001443
说明：443是美国内部城市马里兰州之间的长途区号，从美国以外拨打马里兰州电话需要加上美国的国际区号1，也就是美国马里兰州的国际城市区号为001443或者写为001-443、0010443、+1-443、+1+443、+1443、00-1-443、00 1 443。
以443开头的号码前缀列表
| 号码前缀 | 固话/手机 | 主要城市 | 运营商 |
| (443) 200- | 固话 | Baltimore | Allegiance Telecom |
| (443) 201- | 手机 | Westminster | Cellco Partnership DBA Verizon Wireless |
| (443) 202- | 手机 | Baltimore | Cellco Partnership DBA Verizon Wireless |
| (443) 203- | 固话 | West River | Verizon Maryland |
| (443) 204- | 手机 | Pikesville | New Cingular Wireless PCS - DC |
| (443) 205- | 手机 | Cambridge | Sprint Spectrum L.p. |
| (443) 206- | 手机 | Perryville | Cellco Partnership DBA Verizon Wireless |
| (443) 207- | 手机 | Elkton | Omnipoint Communications Enterprises, L.p. |
| (443) 208- | 固话 | Essex | Sprint Spectrum L.p. |
| (443) 209- | 固话 | Havre De Grace | Cavalier Telephone (mid-atlantic) |
| (443) 210- | 固话 | Aberdeen | Sprint Spectrum L.p. |
| (443) 212- | 固话 | Sparks Glencoe | Us Lec Of Maryland |
| (443) 213- | 固话 | Baltimore | Verizon Maryland |
| (443) 214- | 固话 | Annapolis | New Cingular Wireless PCS - DC |
| (443) 215- | 固话 | Chestertown | Core Communications |
| (443) 216- | 固话 | Dundalk | Cavalier Telephone Mid-atlantic |
| (443) 217- | 固话 | Annapolis | Core Communications |
| (443) 218- | 固话 | Reisterstown | Global Crossing Local Services-md |
| (443) 219- | 固话 | Baltimore | Level 3 Communications |
| (443) 220- | 固话 | Baltimore | Verizon Maryland |
| (443) 221- | 固话 | Annapolis | Level 3 Communications |
| (443) 222- | 固话 | Reisterstown | Xo Maryland |
| (443) 223- | 手机 | Annapolis | Cellco Partnership DBA Verizon Wireless |
| (443) 224- | 固话 | Baltimore | Mci Worldcom Communications |
| (443) 225- | 固话 | Cambridge | Sprint Spectrum L.p. |
| (443) 226- | 手机 | Baltimore | Sprint Spectrum L.p. |
| (443) 227- | 固话 | Port Deposit | Ctc Communications Corp. |
| (443) 228- | 固话 | Middle River | Us Lec Of Maryland |
| (443) 229- | 固话 | Severna Park | Cavalier Telephone Mid-atlantic |
| (443) 230- | 固话 | Odenton | Ctc Communications Corp. |
| (443) 231- | 固话 | Baltimore | AT&T Local |
| (443) 232- | 固话 | Willards | Cavalier Telephone (mid-atlantic) |
| (443) 233- | 固话 | Mardela Springs | Cavalier Telephone (mid-atlantic) |
| (443) 234- | 固话 | Snow Hill | Cavalier Telephone (mid-atlantic) |
| (443) 235- | 手机 | Salisbury | Cellco Partnership DBA Verizon Wireless |
| (443) 236- | 固话 | Cardiff | Core Communications |
| (443) 237- | 固话 | North Beach | Core Communications |
| (443) 238- | 固话 | Parkton | Ctc Communications Corp. |
| (443) 239- | 手机 | Easton | New Cingular Wireless PCS - DC |
| (443) 240- | 手机 | Baltimore | New Cingular Wireless PCS - DC |
| (443) 241- | 固话 | Westminster | Global Naps South |
| (443) 242- | 固话 | Sparrows Point | Cavalier Telephone Mid-atlantic |
| (443) 243- | 手机 | Fallston | Cellco Partnership DBA Verizon Wireless |
| (443) 244- | 固话 | Westminster | Level 3 Communications |
| (443) 245- | 固话 | Elkton | Cavalier Telephone (mid-atlantic) |
| (443) 246- | 固话 | Elkton | Core Communications |
| (443) 247- | 固话 | Union Bridge | Ctc Communications Corp. |
| (443) 248- | 手机 | Catonsville | Cellco Partnership DBA Verizon Wireless |
| (443) 249- | 固话 | Stevensville | Verizon Maryland |
| (443) 250- | 手机 | Baltimore | Sprint Spectrum L.p. |
| (443) 251- | 手机 | Chestertown | Local Access LLC |
| (443) 252- | 手机 | Perryville | Cellco Partnership DBA Verizon Wireless |
| (443) 253- | 手机 | Baltimore | New Cingular Wireless PCS - DC |
| (443) 254- | 手机 | Annapolis | Omnipoint Communications Cap Operations |
| (443) 255- | 手机 | Baltimore | New Cingular Wireless PCS - DC |
| (443) 256- | 固话 | North East | Ctc Communications Corp. |
| (443) 257- | 手机 | Baltimore | Cellco Partnership DBA Verizon Wireless |
| (443) 258- | 手机 | Easton | New Cingular Wireless PCS - DC |
| (443) 259- | 固话 | Columbia | Verizon Maryland |
| (443) 260- | 固话 | Salisbury | Verizon Maryland |
| (443) 261- | 固话 | Severna Park | Mci Worldcom Communications |
| (443) 262- | 固话 | Centreville | Verizon Maryland |
| (443) 263- | 固话 | Baltimore | Verizon Maryland |
| (443) 264- | 固话 | Pikesville | Xo Maryland |
| (443) 265- | 固话 | Fork | Cavalier Telephone Mid-atlantic |
| (443) 266- | 固话 | Glenwood | Global Crossing Local Services-md |
| (443) 267- | 固话 | Darlington | Teleport Communications America |
| (443) 268- | 固话 | Baltimore | Core Communications |
| (443) 269- | 固话 | Towson | Xo Maryland |
| (443) 270- | 固话 | Baltimore | Paetec Communications |
| (443) 271- | 手机 | Baltimore | Sprint Spectrum L.p. |
| (443) 272- | 固话 | Baltimore | Teleport Communications America |
| (443) 273- | 固话 | Reisterstown | Teleport Communications America |
| (443) 274- | 固话 | Severn | Verizon Maryland |
| (443) 275- | 固话 | Baltimore | Comcast Phone Of Northern Maryland |
| (443) 276- | 固话 | Baltimore | Allegiance Telecom |
| (443) 277- | 手机 | Sykesville | Sprint Spectrum L.p. |
| (443) 278- | 固话 | Baltimore | Vdl DBA Global Telecom Brokers |
| (443) 279- | 固话 | Baltimore | Allegiance Telecom |
| (443) 280- | 手机 | Sykesville | New Cingular Wireless PCS - DC |
| (443) 281- | 固话 | Baltimore | Allegiance Telecom |
| (443) 282- | 手机 | Chestertown | Sprint Spectrum L.p. |
| (443) 283- | 固话 | Baltimore | Paetec Communications |
| (443) 284- | 固话 | Jessup | Xo Maryland |
| (443) 285- | 固话 | Columbia | Verizon Maryland |
| (443) 286- | 手机 | Baltimore | Cellco Partnership DBA Verizon Wireless |
| (443) 287- | 固话 | Baltimore | Verizon Maryland |
| (443) 288- | 固话 | Baltimore | Allegiance Telecom |
| (443) 289- | 固话 | Westminster | Mci Worldcom Communications |
| (443) 290- | 固话 | Parkville | Tw Telecom Of Maryland LLC |
| (443) 291- | 固话 | Hampstead | Global Crossing Local Services-md |
| (443) 292- | 固话 | Laurel | Level 3 Communications |
| (443) 293- | 固话 | Westminster | Global Crossing Local Services-md |
| (443) 294- | 固话 | West River | Global Crossing Local Services-md |
| (443) 295- | 固话 | Prince Frederick | Level 3 Communications |
| (443) 296- | 固话 | Baltimore | Global Crossing Local Services-md |
| (443) 297- | 固话 | Arbutus | Teleport Communications America |
