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Home / Area 303
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Ad Unit
Place a vertical ad here.| Prefix | City | Company | Line type | Open |
|---|---|---|---|---|
| 504 | Denver | Qwest Corporation | Landline | View |
| 505 | Englewood | Sprint Spectrum L.p. | Wireless | View |
| 506 | Denver | New Cingular Wireless Pcs Llc | Wireless | View |
| 507 | Englewood | Sprint Spectrum L.p. | Wireless | View |
| 508 | Denver | American Messaging (am) Inc. | Landline | View |
| 509 | Denver | American Messaging (am) Inc. | Landline | View |
| 510 | Denver | American Messaging (am) Inc. | Landline | View |
| 512 | Denver | Qwest Corporation | Landline | View |
| 513 | Denver | New Cingular Wireless Pcs Llc | Wireless | View |
| 514 | Englewood | Cellco Partnership Dba Verizon Wireless - Co | Wireless | View |
| 515 | Denver | 360networks (usa) Inc. - Co | Landline | View |
| 516 | Boulder | Qwest Corporation | Landline | View |
| 517 | Denver | New Cingular Wireless Pcs Llc | Wireless | View |
| 518 | Aurora | Cellco Partnership Dba Verizon Wireless - Co | Wireless | View |
| 519 | Aurora | Cellco Partnership Dba Verizon Wireless - Co | Wireless | View |
| 520 | Englewood | Sprint Spectrum L.p. | Wireless | View |
| 521 | Englewood | Sprint Spectrum L.p. | Wireless | View |
| 522 | Englewood | Sprint Spectrum L.p. | Wireless | View |
| 523 | Denver | T-mobile Usa Inc. | Wireless | View |
| 524 | Aurora | Teleport Communications America Llc - Co | Landline | View |
| 525 | Englewood | Sprint Spectrum L.p. | Wireless | View |
| 526 | Golden | Qwest Corporation | Landline | View |
| 527 | Boulder | Qwest Corporation | Landline | View |
| 528 | Denver | American Messaging (am) Inc. | Landline | View |
| 529 | Denver | Usa Mobility Wireless Inc. | Wireless | View |
| 530 | Boulder | Qwest Corporation | Landline | View |
| 531 | Denver | Mcimetro Access Transmission Services Llc | Landline | View |
| 532 | Denver | Mcleodusa Telecommunications Services Inc.- Co | Landline | View |
| 533 | Broomfield | Qwest Corporation | Landline | View |
| 534 | Denver | Qwest Corporation | Landline | View |
| 535 | Denver | Cbeyond Communications Llc - Co | Landline | View |
| 536 | Hudson | Qwest Corporation | Landline | View |
| 537 | Aurora | Teleport Communications America Llc - Co | Landline | View |
| 538 | Denver | Qwest Corporation | Landline | View |
| 539 | Englewood | Xo Colorado Llc | Landline | View |
| 540 | Denver | Usa Mobility Wireless Inc. | Wireless | View |
| 541 | Boulder | Qwest Corporation | Landline | View |
| 542 | Denver | Mcimetro Access Transmission Services Llc | Landline | View |
| 543 | Boulder | Qwest Corporation | Landline | View |
| 544 | Boulder | Qwest Corporation | Landline | View |
| 545 | Boulder | Qwest Corporation | Landline | View |
| 546 | Boulder | Qwest Corporation | Landline | View |
| 547 | Denver | Global Crossing Local Services Inc.-co | Landline | View |
| 548 | Englewood | Cellco Partnership Dba Verizon Wireless - Co | Wireless | View |
| 549 | Englewood | Cellco Partnership Dba Verizon Wireless - Co | Wireless | View |
| 550 | Westminster | Cellco Partnership Dba Verizon Wireless - Co | Wireless | View |
| 551 | Englewood | Mcimetro Access Transmission Services Llc | Landline | View |
| 552 | Denver | Global Crossing Local Services Inc.-co | Landline | View |
| 553 | Denver | Usa Mobility Wireless Inc. | Wireless | View |
| 554 | Boulder | Qwest Corporation | Landline | View |
