| Код | Страна | Регион | Город | Оператор |
|---|---|---|---|---|
| +1 203 401 | США | New Haven | New Haven, CT | Southern New England Telephone Co, Landline |
| +1 203 402 | США | Fairfield | Huntington, CT | Southern New England Telephone Co, Landline |
| +1 203 403 | США | Fairfield | Ridgefield, CT | Teleport Communications Group - New York, Landline |
| +1 203 404 | США | New Haven | New Haven, CT | Broadwing Communications, Landline |
| +1 203 405 | США | Litchfield | Woodbury, CT | Paetec Communications, Landline |
| +1 203 406 | США | Fairfield | Stamford, CT | Southern New England Telephone Co, Landline |
| +1 203 407 | США | New Haven | New Haven, CT | Southern New England Telephone Co, Landline |
| +1 203 408 | США | Fairfield | Redding, CT | AT&T Local, Landline |
| +1 203 409 | США | Fairfield | Old Greenwich, CT | Teleport Communications Group - New York, Landline |
| +1 203 410 | США | New Haven | New Haven, CT | Nextel Communications, Cell Number |
| +1 203 412 | США | New Haven | New Haven, CT | American Messaging (am), Cell Number |
| +1 203 413 | США | Fairfield | Greenwich, CT | Paetec Communications - NY, Landline |
| +1 203 414 | США | Fairfield | Bridgeport, CT | New Cingular Wireless PCS - DC, Cell Number |
| +1 203 415 | США | New Haven | New Haven, CT | New Cingular Wireless PCS - DC, Cell Number |
| +1 203 416 | США | Fairfield | Bridgeport, CT | Southern New England Telephone Co, Landline |
| +1 203 417 | США | Fairfield | Danbury, CT | New Cingular Wireless PCS - DC, Cell Number |
| +1 203 418 | США | Fairfield | Fairfield, CT | Teleport Communications Group - New York, Landline |
| +1 203 419 | США | New Haven | Waterbury, CT | Southern New England Telephone Co, Landline |
| +1 203 420 | США | New Haven | Meriden, CT | Southern New England Telephone Co, Landline |
| +1 203 421 | США | New Haven | Madison, CT | Southern New England Telephone Co, Landline |
| +1 203 422 | США | Fairfield | Greenwich, CT | Verizon New York, Landline |
| +1 203 423 | США | Fairfield | Wilton, CT | Teleport Communications Group - New York, Landline |
| +1 203 424 | США | Fairfield | Danbury, CT | Sprint Spectrum L.p, Cell Number |
| +1 203 425 | США | Fairfield | Stamford, CT | Southern New England Telephone Co, Landline |
| +1 203 426 | США | Fairfield | Newtown, CT | Southern New England Telephone Co, Landline |
| +1 203 427 | США | New Haven | Meriden, CT | Mcimetro Access Transmission Services LLC, Landline |
| +1 203 428 | США | Fairfield | Stamford, CT | Brooks Fiber Communications Of Connecticut Inc-ct, Landline |
| +1 203 429 | США | Fairfield | Stamford, CT | Brooks Fiber Communications Of Connecticut Inc-ct, Landline |
| +1 203 430 | США | New Haven | New Haven, CT | New Cingular Wireless PCS - DC, Cell Number |
| +1 203 431 | США | Fairfield | Ridgefield, CT | Southern New England Telephone Co, Landline |
| +1 203 432 | США | New Haven | New Haven, CT | Southern New England Telephone Co, Landline |
| +1 203 433 | США | New Haven | Branford, CT | Comcast Phone Of Connecticut, Landline |
| +1 203 434 | США | Fairfield | Norwalk, CT | Omnipoint Communications, Cell Number |
| +1 203 435 | США | New Haven | New Haven, CT | Omnipoint Communications, Cell Number |
| +1 203 436 | США | New Haven | New Haven, CT | Southern New England Telephone Co, Landline |
| +1 203 437 | США | New Haven | Waterbury, CT | Brooks Fiber Communications Of Connecticut Inc-ct, Landline |
| +1 203 438 | США | Fairfield | Ridgefield, CT | Southern New England Telephone Co, Landline |
| +1 203 439 | США | New Haven | Cheshire, CT | Cox Connecticut Telecom, Landline |
| +1 203 440 | США | New Haven | Meriden, CT | Cox Connecticut Telecom, Landline |
| +1 203 441 | США | New Haven | Wolcott, CT | Teleport Communications Group - New York, Landline |
| +1 203 442 | США | Fairfield | New Canaan, CT | Teleport Communications Group - New York, Landline |
| +1 203 443 | США | New Haven | Meriden, CT | Brooks Fiber Communications Of Connecticut Inc-ct, Landline |
| +1 203 444 | США | New Haven | New Haven, CT | New Cingular Wireless PCS - DC, Cell Number |
| +1 203 445 | США | Fairfield | Trumbull, CT | Southern New England Telephone Co, Landline |
| +1 203 446 | США | New Haven | Derby, CT | Teleport Communications Group - New York, Landline |
| +1 203 447 | США | Fairfield | Huntington, CT | Teleport Communications Group - New York, Landline |
| +1 203 448 | США | Fairfield | Danbury, CT | Brooks Fiber Communications Of Connecticut Inc-ct, Landline |
| +1 203 449 | США | Fairfield | Bridgeport, CT | Sprint Spectrum L.p, Cell Number |
| +1 203 450 | США | Bridgeport, CT | Cellco Partnership DBA Verizon Wireless | |