| (443) 298- | 手机 | Easton | New Cingular Wireless PCS - DC |
| (443) 299- | 固话 | Fallston | Global Crossing Local Services-md |
| (443) 300- | 固话 | Sykesville | Broadwing Communications. LLC |
| (443) 301- | 手机 | Baltimore | New Cingular Wireless PCS - DC |
| (443) 302- | 固话 | Crofton | Global Crossing Local Services-md |
| (443) 303- | 固话 | Aberdeen | Global Crossing Local Services-md |
| (443) 304- | 固话 | Baltimore | Global Crossing Local Services-md |
| (443) 305- | 固话 | Baltimore | Global Crossing Local Services-md |
| (443) 306- | 手机 | Baltimore | Sprint Spectrum L.p. |
| (443) 307- | 固话 | Bel Air | Global Crossing Local Services-md |
| (443) 308- | 固话 | Baltimore | Allegiance Telecom |
| (443) 309- | 手机 | Elkton | Sprint Spectrum L.p. |
| (443) 310- | 手机 | Baltimore | New Cingular Wireless PCS - DC |
| (443) 312- | 固话 | Baltimore | Global Crossing Local Services-md |
| (443) 313- | 固话 | Fork | Global Crossing Local Services-md |
| (443) 314- | 手机 | Baltimore | Sprint Spectrum L.p. |
| (443) 315- | 固话 | Baltimore | Global Crossing Local Services-md |
| (443) 316- | 固话 | Baltimore | Global Crossing Local Services-md |
| (443) 317- | 固话 | Baltimore | Global Crossing Local Services-md |
| (443) 318- | 固话 | Cockeysville | Cavalier Telephone (mid-atlantic) |
| (443) 319- | 固话 | Columbia | Cavalier Telephone (mid-atlantic) |
| (443) 320- | 固话 | Baltimore | Global Crossing Local Services-md |
| (443) 321- | 固话 | Annapolis | Paetec Communications |
| (443) 322- | 固话 | Towson | Cavalier Telephone Mid-atlantic |
| (443) 323- | 固话 | Rhodesdale | Cavalier Telephone (mid-atlantic) |
| (443) 324- | 手机 | Baltimore | Sprint Spectrum L.p. |
| (443) 325- | 固话 | Ellicott City | Cavalier Telephone Mid-atlantic |
| (443) 326- | 手机 | Baltimore | New Cingular Wireless PCS - DC |
| (443) 327- | 固话 | Aberdeen | Cavalier Telephone Mid-atlantic |
| (443) 328- | 固话 | Sykesville | Ctc Communications Corp. |
| (443) 329- | 固话 | Jessup | Global Crossing Local Services-md |
| (443) 330- | 固话 | Baltimore | Cavalier Telephone Mid-atlantic |
| (443) 331- | 固话 | Taneytown | Ctc Communications Corp. |
| (443) 332- | 固话 | Crofton | Cavalier Telephone Mid-atlantic |
| (443) 333- | 手机 | Annapolis | Leap Wireless Intl DBA Cricket Comm |
| (443) 334- | 固话 | Towson | Allegiance Telecom |
| (443) 335- | 固话 | Brooklyn | Xo Maryland |
| (443) 336- | 手机 | Annapolis | Sprint Spectrum L.p. |
| (443) 337- | 固话 | Sparrows Point | Xo Maryland |
| (443) 338- | 固话 | Sparks Glencoe | Ctc Communications Corp. |
| (443) 339- | 固话 | Sherwood Forest | Ctc Communications Corp. |
| (443) 340- | 手机 | Westminster | Cellco Partnership DBA Verizon Wireless |
| (443) 341- | 固话 | Baltimore | Level 3 Communications |
| (443) 342- | 固话 | Solomons | Ctc Communications Corp. |
| (443) 343- | 固话 | Millersville | Teleport Communications America |
| (443) 344- | 固话 | Severna Park | Core Communications |
| (443) 345- | 固话 | Aberdeen | Level 3 Communications |
| (443) 346- | 固话 | Severna Park | Xo Maryland |
| (443) 347- | 固话 | Cardiff | Ctc Communications Corp. |
| (443) 348- | 固话 | Baltimore | Teleport Communications America |
| (443) 349- | 固话 | Westminster | Core Communications |
| (443) 350- | 手机 | Elkton | Cellco Partnership DBA Verizon Wireless |
| (443) 351- | 固话 | Columbia | Us Lec Of Maryland |
| (443) 352- | 固话 | Baltimore | AT&T Local |
| (443) 353- | 固话 | Cockeysville | Verizon Maryland |
| (443) 354- | 固话 | Baltimore | Level 3 Communications |
| (443) 355- | 固话 | Baltimore | Level 3 Communications |
| (443) 356- | 固话 | Bel Air | Level 3 Communications |
| (443) 357- | 固话 | Pikesville | Verizon Maryland |
| (443) 358- | 固话 | Salisbury | Ymax Communications Corp. |
| (443) 359- | 手机 | Delmar | Cellco Partnership DBA Verizon Wireless |
| (443) 360- | 固话 | Aberdeen | Teleport Communications America |
| (443) 361- | 固话 | Sykesville | Core Communications |
| (443) 362- | 手机 | Easton | Omnipoint Communications Cap Operations |
| (443) 363- | 固话 | Severn | Xo Maryland |
| (443) 364- | 固话 | Baltimore | Teleport Communications America |
| (443) 365- | 手机 | Salisbury | Omnipoint Communications Cap Operations |
| (443) 366- | 手机 | Salisbury | Sprint Spectrum L.p. |
| (443) 367- | 固话 | Columbia | Verizon Maryland |
| (443) 368- | 固话 | Westminster | Core Communications |
| (443) 369- | 固话 | Bel Air | Core Communications |
| (443) 370- | 固话 | Annapolis | New Cingular Wireless PCS - DC |
| (443) 371- | 固话 | Bel Air | Broadwing Communications. LLC |
| (443) 372- | 固话 | Edgewood | Us Lec Of Maryland |
| (443) 373- | 手机 | Ocean City | Sprint Spectrum L.p. |
| (443) 374- | 固话 | Aberdeen | Cavalier Telephone (mid-atlantic) |
| (443) 375- | 手机 | Hampstead | Sprint Spectrum L.p. |
| (443) 376- | 固话 | Baltimore | Teleport Communications America |
| (443) 377- | 手机 | Towson | Cellco Partnership DBA Verizon Wireless |
| (443) 378- | 手机 | Baltimore | Sprint Spectrum L.p. |
| (443) 379- | 固话 | Pikesville | Comcast Phone Of Northern Maryland |
| (443) 380- | 固话 | Baltimore | Level 3 Communications |
| (443) 381- | 固话 | Reisterstown | Xo Maryland |
| (443) 382- | 固话 | Cambridge | Core Communications |
| (443) 383- | 固话 | Westminster | Ctc Communications Corp. |
| (443) 384- | 固话 | Parkville | Cavalier Telephone Mid-atlantic |
| (443) 385- | 固话 | Easton | Core Communications |
| (443) 386- | 手机 | Baltimore | Cellco Partnership DBA Verizon Wireless |
| (443) 387- | 固话 | Pocomoke | Core Communications |
| (443) 388- | 手机 | Baltimore | Cellco Partnership DBA Verizon Wireless |
| (443) 389- | 固话 | Salisbury | Core Communications |
| (443) 390- | 固话 | Churchville | Global Crossing Local Services-md |
| (443) 391- | 固话 | Baltimore | Global Crossing Local Services-md |
| (443) 392- | 固话 | Baltimore | AT&T Local |
| (443) 393- | 固话 | Baltimore | Global Crossing Local Services-md |
| (443) 394- | 固话 | Pikesville | Verizon Maryland |
| (443) 395- | 固话 | Aberdeen | Verizon Maryland |
| (443) 396- | 固话 | Odenton | Global Crossing Local Services-md |
| (443) 397- | 手机 | Salisbury | Cellco Partnership DBA Verizon Wireless |
| (443) 398- | 手机 | Sykesville | Sprint Spectrum L.p. |
