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Ad Unit
Place a vertical ad here.| Prefix | City | Company | Line type | Open |
|---|---|---|---|---|
| 505 | Baltimore | Global Crossing Local Services Inc.-md | Landline | View |
| 506 | Hanover | Sprint Spectrum L.p. | Wireless | View |
| 507 | Baltimore | Teleport Communications America Llc - Md | Landline | View |
| 508 | Hanover | Cavalier Telephone Mid-atlantic Llc - Md | Landline | View |
| 509 | Halethorpe | Cellco Partnership Dba Verizon Wireless - Md | Wireless | View |
| 510 | Windsor Mill | Cellco Partnership Dba Verizon Wireless - Md | Wireless | View |
| 512 | Bel Air | Verizon Maryland Inc. | Landline | View |
| 513 | Salisbury | New Cingular Wireless Pcs Llc - Dc | Wireless | View |
| 514 | Columbia | Us Lec Of Maryland Inc. | Landline | View |
| 515 | Salisbury | Cellco Partnership Dba Verizon Wireless - Md | Wireless | View |
| 516 | Baltimore | Global Crossing Local Services Inc.-md | Landline | View |
| 517 | Baltimore | Global Crossing Local Services Inc.-md | Landline | View |
| 518 | Columbia | Verizon Maryland Inc. | Landline | View |
| 519 | Columbia | Global Crossing Local Services Inc.-md | Landline | View |
| 520 | Columbia | New Cingular Wireless Pcs Llc - Dc | Wireless | View |
| 521 | Salisbury | Cellco Partnership Dba Verizon Wireless - Md | Wireless | View |
| 522 | Baltimore | Paetec Communications Inc. - Md | Landline | View |
| 523 | Salisbury | Verizon Maryland Inc. | Landline | View |
| 524 | Baltimore | Allegiance Telecom Inc. - Md | Landline | View |
| 525 | Halethorpe | Leap Wireless Intl Inc. Dba Cricket Comm Inc. | Wireless | View |
| 526 | Baltimore | Global Naps South Inc. - Md | Landline | View |
| 527 | Baltimore | Omnipoint Communications Cap Operations Llc | Wireless | View |
| 528 | Hanover | Sprint Spectrum L.p. | Wireless | View |
| 529 | Baltimore | Omnipoint Communications Cap Operations Llc | Wireless | View |
| 530 | Baltimore | Paetec Communications Inc. - Md | Landline | View |
| 531 | Halethorpe | Leap Wireless Intl Inc. Dba Cricket Comm Inc. | Wireless | View |
| 532 | Hanover | Sprint Spectrum L.p. | Wireless | View |
| 533 | Baltimore | Teleport Communications America Llc - Md | Landline | View |
| 534 | Windsor Mill | Cellco Partnership Dba Verizon Wireless - Md | Wireless | View |
| 535 | Clarksville | Verizon Maryland Inc. | Landline | View |
| 536 | Hanover | Sprint Spectrum L.p. | Wireless | View |
| 537 | Baltimore | Verizon Maryland Inc. | Landline | View |
| 538 | Baltimore | Omnipoint Communications Cap Operations Llc | Wireless | View |
| 539 | Columbia | Us Lec Of Maryland Inc. | Landline | View |
| 540 | Columbia | New Cingular Wireless Pcs Llc - Dc | Wireless | View |
| 541 | Baltimore | Paetec Communications Inc. - Md | Landline | View |
| 542 | Nottingham | Comcast Phone Of Northern Maryland Inc. - Md | Landline | View |
| 543 | Baltimore | Verizon Maryland Inc. | Landline | View |
| 544 | Hanover | Cavalier Telephone Mid-atlantic Llc - Md | Landline | View |
| 545 | Baltimore | Broadwing Communications. Llc - Md | Landline | View |
| 546 | Baltimore | Verizon Maryland Inc. | Landline | View |
| 547 | Windsor Mill | Cellco Partnership Dba Verizon Wireless - Md | Wireless | View |
| 548 | Baltimore | Allegiance Telecom Inc. - Md | Landline | View |
| 549 | Columbia | Us Lec Of Maryland Inc. | Landline | View |
| 550 | Baltimore | Level 3 Communications Llc - Md | Landline | View |
| 551 | Baltimore | Level 3 Communications Llc - Md | Landline | View |
| 552 | Baltimore | Verizon Maryland Inc. | Landline | View |
| 553 | North East | Cellco Partnership Dba Verizon Wireless - Md | Wireless | View |
| 554 | Baltimore | Omnipoint Communications Cap Operations Llc | Wireless | View |