| 556 | Denver | Qwest Corporation | Landline | View |
| 557 | Denver | Global Crossing Local Services Inc.-co | Landline | View |
| 558 | Denver | Global Crossing Local Services Inc.-co | Landline | View |
| 559 | Denver | American Messaging (am) Inc. | Landline | View |
| 560 | Denver | Usa Mobility Wireless Inc. | Wireless | View |
| 561 | Denver | Qwest Corporation | Landline | View |
| 562 | Denver | Global Crossing Local Services Inc.-co | Landline | View |
| 563 | Denver | Icg Telecom Group - Co | Landline | View |
| 564 | Denver | T-mobile Usa Inc. | Wireless | View |
| 565 | Denver | Cbeyond Communications Llc - Co | Landline | View |
| 566 | Denver | Mcimetro Access Transmission Services Llc | Landline | View |
| 567 | Idaho Springs | Qwest Corporation | Landline | View |
| 568 | Aurora | Teleport Communications America Llc - Co | Landline | View |
| 569 | Georgetown | Qwest Corporation | Landline | View |
| 570 | Denver | New Cingular Wireless Pcs Llc | Wireless | View |
| 571 | Denver | Qwest Corporation | Landline | View |
| 572 | Denver | Qwest Corporation | Landline | View |
| 573 | Denver | Qwest Corporation | Landline | View |
| 574 | Denver | Qwest Corporation | Landline | View |
| 575 | Denver | Qwest Corporation | Landline | View |
| 576 | Denver | Qwest Corporation | Landline | View |
| 577 | Denver | Eschelon Telecom Of Colorado Inc. - Co | Landline | View |
| 578 | Denver | Level 3 Communications Llc - Co | Landline | View |
| 579 | Westminster | Cellco Partnership Dba Verizon Wireless - Co | Wireless | View |
| 580 | Denver | American Messaging (am) Inc. | Landline | View |
| 581 | Boulder | Qwest Corporation | Landline | View |
| 582 | Central City | Qwest Corporation | Landline | View |
| 583 | Aurora | Teleport Communications America Llc - Co | Landline | View |
| 584 | Denver | Qwest Corporation | Landline | View |
| 585 | Denver | Qwest Corporation | Landline | View |
| 586 | Denver | 4dvision Llc - Co | Landline | View |
| 587 | Englewood | Sprint Spectrum L.p. | Wireless | View |
| 588 | Denver | New Cingular Wireless Pcs Llc | Wireless | View |
| 589 | Denver | New Cingular Wireless Pcs Llc | Wireless | View |
| 590 | Denver | Icg Telecom Group - Co | Landline | View |
| 591 | Englewood | Sprint Spectrum L.p. | Wireless | View |
| 592 | Denver | Qwest Corporation | Landline | View |
| 593 | Aurora | Teleport Communications America Llc - Co | Landline | View |
| 594 | Englewood | Cellco Partnership Dba Verizon Wireless - Co | Wireless | View |
| 595 | Denver | Qwest Corporation | Landline | View |
| 596 | Englewood | Sprint Spectrum L.p. | Wireless | View |
| 597 | Denver | Eschelon Telecom Of Colorado Inc. - Co | Landline | View |
| 598 | Englewood | Sprint Spectrum L.p. | Wireless | View |
| 599 | Denver | Usa Mobility Wireless Inc. | Wireless | View |
| 600 | Aurora | Teleport Communications America Llc - Co | Landline | View |
| 601 | Denver | New Cingular Wireless Pcs Llc | Wireless | View |
| 602 | Denver | Qwest Corporation | Landline | View |
| 603 | Denver | Qwest Corporation | Landline | View |
| 604 | Lafayette | Qwest Corporation | Landline | View |
| 605 | Denver | Qwest Corporation | Landline | View |
Page Overview
This page provides detailed information and helpful insights related to your search. All data is based on telecom assignment records and community user reports. Use the navigation above to explore related area codes, prefixes, and reported numbers.
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