| (443) 399- | 固话 | Baltimore | Global Crossing Local Services-md |
| (443) 400- | 固话 | Baltimore | Xo Maryland |
| (443) 401- | 手机 | Baltimore | Cellco Partnership DBA Verizon Wireless |
| (443) 402- | 固话 | Edgewood | Teleport Communications America |
| (443) 403- | 固话 | Aberdeen | Broadwing Communications. LLC |
| (443) 404- | 手机 | Solomons | Sprint Spectrum L.p. |
| (443) 405- | 固话 | Baltimore | Global Crossing Local Services-md |
| (443) 406- | 固话 | Elkton | Teleport Communications America |
| (443) 407- | 固话 | Baltimore | Allegiance Telecom |
| (443) 408- | 固话 | Baltimore | Xo Maryland |
| (443) 409- | 固话 | Edgewood | Cavalier Telephone Mid-atlantic |
| (443) 410- | 固话 | Baltimore | Centurylink Communications LLC |
| (443) 412- | 固话 | Churchville | Teleport Communications America |
| (443) 413- | 手机 | Baltimore | Sprint Spectrum L.p. |
| (443) 414- | 手机 | Baltimore | Sprint Spectrum L.p. |
| (443) 415- | 手机 | Baltimore | Sprint Spectrum L.p. |
| (443) 416- | 手机 | Baltimore | Sprint Spectrum L.p. |
| (443) 417- | 固话 | Fallston | Teleport Communications America |
| (443) 418- | 手机 | Baltimore | Sprint Spectrum L.p. |
| (443) 419- | 固话 | Glenwood | Cavalier Telephone Mid-atlantic |
| (443) 420- | 固话 | Baltimore | Global Crossing Local Services-md |
| (443) 421- | 手机 | Fork | New Cingular Wireless PCS - DC |
| (443) 422- | 手机 | Glen Burnie | Leap Wireless Intl DBA Cricket Comm |
| (443) 423- | 固话 | Baltimore | Broadwing Communications. LLC |
| (443) 424- | 固话 | Cardiff | Teleport Communications America |
| (443) 425- | 固话 | Baltimore | AT&T Local |
| (443) 426- | 固话 | Baltimore | Paetec Communications |
| (443) 427- | 固话 | Princess Anne | Core Communications |
| (443) 428- | 固话 | Cockeysville | Core Communications |
| (443) 429- | 固话 | Woodlawn | Cavalier Telephone Mid-atlantic |
| (443) 430- | 固话 | Baltimore | Xo Maryland |
| (443) 431- | 固话 | Randallstown | Xo Maryland |
| (443) 432- | 固话 | Prince Frederick | Ctc Communications Corp. |
| (443) 433- | 固话 | Annapolis | Xo Maryland |
| (443) 434- | 固话 | Federalsburg | Comcast Phone Of Northern Maryland |
| (443) 435- | 手机 | Baltimore | Sprint Spectrum L.p. |
| (443) 436- | 固话 | Woodlawn | Verizon Maryland |
| (443) 437- | 固话 | Pocomoke | Teleport Communications America |
| (443) 438- | 手机 | Baltimore | Cellco Partnership DBA Verizon Wireless |
| (443) 439- | 固话 | Trappe | Cellco Partnership DBA Verizon Wireless |
| (443) 440- | 固话 | Annapolis | Verizon Maryland |
| (443) 441- | 固话 | Glenwood | Teleport Communications America |
| (443) 442- | 固话 | Parkville | Cavalier Telephone Mid-atlantic |
| (443) 444- | 固话 | Baltimore | Verizon Maryland |
| (443) 445- | 固话 | Elkridge | Verizon Maryland |
| (443) 446- | 固话 | Queenstown | Mci Worldcom Communications |
| (443) 447- | 手机 | Baltimore | Leap Wireless Intl DBA Cricket Comm |
| (443) 448- | 固话 | Denton | Comcast Phone Of Northern Maryland |
| (443) 449- | 固话 | Baltimore | Broadview Networks |
| (443) 450- | 固话 | Baltimore | Level 3 Communications |
| (443) 451- | 固话 | Baltimore | Paetec Communications |
| (443) 452- | 固话 | Baltimore | Us Lec Of Maryland |
| (443) 453- | 固话 | Baltimore | Neutral Tandem-maryland |
| (443) 454- | 手机 | Annapolis | Omnipoint Communications Cap Operations |
| (443) 455- | 固话 | Baltimore | Verizon Maryland |
| (443) 456- | 固话 | Edgewood | AT&T Local |
| (443) 457- | 固话 | Baltimore | Teleport Communications America |
| (443) 458- | 固话 | Annapolis | Allegiance Telecom |
| (443) 459- | 固话 | Baltimore | Paetec Communications |
| (443) 460- | 固话 | Baltimore | Allegiance Telecom |
| (443) 461- | 固话 | Parkville | Us Lec Of Maryland |
| (443) 462- | 手机 | Baltimore | Cellco Partnership DBA Verizon Wireless |
| (443) 463- | 手机 | Baltimore | Sprint Spectrum L.p. |
| (443) 464- | 固话 | Churchville | Broadview Networks |
| (443) 465- | 手机 | Towson | Cellco Partnership DBA Verizon Wireless |
| (443) 466- | 手机 | Elkton | Sprint Spectrum L.p. |
| (443) 467- | 手机 | Baltimore | Leap Wireless Intl DBA Cricket Comm |
| (443) 468- | 手机 | Baltimore | Sprint Spectrum L.p. |
| (443) 469- | 手机 | Baltimore | Leap Wireless Intl DBA Cricket Comm |
| (443) 470- | 固话 | Towson | Us Lec Of Maryland |
| (443) 471- | 固话 | Columbia | Us Lec Of Maryland |
| (443) 472- | 固话 | Baltimore | Level 3 Communications |
| (443) 473- | 手机 | Baltimore | Sprint Spectrum L.p. |
| (443) 474- | 手机 | Catonsville | New Cingular Wireless PCS - DC |
| (443) 475- | 固话 | Baltimore | Mci Worldcom Communications |
| (443) 476- | 手机 | Annapolis | Verizon Maryland |
| (443) 477- | 手机 | Cambridge | Cellco Partnership DBA Verizon Wireless |
| (443) 478- | 手机 | Baltimore | Cellco Partnership DBA Verizon Wireless |
| (443) 479- | 固话 | Laurel | Verizon Maryland |
| (443) 480- | 手机 | Chestertown | Cellco Partnership DBA Verizon Wireless |
| (443) 481- | 固话 | Annapolis | Us Lec Of Maryland |
| (443) 482- | 固话 | Annapolis | Verizon Maryland |
| (443) 483- | 固话 | Cardiff | Broadwing Communications. LLC |
| (443) 484- | 固话 | Edgewood | Broadwing Communications. LLC |
| (443) 485- | 固话 | Elkton | Broadwing Communications. LLC |
| (443) 486- | 固话 | Prince Frederick | Broadwing Communications. LLC |
| (443) 487- | 固话 | Westminster | Broadwing Communications. LLC |
| (443) 488- | 手机 | Baltimore | Leap Wireless Intl DBA Cricket Comm |
| (443) 489- | 固话 | Baltimore | Teleport Communications America |
| (443) 490- | 固话 | Edgewood | Global Crossing Local Services-md |
| (443) 491- | 固话 | Parkton | Global Crossing Local Services-md |
| (443) 492- | 固话 | Baltimore | Global Crossing Local Services-md |
| (443) 493- | 手机 | Delmar | Cellco Partnership DBA Verizon Wireless |
| (443) 494- | 固话 | Millersville | Global Crossing Local Services-md |
| (443) 495- | 固话 | Baltimore | Global Crossing Local Services-md |
| (443) 496- | 手机 | Easton | Sprint Spectrum L.p. |
| (443) 497- | 手机 | Salisbury | Sprint Spectrum L.p. |
| (443) 498- | 固话 | Baltimore | Allegiance Telecom |
| (443) 499- | 固话 | Jarrettsville | Global Crossing Local Services-md |
| (443) 500- | 手机 | Baltimore | Leap Wireless Intl DBA Cricket Comm |