| 556 | Cockeysville | Verizon Maryland Inc. | Landline | View |
| 557 | Baltimore | Allegiance Telecom Inc. - Md | Landline | View |
| 558 | Baltimore | Xo Maryland Llc | Landline | View |
| 559 | Nottingham | Comcast Phone Of Northern Maryland Inc. - Md | Landline | View |
| 560 | Hanover | Sprint Spectrum L.p. | Wireless | View |
| 561 | Columbia | Us Lec Of Maryland Inc. | Landline | View |
| 562 | Columbia | New Cingular Wireless Pcs Llc - Dc | Wireless | View |
| 563 | Hanover | Sprint Spectrum L.p. | Wireless | View |
| 564 | Columbia | Level 3 Communications Llc - Md | Landline | View |
| 565 | Hanover | Cavalier Telephone Mid-atlantic Llc - Md | Landline | View |
| 566 | Chesapeake City | Cellco Partnership Dba Verizon Wireless - Md | Wireless | View |
| 567 | Columbia | Level 3 Communications Llc - Md | Landline | View |
| 568 | Baltimore | Allegiance Telecom Inc. - Md | Landline | View |
| 569 | Baltimore | Level 3 Communications Llc - Md | Landline | View |
| 570 | Baltimore | Omnipoint Communications Cap Operations Llc | Wireless | View |
| 571 | Windsor Mill | Cellco Partnership Dba Verizon Wireless - Md | Wireless | View |
| 572 | Glen Burnie | Verizon Maryland Inc. | Landline | View |
| 573 | Columbia | Us Lec Of Maryland Inc. | Landline | View |
| 574 | Columbia | Us Lec Of Maryland Inc. | Landline | View |
| 575 | Hanover | Cavalier Telephone Mid-atlantic Llc - Md | Landline | View |
| 576 | Baltimore | Allegiance Telecom Inc. - Md | Landline | View |
| 577 | Columbia | Us Lec Of Maryland Inc. | Landline | View |
| 578 | Baltimore | Xo Maryland Llc | Landline | View |
| 579 | Columbia | Us Lec Of Maryland Inc. | Landline | View |
| 580 | Hanover | Sprint Spectrum L.p. | Wireless | View |
| 581 | Baltimore | Global Naps South Inc. - Md | Landline | View |
| 582 | Baltimore | Global Naps South Inc. - Md | Landline | View |
| 583 | Baltimore | Global Naps South Inc. - Md | Landline | View |
| 584 | Baltimore | Global Naps South Inc. - Md | Landline | View |
| 585 | Baltimore | Global Naps South Inc. - Md | Landline | View |
| 586 | Baltimore | Global Naps South Inc. - Md | Landline | View |
| 587 | Baltimore | Global Naps South Inc. - Md | Landline | View |
| 588 | Baltimore | Allegiance Telecom Inc. - Md | Landline | View |
| 589 | Columbia | Us Lec Of Maryland Inc. | Landline | View |
| 590 | Baltimore | Global Crossing Local Services Inc.-md | Landline | View |
| 591 | Windsor Mill | Cellco Partnership Dba Verizon Wireless - Md | Wireless | View |
| 592 | Baltimore | Global Naps South Inc. - Md | Landline | View |
| 593 | Baltimore | Global Naps South Inc. - Md | Landline | View |
| 594 | Baltimore | Global Crossing Local Services Inc.-md | Landline | View |
| 595 | Baltimore | Global Crossing Local Services Inc.-md | Landline | View |
| 596 | Baltimore | Global Naps South Inc. - Md | Landline | View |
| 597 | Hanover | Global Crossing Local Services Inc.-md | Landline | View |
| 598 | Baltimore | Global Crossing Local Services Inc.-md | Landline | View |
| 599 | Baltimore | Global Crossing Local Services Inc.-md | Landline | View |
| 600 | Baltimore | Omnipoint Communications Cap Operations Llc | Wireless | View |
| 601 | Baltimore | Global Naps South Inc. - Md | Landline | View |
| 602 | Windsor Mill | Cellco Partnership Dba Verizon Wireless - Md | Wireless | View |
| 603 | Columbia | Paetec Communications Inc. - Md | Landline | View |
| 604 | Windsor Mill | Cellco Partnership Dba Verizon Wireless - Md | Wireless | View |
| 605 | Windsor Mill | Cavalier Telephone Mid-atlantic Llc - Md | Landline | View |
| 606 | Baltimore | Global Naps South Inc. - Md | 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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