NumberResearchRecent prefix assignments
355 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/19/2026
Which carriers received which NPA-NXX prefixes, and where. Assignments are initial assignments from NANPA records — because of number portability, the current serving carrier of individual numbers may differ. For finer-grained activity, see the thousands-block view above.
Most active assignees, last 30 days
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| Assigned | NPA-NXX | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|
| 919-476 | FRONTIER COMMUNICATIONS OF THE CAROLINAS INC. - NC | 4334 | DURHAM | NC | |
| 919-477 | FRONTIER COMMUNICATIONS OF THE CAROLINAS INC. - NC | 4334 | DURHAM | NC | |
| 919-478 | SUNCOM DBA T-MOBILE USA | 8645 | SANFORD | NC | |
| 919-479 | FRONTIER COMMUNICATIONS OF THE CAROLINAS INC. - NC | 4334 | DURHAM | NC | |
| 919-481 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | CARY | NC | |
| 919-483 | LEVEL 3 COMMUNICATIONS, LLC - NC | 3235 | DURHAM | NC | |
| 919-484 | FRONTIER COMMUNICATIONS OF THE CAROLINAS INC. - NC | 4334 | DURHAM | NC | |
| 919-485 | FRONTIER COMMUNICATIONS OF THE CAROLINAS INC. - NC | 4334 | DURHAM | NC | |
| 919-486 | FRONTIER COMMUNICATIONS OF THE CAROLINAS INC. - NC | 4334 | DURHAM | NC | |
| 919-487 | SPOK, INC. | 6630 | CHAPELHILL | NC | |
| 919-488 | PAETEC ITEL, LLC | 829J | WAKEFOREST | NC | |
| 919-489 | FRONTIER COMMUNICATIONS OF THE CAROLINAS INC. - NC | 4334 | DURHAM | NC | |
| 919-490 | FRONTIER COMMUNICATIONS OF THE CAROLINAS INC. - NC | 4334 | DURHAM | NC | |
| 919-491 | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | DURHAM | NC | |
| 919-493 | FRONTIER COMMUNICATIONS OF THE CAROLINAS INC. - NC | 4334 | DURHAM | NC | |
| 919-494 | BRIGHTSPEED OF EASTERN NORTH CAROLINA, LLC | 0470 | FRANKLINTN | NC | |
| 919-495 | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NC | 6324 | LOUISBURG | NC | |
| 919-496 | BRIGHTSPEED OF EASTERN NORTH CAROLINA, LLC | 0470 | LOUISBURG | NC | |
| 919-497 | BRIGHTSPEED OF EASTERN NORTH CAROLINA, LLC | 0470 | LOUISBURG | NC | |
| 919-498 | WINDSTREAM NORTH CAROLINA, INC. | 0476 | OLIVIA | NC | |
| 919-499 | WINDSTREAM NORTH CAROLINA, INC. | 0476 | OLIVIA | NC | |
| 919-501 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | RALEIGH | NC | |
| 919-505 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | RALEIGH | NC | |
| 919-506 | SPOK, INC. | 6630 | CHAPELHILL | NC | |
| 919-507 | SPOK, INC. | 6630 | RALEIGH | NC | |
| 919-508 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | RALEIGH | NC | |
| 919-509 | SPOK, INC. | 6630 | RALEIGH | NC | |
| 919-510 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | RALEIGH | NC | |
| 919-511 | MULTIPLE OCN LISTING | MULT | XXXXXXXXXX | NC | |
| 919-512 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | RALEIGH | NC | |
| 919-513 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | RALEIGH | NC | |
| 919-515 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | RALEIGH | NC | |
| 919-516 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | RALEIGH | NC | |
| 919-517 | FRONTIER COMMUNICATIONS OF THE CAROLINAS INC. - NC | 4334 | DURHAM | NC | |
| 919-518 | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | RALEIGH | NC | |
| 919-522 | SUNCOM DBA T-MOBILE USA | 8645 | RALEIGH | NC | |
| 919-523 | SUNCOM DBA T-MOBILE USA | 8645 | RALEIGH | NC | |
| 919-524 | SUNCOM DBA T-MOBILE USA | 8645 | RALEIGH | NC | |
| 919-528 | FRONTIER COMMUNICATIONS OF THE CAROLINAS INC. - NC | 4334 | CREEDMOOR | NC | |
| 919-529 | FRONTIER COMMUNICATIONS OF THE CAROLINAS INC. - NC | 4334 | CREEDMOOR | NC | |
| 919-530 | FRONTIER COMMUNICATIONS OF THE CAROLINAS INC. - NC | 4334 | DURHAM | NC | |
| 919-531 | LEVEL 3 TELECOM OF NORTH CAROLINA, LP - NC | 7555 | CARY | NC | |
| 919-534 | CENTURYLINK COMMUNICATIONS LLC - NC | 4809 | RALEIGH | NC | |
| 919-535 | CENTURYLINK COMMUNICATIONS LLC - NC | 4809 | CARY | NC | |
| 919-536 | CENTURYLINK COMMUNICATIONS LLC - NC | 4809 | DURHAM | NC | |
| 919-537 | CENTURYLINK COMMUNICATIONS LLC - NC | 4809 | CHAPELHILL | NC | |
| 919-538 | SUNCOM DBA T-MOBILE USA | 8645 | RALEIGH | NC | |
| 919-539 | SUNCOM DBA T-MOBILE USA | 8645 | RALEIGH | NC | |
| 919-540 | SPOK, INC. | 6630 | CHAPELHILL | NC | |
| 919-541 | FRONTIER COMMUNICATIONS OF THE CAROLINAS INC. - NC | 4334 | DURHAM | NC |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.