| (443) 501- | 固话 | Baltimore | Global Crossing Local Services-md |
| (443) 502- | 固话 | Havre De Grace | Teleport Communications America |
| (443) 503- | 固话 | Baltimore | Xo Maryland |
| (443) 504- | 固话 | Fallston | Cavalier Telephone Mid-atlantic |
| (443) 505- | 固话 | Baltimore | Global Crossing Local Services-md |
| (443) 506- | 手机 | Baltimore | Sprint Spectrum L.p. |
| (443) 507- | 固话 | Hampstead | Teleport Communications America |
| (443) 508- | 固话 | Hampstead | Cavalier Telephone Mid-atlantic |
| (443) 509- | 手机 | Baltimore | Cellco Partnership DBA Verizon Wireless |
| (443) 510- | 手机 | Annapolis | Cellco Partnership DBA Verizon Wireless |
| (443) 512- | 固话 | Edgewood | Verizon Maryland |
| (443) 513- | 手机 | Berlin | New Cingular Wireless PCS - DC |
| (443) 514- | 固话 | Columbia | Us Lec Of Maryland |
| (443) 515- | 手机 | Cambridge | Cellco Partnership DBA Verizon Wireless |
| (443) 516- | 固话 | Sykesville | Global Crossing Local Services-md |
| (443) 517- | 固话 | Baltimore | Global Crossing Local Services-md |
| (443) 518- | 固话 | Columbia | Verizon Maryland |
| (443) 519- | 固话 | Baltimore | Global Crossing Local Services-md |
| (443) 520- | 手机 | Catonsville | New Cingular Wireless PCS - DC |
| (443) 521- | 手机 | Cambridge | Cellco Partnership DBA Verizon Wireless |
| (443) 522- | 固话 | Reisterstown | Paetec Communications |
| (443) 523- | 固话 | Salisbury | Verizon Maryland |
| (443) 524- | 固话 | Baltimore | Allegiance Telecom |
| (443) 525- | 手机 | Baltimore | Leap Wireless Intl DBA Cricket Comm |
| (443) 526- | 固话 | Havre De Grace | Ctc Communications Corp. |
| (443) 527- | 手机 | Baltimore | Omnipoint Communications Cap Operations |
| (443) 528- | 手机 | Bel Air | Sprint Spectrum L.p. |
| (443) 529- | 手机 | Baltimore | Omnipoint Communications Cap Operations |
| (443) 530- | 固话 | Baltimore | Paetec Communications |
| (443) 531- | 手机 | Baltimore | Leap Wireless Intl DBA Cricket Comm |
| (443) 532- | 手机 | Prince Frederick | Sprint Spectrum L.p. |
| (443) 533- | 固话 | Jarrettsville | Teleport Communications America |
| (443) 534- | 固话 | Annapolis | Cellco Partnership DBA Verizon Wireless |
| (443) 535- | 固话 | Columbia | Verizon Maryland |
| (443) 536- | 手机 | Westminster | Sprint Spectrum L.p. |
| (443) 537- | 固话 | Columbia | Verizon Maryland |
| (443) 538- | 手机 | Columbia | Omnipoint Communications Cap Operations |
| (443) 539- | 固话 | Columbia | Us Lec Of Maryland |
| (443) 540- | 手机 | Baltimore | New Cingular Wireless PCS - DC |
| (443) 541- | 固话 | Baltimore | Paetec Communications |
| (443) 542- | 固话 | Columbia | Comcast Phone Of Northern Maryland |
| (443) 543- | 固话 | Arbutus | Verizon Maryland |
| (443) 544- | 固话 | Pikesville | Cavalier Telephone Mid-atlantic |
| (443) 545- | 固话 | Columbia | Broadwing Communications. LLC |
| (443) 546- | 固话 | Baltimore | Verizon Maryland |
| (443) 547- | 手机 | Westminster | Cellco Partnership DBA Verizon Wireless |
| (443) 548- | 固话 | Baltimore | Allegiance Telecom |
| (443) 549- | 固话 | Dundalk | Us Lec Of Maryland |
| (443) 550- | 固话 | North Beach | Level 3 Communications |
| (443) 551- | 固话 | Baltimore | Level 3 Communications |
| (443) 552- | 固话 | Baltimore | Verizon Maryland |
| (443) 553- | 手机 | Elkton | Cellco Partnership DBA Verizon Wireless |
| (443) 554- | 手机 | Middle River | Omnipoint Communications Cap Operations |
| (443) 556- | 固话 | Cockeysville | Verizon Maryland |
| (443) 557- | 固话 | Baltimore | Allegiance Telecom |
| (443) 558- | 固话 | Aberdeen | Xo Maryland |
| (443) 559- | 固话 | Essex | Comcast Phone Of Northern Maryland |
| (443) 560- | 手机 | Baltimore | Sprint Spectrum L.p. |
| (443) 561- | 固话 | Columbia | Us Lec Of Maryland |
| (443) 562- | 手机 | Baltimore | New Cingular Wireless PCS - DC |
| (443) 563- | 手机 | Baltimore | Sprint Spectrum L.p. |
| (443) 564- | 固话 | Baltimore | Level 3 Communications |
| (443) 565- | 固话 | Randallstown | Cavalier Telephone Mid-atlantic |
| (443) 566- | 手机 | Chesapeake City | Cellco Partnership DBA Verizon Wireless |
| (443) 567- | 固话 | Bel Air | Level 3 Communications |
| (443) 568- | 固话 | Arbutus | Allegiance Telecom |
| (443) 569- | 固话 | Annapolis | Level 3 Communications |
| (443) 570- | 手机 | Baltimore | Omnipoint Communications Cap Operations |
| (443) 571- | 手机 | Baltimore | Cellco Partnership DBA Verizon Wireless |
| (443) 572- | 固话 | Glen Burnie | Verizon Maryland |
| (443) 573- | 固话 | Columbia | Us Lec Of Maryland |
| (443) 574- | 固话 | Ellicott City | Us Lec Of Maryland |
| (443) 575- | 固话 | Arbutus | Cavalier Telephone Mid-atlantic |
| (443) 576- | 固话 | Baltimore | Allegiance Telecom |
| (443) 577- | 固话 | Columbia | Us Lec Of Maryland |
| (443) 578- | 固话 | Baltimore | Xo Maryland |
| (443) 579- | 固话 | Essex | Us Lec Of Maryland |
| (443) 580- | 手机 | Baltimore | Sprint Spectrum L.p. |
| (443) 581- | 固话 | Middle River | Xo Maryland |
| (443) 582- | 固话 | Churchville | Ctc Communications Corp. |
| (443) 583- | 固话 | Columbia | Ctc Communications Corp. |
| (443) 584- | 固话 | Crofton | Ctc Communications Corp. |
| (443) 585- | 固话 | Darlington | Ctc Communications Corp. |
| (443) 586- | 固话 | Dundalk | Xo Maryland |
| (443) 587- | 固话 | Edgewood | Ctc Communications Corp. |
| (443) 588- | 固话 | Baltimore | Allegiance Telecom |
| (443) 589- | 固话 | Cockeysville | Us Lec Of Maryland |
| (443) 590- | 固话 | Reisterstown | Global Crossing Local Services-md |
| (443) 591- | 手机 | Glen Burnie | Cellco Partnership DBA Verizon Wireless |
| (443) 592- | 固话 | Elkridge | Xo Maryland |
| (443) 593- | 固话 | Elkton | Ctc Communications Corp. |
| (443) 594- | 固话 | Baltimore | Global Crossing Local Services-md |
| (443) 595- | 固话 | Sparks Glencoe | Global Crossing Local Services-md |
| (443) 596- | 固话 | Essex | Xo Maryland |
| (443) 597- | 固话 | Severna Park | Global Crossing Local Services-md |
| (443) 598- | 固话 | Sherwood Forest | Global Crossing Local Services-md |
| (443) 599- | 固话 | Baltimore | Global Crossing Local Services-md |
| (443) 600- | 手机 | Essex | Omnipoint Communications Cap Operations |
| (443) 601- | 固话 | Fallston | Ctc Communications Corp. |