| +1 203 451 | США | Fairfield | Westport, CT | New Cingular Wireless PCS - DC, Landline |
| +1 203 452 | США | Fairfield | Trumbull, CT | Southern New England Telephone Co, Landline |
| +1 203 453 | США | New Haven | Guilford, CT | Southern New England Telephone Co, Landline |
| +1 203 454 | США | Fairfield | Westport, CT | Southern New England Telephone Co, Landline |
| +1 203 455 | США | Fairfield | Bridgeport, CT | Brooks Fiber Communications Of Connecticut Inc-ct, Landline |
| +1 203 456 | США | New Haven | Meriden, CT | Usa Mobility Wireless, Cell Number |
| +1 203 457 | США | New Haven | Guilford, CT | Southern New England Telephone Co, Landline |
| +1 203 458 | США | New Haven | Guilford, CT | Southern New England Telephone Co, Landline |
| +1 203 459 | США | Fairfield | Trumbull, CT | Southern New England Telephone Co, Landline |
| +1 203 460 | США | Fairfield | Danbury, CT | AT&T Local, Landline |
| +1 203 461 | США | Fairfield | Stamford, CT | Southern New England Telephone Co, Landline |
| +1 203 462 | США | Fairfield | Stamford, CT | Southern New England Telephone Co, Landline |
| +1 203 463 | США | New Haven | Seymour, CT | Teleport Communications Group - New York, Landline |
| +1 203 464 | США | New Haven | New Haven, CT | Cellco Partnership DBA Verizon Wireless, Cell Number |
| +1 203 465 | США | New Haven | Waterbury, CT | Southern New England Telephone Co, Landline |
| +1 203 466 | США | New Haven | New Haven, CT | Southern New England Telephone Co, Landline |
| +1 203 467 | США | New Haven | New Haven, CT | Southern New England Telephone Co, Landline |
| +1 203 468 | США | New Haven | New Haven, CT | Southern New England Telephone Co, Landline |
| +1 203 469 | США | New Haven | New Haven, CT | Southern New England Telephone Co, Landline |
| +1 203 470 | США | Fairfield | Danbury, CT | Cellco Partnership DBA Verizon Wireless, Cell Number |
| +1 203 477 | США | New Haven | New Haven, CT | Usa Mobility Wireless, Cell Number |
| +1 203 479 | США | New Haven | New Haven, CT | Southern New England Telephone Co, Landline |
| +1 203 480 | США | Fairfield | Fairfield, CT | Brooks Fiber Communications Of Connecticut Inc-ct, Landline |
| +1 203 481 | США | New Haven | Branford, CT | Southern New England Telephone Co, Landline |
| +1 203 482 | США | Fairfield | Danbury, CT | New Cingular Wireless PCS - DC, Cell Number |
| +1 203 483 | США | New Haven | Branford, CT | Southern New England Telephone Co, Landline |
| +1 203 484 | США | New Haven | Northford, CT | Southern New England Telephone Co, Landline |
| +1 203 485 | США | Fairfield | Greenwich, CT | Cablevision Lightpath, Landline |
| +1 203 486 | США | New Haven | Southbury, CT | Southern New England Telephone Co, Landline |
| +1 203 487 | США | Fairfield | Stamford, CT | Global Crossing Local Services-ct, Landline |
| +1 203 488 | США | New Haven | Branford, CT | Southern New England Telephone Co, Landline |
| +1 203 489 | США | Fairfield | Norwalk, CT | Cablevision Lightpath, Cell Number |
| +1 203 490 | США | New Haven | Naugatuck, CT | Teleport Communications Group - New York, Landline |
| +1 203 491 | США | New Haven | Newtown, CT | Bandwidth.com Clec, Cell Number |
| +1 203 492 | США | New Haven | New Haven, CT | Southern New England Telephone Co, Landline |
| +1 203 493 | США | Fairfield | Redding, CT | Level 3 Communications, Landline |
| +1 203 494 | США | New Haven | New Haven, CT | Cellco Partnership DBA Verizon Wireless, Cell Number |
| +1 203 495 | США | New Haven | New Haven, CT | Southern New England Telephone Co, Landline |
| +1 203 496 | США | Fairfield | Greenwich, CT | Nextel Communications, Cell Number |
| +1 203 497 | США | New Haven | New Haven, CT | Southern New England Telephone Co, Landline |
| +1 203 498 | США | New Haven | New Haven, CT | Southern New England Telephone Co, Landline |
| +1 203 499 | США | New Haven | New Haven, CT | Southern New England Telephone Co, Landline |
| +1 203 500 | США | New Haven | New Haven, CT | New Cingular Wireless PCS - DC, Cell Number |
| +1 203 501 | США | New Haven | Danbury, CT | Cellco Partnership DBA Verizon Wireless, Cell Number |
| +1 203 502 | США | Fairfield | Bridgeport, CT | Southern New England Telephone Co, Landline |
| +1 203 503 | США | New Haven | New Haven, CT | Southern New England Telephone Co, Landline |
| +1 203 504 | США | Fairfield | Stamford, CT | Ctc Communications Corp, Landline |
| +1 203 505 | США | Fairfield | Norwalk, CT | Cellco Partnership DBA Verizon Wireless, Landline |
| +1 203 506 | США | New Haven | New Haven, CT | New Cingular Wireless PCS - DC, Cell Number |
| +1 203 507 | США | New Haven | New Haven, CT | Sprint Spectrum L.p, Cell Number |
| +1 203 508 | США | New Haven | New Haven, CT | Ctc Communications Corp, Landline |