| (443) 602- | 手机 | Catonsville | Cellco Partnership DBA Verizon Wireless |
| (443) 603- | 固话 | Annapolis | Paetec Communications |
| (443) 604- | 手机 | Baltimore | Cellco Partnership DBA Verizon Wireless |
| (443) 605- | 固话 | Westminster | Cavalier Telephone Mid-atlantic |
| (443) 606- | 固话 | Fork | Ctc Communications Corp. |
| (443) 607- | 固话 | West River | Cavalier Telephone Mid-atlantic |
| (443) 608- | 手机 | Towson | Leap Wireless Intl DBA Cricket Comm |
| (443) 609- | 固话 | Sykesville | Cavalier Telephone Mid-atlantic |
| (443) 610- | 手机 | Baltimore | Cellco Partnership DBA Verizon Wireless |
| (443) 612- | 固话 | Catonsville | Verizon Maryland |
| (443) 613- | 手机 | Towson | Leap Wireless Intl DBA Cricket Comm |
| (443) 614- | 手机 | Salisbury | Cellco Partnership DBA Verizon Wireless |
| (443) 615- | 手机 | Catonsville | Cellco Partnership DBA Verizon Wireless |
| (443) 616- | 固话 | Bel Air | Cavalier Telephone Mid-atlantic |
| (443) 617- | 手机 | Fallston | Cellco Partnership DBA Verizon Wireless |
| (443) 618- | 手机 | Glen Burnie | Cellco Partnership DBA Verizon Wireless |
| (443) 619- | 手机 | Bel Air | Cellco Partnership DBA Verizon Wireless |
| (443) 620- | 固话 | Baltimore | Teleport Communications America |
| (443) 621- | 手机 | Baltimore | Sprint Spectrum L.p. |
| (443) 622- | 手机 | Baltimore | Sprint Spectrum L.p. |
| (443) 623- | 手机 | Glen Burnie | Sprint Spectrum L.p. |
| (443) 624- | 手机 | Prince Frederick | Cellco Partnership DBA Verizon Wireless |
| (443) 625- | 固话 | Fork | Broadwing Communications. LLC |
| (443) 626- | 固话 | Middle River | Cavalier Telephone Mid-atlantic |
| (443) 627- | 固话 | Baltimore | Verizon Maryland |
| (443) 628- | 固话 | Glen Burnie | Xo Maryland |
| (443) 629- | 手机 | Baltimore | Sprint Spectrum L.p. |
| (443) 630- | 手机 | Baltimore | Cellco Partnership DBA Verizon Wireless |
| (443) 631- | 手机 | Catonsville | New Cingular Wireless PCS - DC |
| (443) 632- | 固话 | Towson | Us Lec Of Maryland |
| (443) 633- | 手机 | Baltimore | Sprint Spectrum L.p. |
| (443) 634- | 固话 | Odenton | Verizon Maryland |
| (443) 635- | 手机 | Baltimore | Leap Wireless Intl DBA Cricket Comm |
| (443) 636- | 固话 | Catonsville | Omnipoint Communications Cap Operations |
| (443) 637- | 固话 | Baltimore | Xo Maryland |
| (443) 638- | 固话 | Ellicott City | Global Naps South |
| (443) 639- | 固话 | Hampstead | Ctc Communications Corp. |
| (443) 640- | 固话 | Bel Air | Us Lec Of Maryland |
| (443) 641- | 固话 | Pikesville | Broadwing Communications. LLC |
| (443) 642- | 手机 | Baltimore | Cellco Partnership DBA Verizon Wireless |
| (443) 643- | 固话 | Bel Air | Verizon Maryland |
| (443) 644- | 固话 | Jarrettsville | Ctc Communications Corp. |
| (443) 645- | 固话 | Millersville | Ctc Communications Corp. |
| (443) 646- | 固话 | North Beach | Ctc Communications Corp. |
| (443) 647- | 固话 | New Windsor | Ctc Communications Corp. |
| (443) 648- | 固话 | Baltimore | Teleport Communications America |
| (443) 649- | 固话 | Sparrows Point | Us Lec Of Maryland |
| (443) 650- | 固话 | Reisterstown | Allegiance Telecom |
| (443) 651- | 手机 | Baltimore | Cellco Partnership DBA Verizon Wireless |
| (443) 652- | 固话 | Towson | Verizon Maryland |
| (443) 653- | 手机 | Baltimore | Omnipoint Communications Cap Operations |
| (443) 654- | 固话 | Jessup | Verizon Maryland |
| (443) 655- | 手机 | Bel Air | New Cingular Wireless PCS - DC |
| (443) 656- | 固话 | Columbia | Cavalier Telephone Mid-atlantic |
| (443) 657- | 固话 | Randallstown | Tw Telecom Of Maryland LLC |
| (443) 658- | 固话 | Woodlawn | Global Naps South |
| (443) 659- | 固话 | West River | Global Naps South |
| (443) 660- | 固话 | Baltimore | Comcast Phone Of Northern Maryland |
| (443) 661- | 固话 | Jessup | Cavalier Telephone Mid-atlantic |
| (443) 662- | 固话 | Sparks Glencoe | Cavalier Telephone Mid-atlantic |
| (443) 663- | 固话 | Woodlawn | Verizon Maryland |
| (443) 664- | 固话 | Ocean City | Cavalier Telephone (mid-atlantic) |
| (443) 665- | 固话 | Nanticoke | Cavalier Telephone (mid-atlantic) |
| (443) 666- | 手机 | Chestertown | Level 3 Communications |
| (443) 668- | 手机 | Catonsville | New Cingular Wireless PCS - DC |
| (443) 669- | 固话 | Delmar | Cavalier Telephone (mid-atlantic) |
| (443) 670- | 固话 | Catonsville | Cavalier Telephone Mid-atlantic |
| (443) 671- | 固话 | New Windsor | Teleport Communications America |
| (443) 672- | 固话 | Parkton | Teleport Communications America |
| (443) 673- | 固话 | Brooklyn | Cavalier Telephone Mid-atlantic |
| (443) 674- | 固话 | North East | Teleport Communications America |
| (443) 675- | 固话 | Randallstown | Cavalier Telephone (mid-atlantic) |
| (443) 676- | 手机 | Baltimore | New Cingular Wireless PCS - DC |
| (443) 677- | 手机 | Baltimore | Sprint Spectrum L.p. |
| (443) 678- | 固话 | Parkville | Verizon Maryland |
| (443) 679- | 固话 | Baltimore | Teleport Communications America |
| (443) 680- | 手机 | Baltimore | Sprint Spectrum L.p. |
| (443) 681- | 手机 | Baltimore | Cellco Partnership DBA Verizon Wireless |
| (443) 682- | 固话 | Baltimore | Cellco Partnership DBA Verizon Wireless |
| (443) 683- | 手机 | Baltimore | Cellco Partnership DBA Verizon Wireless |
| (443) 684- | 手机 | Prince Frederick | Cellco Partnership DBA Verizon Wireless |
| (443) 685- | 固话 | Severn | Cavalier Telephone (mid-atlantic) |
| (443) 686- | 手机 | Fallston | Sprint Spectrum L.p. |
| (443) 687- | 手机 | Baltimore | Cellco Partnership DBA Verizon Wireless |
| (443) 688- | 固话 | Severn | Cavalier Telephone Mid-atlantic |
| (443) 689- | 固话 | Cockeysville | Cavalier Telephone Mid-atlantic |
| (443) 690- | 手机 | Baltimore | Cellco Partnership DBA Verizon Wireless |
| (443) 691- | 手机 | Baltimore | New Cingular Wireless PCS - DC |
| (443) 692- | 固话 | Baltimore | Allegiance Telecom |
| (443) 693- | 固话 | Perryville | Teleport Communications America |
| (443) 694- | 手机 | Severna Park | Sprint Spectrum L.p. |
| (443) 695- | 手机 | Baltimore | Cellco Partnership DBA Verizon Wireless |
| (443) 696- | 固话 | Dundalk | Cavalier Telephone Mid-atlantic |
| (443) 697- | 固话 | Catonsville | Global Naps South |
| (443) 698- | 固话 | Odenton | Teleport Communications America |
| (443) 699- | 手机 | Annapolis | Cellco Partnership DBA Verizon Wireless |
| (443) 701- | 固话 | Arbutus | Xo Maryland |
| (443) 702- | 固话 | Pasadena | Cavalier Telephone Mid-atlantic |
| (443) 703- | 固话 | Baltimore | Xo Maryland |
| (443) 704- | 固话 | Odenton | Cavalier Telephone Mid-atlantic |
| (443) 705- | 固话 | Cockeysville | Xo Maryland |
| (443) 706- | 固话 | Crisfield | Cavalier Telephone (mid-atlantic) |
| (443) 707- | Unknown | Local Access LLC | |
| (443) 708- | 固话 | Baltimore | Tw Telecom Of Maryland LLC |
| (443) 709- | 固话 | Arbutus | Cavalier Telephone Mid-atlantic |
| (443) 710- | 固话 | Baltimore | Xo Maryland |
| (443) 712- | 固话 | Reisterstown | Cavalier Telephone Mid-atlantic |
| (443) 713- | 手机 | Columbia | Peerless Network Of Maryland |
| (443) 714- | 固话 | Columbia | Sprint Spectrum L.p. |
| (443) 715- | 固话 | North East | Cavalier Telephone (mid-atlantic) |
| (443) 716- | 固话 | Annapolis | Cavalier Telephone Mid-atlantic |
| (443) 717- | 手机 | Baltimore | Cellco Partnership DBA Verizon Wireless |
| (443) 718- | 固话 | Columbia | Us Lec Of Maryland |
| (443) 719- | 固话 | Jarrettsville | Cavalier Telephone Mid-atlantic |
| (443) 720- | 固话 | Elkton | Xo Maryland |
| (443) 721- | 手机 | Baltimore | Cellco Partnership DBA Verizon Wireless |
| (443) 722- | 手机 | Baltimore | Omnipoint Communications Cap Operations |
| (443) 723- | 固话 | Brooklyn | Sprint Spectrum L.p. |
| (443) 724- | 固话 | Easton | Cavalier Telephone (mid-atlantic) |
| (443) 725- | 固话 | Baltimore | Paetec Communications |
| (443) 726- | 固话 | Towson | Sprint Spectrum L.p. |
| (443) 727- | 固话 | Bishopville | Cavalier Telephone (mid-atlantic) |
| (443) 728- | 固话 | Berlin | Cavalier Telephone (mid-atlantic) |
| (443) 729- | 固话 | Baltimore | Paetec Communications |
| (443) 730- | 固话 | Baltimore | Paetec Communications |
| (443) 731- | 固话 | Port Deposit | Teleport Communications America |
| (443) 732- | 固话 | Westminster | Teleport Communications America |
| (443) 733- | 固话 | Baltimore | AT&T Local |
| (443) 734- | 固话 | Severn | Verizon Maryland |
| (443) 735- | 手机 | Salisbury | New Cingular Wireless PCS - DC |
| (443) 736- | 手机 | Salisbury | New Cingular Wireless PCS - DC |
| (443) 737- | 固话 | Baltimore | Paetec Communications |
| (443) 738- | 固话 | Baltimore | Paetec Communications |
| (443) 739- | 手机 | Baltimore | Omnipoint Communications Cap Operations |
| (443) 740- | 固话 | Baltimore | Telcove Operations |
| (443) 741- | 固话 | Columbia | Mci Worldcom Communications |
| (443) 742- | 手机 | Baltimore | New Cingular Wireless PCS - DC |
| (443) 743- | 手机 | Baltimore | Cellco Partnership DBA Verizon Wireless |
| (443) 744- | 手机 | Reisterstown | Sprint Spectrum L.p. |
| (443) 745- | 手机 | Columbia | Cellco Partnership DBA Verizon Wireless |
| (443) 746- | 固话 | Easton | Level 3 Communications |
| (443) 747- | 固话 | Port Deposit | Core Communications |
| (443) 748- | 固话 | Millersville | Cavalier Telephone Mid-atlantic |
| (443) 749- | 固话 | Baltimore | Cavalier Telephone Mid-atlantic |
| (443) 750- | 手机 | Baltimore | Cellco Partnership DBA Verizon Wireless |
| (443) 751- | 固话 | Woodlawn | Cavalier Telephone Mid-atlantic |
| (443) 752- | 固话 | Bel Air | Cellco Partnership DBA Verizon Wireless |
| (443) 753- | 固话 | Jessup | Allegiance Telecom |
| (443) 754- | 手机 | Salisbury | Cellco Partnership DBA Verizon Wireless |
| (443) 755- | 固话 | Elkridge | Verizon Maryland |
| (443) 756- | 手机 | Baltimore | New Cingular Wireless PCS - DC |
| (443) 757- | 固话 | Elkridge | Cavalier Telephone Mid-atlantic |
| (443) 758- | 固话 | Annapolis | AT&T Local |
| (443) 759- | 手机 | Baltimore | Cellco Partnership DBA Verizon Wireless |
| (443) 760- | 固话 | Aberdeen | AT&T Local |
| (443) 761- | 手机 | Towson | Omnipoint Communications Cap Operations |
| (443) 762- | 手机 | Baltimore | Sprint Spectrum L.p. |
| (443) 763- | 固话 | Baltimore | Omnipoint Communications Cap Operations |
| (443) 764- | 手机 | Glen Burnie | Omnipoint Communications Cap Operations |
| (443) 765- | 手机 | Catonsville | New Cingular Wireless PCS - DC |
| (443) 766- | 固话 | Columbia | Us Lec Of Maryland |
| (443) 767- | 固话 | Reisterstown | Cavalier Telephone Mid-atlantic |
| (443) 768- | 手机 | Baltimore | Sprint Spectrum L.p. |
| (443) 769- | 手机 | Baltimore | Omnipoint Communications Cap Operations |
| (443) 770- | 固话 | Pasadena | Verizon Maryland |
| (443) 771- | 手机 | Prince Frederick | Cellco Partnership DBA Verizon Wireless |
| (443) 772- | 固话 | Essex | Cavalier Telephone Mid-atlantic |
| (443) 773- | 固话 | Baltimore | Allegiance Telecom |
| (443) 774- | 固话 | Baltimore | Global Naps South |
| (443) 776- | 固话 | Baltimore | Bandwidth.com Clec |
| (443) 777- | 固话 | Essex | Verizon Maryland |
| (443) 778- | 固话 | Laurel | Verizon Maryland |
| (443) 779- | 固话 | Aberdeen | Xo Maryland |
| (443) 780- | 固话 | Columbia | Us Lec Of Maryland |
| (443) 781- | 固话 | Pasadena | Xo Maryland |
| (443) 782- | 固话 | Annapolis | Xo Maryland |
| (443) 783- | 手机 | Salisbury | Cellco Partnership DBA Verizon Wireless |
| (443) 784- | 固话 | Baltimore | Teleport Communications America |
| (443) 785- | 固话 | Arbutus | Global Naps South |
| (443) 786- | 手机 | Easton | Cellco Partnership DBA Verizon Wireless |
| (443) 787- | 固话 | Bel Air | Ctc Communications Corp. |
| (443) 788- | 固话 | Aberdeen | Xo Maryland |
| (443) 789- | 手机 | Westminster | New Cingular Wireless PCS - DC |
| (443) 790- | 手机 | Glen Burnie | Sprint Spectrum L.p. |
| (443) 791- | 手机 | Towson | New Cingular Wireless PCS - DC |
| (443) 792- | 固话 | Brooklyn | Verizon Maryland |
| (443) 793- | 固话 | Baltimore | Xo Maryland |
| (443) 794- | 手机 | Baltimore | New Cingular Wireless PCS - DC |
| (443) 795- | 固话 | Baltimore | Xo Maryland |
| (443) 796- | 固话 | Baltimore | Xo Maryland |
| (443) 797- | 固话 | Baltimore | Xo Maryland |
| (443) 798- | 固话 | Towson | Tw Telecom Of Maryland LLC |
| (443) 799- | 手机 | Baltimore | New Cingular Wireless PCS - DC |
| (443) 800- | 手机 | Baltimore | Sprint Spectrum L.p. |
| (443) 801- | 手机 | Baltimore | Sprint Spectrum L.p. |
| (443) 802- | 手机 | Baltimore | Sprint Spectrum L.p. |
| (443) 803- | 手机 | Baltimore | Sprint Spectrum L.p. |
| (443) 804- | 手机 | Baltimore | Sprint Spectrum L.p. |
| (443) 805- | 手机 | Glen Burnie | Omnipoint Communications Cap Operations |
| (443) 806- | 手机 | Baltimore | Sprint Spectrum L.p. |
| (443) 807- | 手机 | Fallston | Sprint Spectrum L.p. |
| (443) 808- | 固话 | Annapolis | Bandwidth.com Clec |
| (443) 809- | Unknown | Level 3 Communications | |
| (443) 810- | 手机 | Baltimore | Sprint Spectrum L.p. |
| (443) 812- | 手机 | Columbia | Cellco Partnership DBA Verizon Wireless |
| (443) 813- | 手机 | Baltimore | Cellco Partnership DBA Verizon Wireless |
| (443) 814- | 手机 | Baltimore | Cellco Partnership DBA Verizon Wireless |
| (443) 815- | 固话 | Baltimore | Xo Maryland |
| (443) 816- | 固话 | Severna Park | Allegiance Telecom |
| (443) 817- | 固话 | Baltimore | Allegiance Telecom |
| (443) 818- | 固话 | Pasadena | Level 3 Communications |
| (443) 820- | 固话 | Baltimore | Paetec Communications |
| (443) 821- | 手机 | Westminster | Sprint Spectrum L.p. |
| (443) 822- | 手机 | Annapolis | Sprint Spectrum L.p. |
| (443) 823- | 手机 | Towson | Cellco Partnership DBA Verizon Wireless |
| (443) 824- | 手机 | Towson | Omnipoint Communications Cap Operations |
| (443) 825- | 手机 | Baltimore | Omnipoint Communications Cap Operations |
| (443) 826- | 手机 | Baltimore | Cellco Partnership DBA Verizon Wireless |
| (443) 827- | 手机 | Baltimore | Cellco Partnership DBA Verizon Wireless |
| (443) 828- | 固话 | Ellicott City | Cavalier Telephone Mid-atlantic |
| (443) 829- | 手机 | Baltimore | Sprint Spectrum L.p. |
| (443) 830- | 固话 | Catonsville | Cavalier Telephone Mid-atlantic |
| (443) 831- | 手机 | Baltimore | New Cingular Wireless PCS - DC |
| (443) 832- | 固话 | Baltimore | Level 3 Communications |
| (443) 833- | 固话 | Arbutus | Us Lec Of Maryland |
| (443) 834- | 固话 | Towson | Cavalier Telephone Mid-atlantic |
| (443) 835- | 手机 | Baltimore | Cellco Partnership DBA Verizon Wireless |
| (443) 836- | 固话 | Baltimore | Xo Maryland |
| (443) 837- | 固话 | Annapolis | Us Lec Of Maryland |
| (443) 838- | 手机 | Baltimore | New Cingular Wireless PCS - DC |
| (443) 839- | 手机 | Baltimore | Omnipoint Communications Cap Operations |
| (443) 840- | 手机 | Catonsville | New Cingular Wireless PCS - DC |
| (443) 841- | 固话 | Baltimore | Verizon Maryland |
| (443) 842- | 手机 | Baltimore | Cellco Partnership DBA Verizon Wireless |
| (443) 843- | 固话 | Havre De Grace | Verizon Maryland |
| (443) 844- | 手机 | Baltimore | Cellco Partnership DBA Verizon Wireless |
| (443) 845- | 手机 | Baltimore | Cellco Partnership DBA Verizon Wireless |
| (443) 846- | 固话 | Towson | New Cingular Wireless PCS - DC |
| (443) 847- | 手机 | Towson | Cellco Partnership DBA Verizon Wireless |
| (443) 848- | 固话 | Baltimore | Sprint Spectrum L.p. |
| (443) 849- | 固话 | Towson | Verizon Maryland |
| (443) 850- | 手机 | Baltimore | Omnipoint Communications Cap Operations |
| (443) 851- | 手机 | Catonsville | Omnipoint Communications Cap Operations |
| (443) 852- | 手机 | Annapolis | New Cingular Wireless PCS - DC |
| (443) 853- | 手机 | Baltimore | Cellco Partnership DBA Verizon Wireless |
| (443) 854- | 手机 | Baltimore | Omnipoint Communications Cap Operations |
| (443) 855- | 固话 | Aberdeen | Lightwave Communications |
| (443) 856- | 固话 | Ocean City | Core Communications |
| (443) 857- | 手机 | Baltimore | Omnipoint Communications Cap Operations |
| (443) 858- | 手机 | Baltimore | Omnipoint Communications Cap Operations |
| (443) 859- | 手机 | Salisbury | Omnipoint Communications Cap Operations |
| (443) 860- | 手机 | Catonsville | New Cingular Wireless PCS - DC |
| (443) 861- | 固话 | Aberdeen | Verizon Maryland |
| (443) 862- | 手机 | Towson | Cellco Partnership DBA Verizon Wireless |
| (443) 863- | 手机 | Baltimore | Cellco Partnership DBA Verizon Wireless |
| (443) 864- | 手机 | Columbia | Sprint Spectrum L.p. |
| (443) 865- | 手机 | Baltimore | Sprint Spectrum L.p. |
| (443) 866- | 手机 | Bel Air | Sprint Spectrum L.p. |
| (443) 867- | 固话 | Glen Burnie | Paetec Communications |
| (443) 868- | 固话 | Baltimore | Verizon Maryland |
| (443) 869- | 手机 | Baltimore | Cellco Partnership DBA Verizon Wireless |
| (443) 870- | 固话 | Pikesville | Tw Telecom Of Maryland LLC |
| (443) 871- | 手机 | Annapolis | Sprint Spectrum L.p. |
| (443) 872- | 固话 | Baltimore | Cavalier Telephone Mid-atlantic |
| (443) 873- | 固话 | Pikesville | Broadvox-clec |
| (443) 874- | 固话 | Baltimore | Cavalier Telephone Mid-atlantic |
| (443) 875- | 固话 | Annapolis | New Cingular Wireless PCS - DC |
| (443) 876- | 固话 | Bel Air | Sprint Spectrum L.p. |
| (443) 877- | 固话 | North East | Level 3 Communications |
| (443) 878- | 固话 | Baltimore | Cellco Partnership DBA Verizon Wireless |
| (443) 879- | 固话 | Baltimore | Verizon Maryland |
| (443) 880- | 固话 | Salisbury | AT&T Local |
| (443) 881- | 手机 | Reisterstown | Sprint Spectrum L.p. |
| (443) 882- | 手机 | Baltimore | Sprint Spectrum L.p. |
| (443) 883- | 固话 | Baltimore | AT&T Local |
| (443) 884- | 固话 | Baltimore | Cavalier Telephone Mid-atlantic |
| (443) 885- | 固话 | Baltimore | Verizon Maryland |
| (443) 886- | 固话 | Baltimore | AT&T Local |
| (443) 887- | 固话 | Harmans | Cavalier Telephone Mid-atlantic |
| (443) 888- | 固话 | Princess Anne | Cavalier Telephone (mid-atlantic) |
| (443) 889- | 手机 | Glen Burnie | Omnipoint Communications Cap Operations |
| (443) 890- | 手机 | Baltimore | Cellco Partnership DBA Verizon Wireless |
| (443) 891- | 固话 | Baltimore | Xo Maryland |
| (443) 892- | 固话 | New Windsor | Bandwidth.com Clec |
| (443) 893- | 固话 | Baltimore | Xo Maryland |
| (443) 894- | 手机 | Baltimore | Sprint Spectrum L.p. |
| (443) 895- | 手机 | Towson | Cellco Partnership DBA Verizon Wireless |
| (443) 896- | 固话 | Baltimore | AT&T Local |
| (443) 897- | 手机 | Baltimore | Leap Wireless Intl DBA Cricket Comm |
| (443) 898- | 固话 | Pikesville | Level 3 Communications |
| (443) 899- | 固话 | Elkridge | Broadwing Communications. LLC |
| (443) 900- | 手机 | Towson | Cellco Partnership DBA Verizon Wireless |
| (443) 901- | 固话 | Towson | Cavalier Telephone Mid-atlantic |
| (443) 902- | 手机 | Baltimore | Cellco Partnership DBA Verizon Wireless |
| (443) 903- | 手机 | Bel Air | Cellco Partnership DBA Verizon Wireless |
| (443) 904- | 手机 | Baltimore | Cellco Partnership DBA Verizon Wireless |
| (443) 905- | 手机 | Annapolis | Sprint Spectrum L.p. |
| (443) 906- | 固话 | Severna Park | Peerless Network Of Maryland |
| (443) 907- | 手机 | Elkton | Cellco Partnership DBA Verizon Wireless |
| (443) 908- | 手机 | Baltimore | Cellco Partnership DBA Verizon Wireless |
| (443) 909- | 手机 | Baltimore | Cellco Partnership DBA Verizon Wireless |
| (443) 910- | 手机 | Bel Air | New Cingular Wireless PCS - DC |
| (443) 912- | 固话 | Towson | Core Communications |
| (443) 913- | 手机 | Baltimore | Sprint Spectrum L.p. |
| (443) 914- | 固话 | Reisterstown | Teleport Communications America |
| (443) 915- | 手机 | Baltimore | Cellco Partnership DBA Verizon Wireless |
| (443) 916- | 手机 | Baltimore | Sprint Spectrum L.p. |
| (443) 917- | 手机 | Columbia | Broadvox-clec |
| (443) 918- | 固话 | Taneytown | Teleport Communications America |
| (443) 919- | 固话 | Baltimore | Cavalier Telephone Mid-atlantic |
| (443) 920- | 固话 | Sykesville | Teleport Communications America |
| (443) 921- | 固话 | Baltimore | Paetec Communications |
| (443) 922- | 固话 | Edgewood | Atx Telecommunications Services, Ltd |
| (443) 923- | 固话 | Baltimore | Cavalier Telephone Mid-atlantic |
| (443) 924- | 手机 | Annapolis | Cellco Partnership DBA Verizon Wireless |
| (443) 925- | 手机 | Baltimore | Omnipoint Communications Cap Operations |
| (443) 926- | 固话 | Annapolis | Broadwing Communications. LLC |
| (443) 927- | 固话 | Baltimore | Broadwing Communications. LLC |
| (443) 928- | 手机 | Baltimore | Cellco Partnership DBA Verizon Wireless |
| (443) 929- | 手机 | Pikesville | Omnipoint Communications Cap Operations |
| (443) 930- | 手机 | Baltimore | Cellco Partnership DBA Verizon Wireless |
| (443) 931- | 固话 | Baltimore | Mci Worldcom Communications |
| (443) 932- | 手机 | Baltimore | Sprint Spectrum L.p. |
| (443) 933- | 固话 | Cockeysville | Teleport Communications America |
| (443) 934- | 手机 | Baltimore | Cellco Partnership DBA Verizon Wireless |
| (443) 935- | 手机 | Towson | New Cingular Wireless PCS - DC |
| (443) 937- | 固话 | Union Bridge | Teleport Communications America |
| (443) 938- | 手机 | Baltimore | Cellco Partnership DBA Verizon Wireless |
| (443) 939- | 手机 | Baltimore | Omnipoint Communications Cap Operations |
| (443) 940- | 固话 | Pikesville | Cavalier Telephone Mid-atlantic |
| (443) 941- | 手机 | Elkton | New Cingular Wireless PCS - DC |
| (443) 942- | 固话 | Severna Park | Teleport Communications America |
| (443) 943- | 固话 | Baltimore | Teleport Communications America |
| (443) 944- | 固话 | Salisbury | Comcast Phone Of Northern Maryland |
| (443) 945- | 手机 | Elkton | New Cingular Wireless PCS - DC |
| (443) 946- | 固话 | Parkville | Xo Maryland |
| (443) 947- | 固话 | Perryville | Ctc Communications Corp. |
| (443) 948- | 手机 | Baltimore | Sprint Spectrum L.p. |
| (443) 949- | 固话 | Annapolis | Comcast Phone Of Northern Maryland |
| (443) 951- | 固话 | Annapolis | Global Crossing Local Services-md |
| (443) 952- | 手机 | Westminster | Cellco Partnership DBA Verizon Wireless |
| (443) 953- | 手机 | Salisbury | Cellco Partnership DBA Verizon Wireless |
| (443) 954- | 固话 | Baltimore | Paetec Communications |
| (443) 955- | 手机 | Baltimore | Cellco Partnership DBA Verizon Wireless |
| (443) 956- | 手机 | Baltimore | New Cingular Wireless PCS - DC |
| (443) 957- | 固话 | Baltimore | AT&T Local |
| (443) 960- | 手机 | Glen Burnie | Cellco Partnership DBA Verizon Wireless |
| (443) 962- | 手机 | Glen Burnie | Cellco Partnership DBA Verizon Wireless |
| (443) 963- | 手机 | Baltimore | Halo Wireless Services |
| (443) 964- | 固话 | North Beach | Level 3 Communications |
| (443) 965- | 手机 | Baltimore | Sprint Spectrum L.p. |
| (443) 966- | 手机 | Fallston | Cellco Partnership DBA Verizon Wireless |
| (443) 967- | 固话 | North East | Verizon Maryland |
| (443) 968- | 手机 | Prince Frederick | New Cingular Wireless PCS - DC |
| (443) 969- | 固话 | Essex | Cavalier Telephone Mid-atlantic |
| (443) 970- | 手机 | Baltimore | Cellco Partnership DBA Verizon Wireless |
| (443) 971- | 固话 | Taneytown | Bandwidth.com Clec |
| (443) 972- | 手机 | Cambridge | Us Lec Of Maryland |
| (443) 973- | 固话 | Baltimore | Xo Maryland |
| (443) 974- | 固话 | Westminster | Teleport Communications America |
| (443) 975- | 手机 | Prince Frederick | New Cingular Wireless PCS - DC |
| (443) 976- | Unknown | Baltimore-washington Telephone (bwt) | |
| (443) 977- | 手机 | Baltimore | Cellco Partnership DBA Verizon Wireless |
| (443) 978- | 手机 | Salisbury | Cellco Partnership DBA Verizon Wireless |
| (443) 979- | 手机 | Columbia | Cellco Partnership DBA Verizon Wireless |
| (443) 980- | 手机 | Catonsville | New Cingular Wireless PCS - DC |
| (443) 981- | 手机 | Fallston | Cellco Partnership DBA Verizon Wireless |
| (443) 982- | 固话 | Baltimore | Ymax Communications Corp. |
| (443) 983- | 手机 | Baltimore | Omnipoint Communications Cap Operations |
| (443) 984- | 固话 | Baltimore | Verizon Maryland |
| (443) 985- | 手机 | Randallstown | Omnipoint Communications Cap Operations |
| (443) 986- | 手机 | Baltimore | Cellco Partnership DBA Verizon Wireless |
| (443) 987- | 固话 | Bel Air | AT&T Local |
| (443) 988- | 固话 | Centreville | Level 3 Communications |
| (443) 989- | 固话 | Glen Burnie | Cavalier Telephone Mid-atlantic |
| (443) 990- | 固话 | Baltimore | Bandwidth.com Clec |
| (443) 991- | 手机 | Towson | Cellco Partnership DBA Verizon Wireless |
| (443) 992- | 固话 | Baltimore | Level 3 Communications |
| (443) 993- | 手机 | Elkton | Metro PCS |
| (443) 994- | 手机 | Annapolis | New Cingular Wireless PCS - DC |
| (443) 995- | 手机 | Annapolis | New Cingular Wireless PCS - DC |
| (443) 996- | 手机 | Catonsville | New Cingular Wireless PCS - DC |
| (443) 997- | 固话 | Baltimore | Verizon Maryland |
| (443) 998- | 固话 | Parkville | Verizon Maryland |
友情提示：拨打长途电话的办法很多，可以使用各通信运营商（包括中国电信、中国移动、中国联通等）固定电话、移动手机或者上网电脑来实现通话功能，固定电话、移动手机可以直接拨打对方号码也可以通过IP电话（又名VoIP电话、网络电话）拨打，上网电脑可以免费与对方上网电脑通话也可以低价拨打对方固定电话、移动手机，请根据各自情况综合考虑选用。
问题报告： 本站尽力为您提供最全面、仔细、准确的长途电话区号、手机号段归属、电话号码查询信息，但因为各个地区的合并、增加、撤销、变更以及电话号码方案变更、升位还有地名的多样性等问题，难以避免出现错误或者过时信息，非常欢迎大家在使用中报告发现的问题或者告知更新内容。请直接在下面留言，本站核实后会马上进行修改，以便对以后的浏览者有更好的帮助，非常感谢！
