NumberResearchRecent prefix assignments
349 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/24/2026
The Code holder is who opened each NPA-NXX prefix — not necessarily who holds the numbers. A prefix is 10,000 numbers, but under pooling its ten 1,000-number blocks are handed out individually, often to different carriers; the code holder may hold only one block, or none. The Thousands-blocks column shows how the ten blocks are really split — click which blocks → to see who holds each 1,000-number block and its last-4-digit range. Assignments are initial assignments; the current serving carrier may differ due to portability.
Most active assignees, last 30 days
New assignments by month
Sep 2026
Aug 2026
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May 2026
Apr 2026
Mar 2026
Feb 2026
Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| 2011-07-22 | 626-586 | 0–9 XXXall 10 · 2 holders which blocks → | T-MOBILE USA, INC. | 6529 | ALHAMBRA | CA |
| 2011-07-22 | 647-485 | not yet reported which blocks → | Distributel | 082E | Toronto | — |
| 2011-07-22 | 647-486 | not yet reported which blocks → | Distributel | 082E | Toronto | — |
| 2011-07-22 | 647-487 | not yet reported which blocks → | Distributel | 082E | Toronto | — |
| 2011-07-22 | 647-488 | not yet reported which blocks → | Distributel | 082E | Toronto | — |
| 2011-07-22 | 647-489 | not yet reported which blocks → | Distributel | 082E | Toronto | — |
| 2011-07-22 | 657-235 | 0–9 XXXall 10 · 9 holders which blocks → | BANDWIDTH.COM CLEC, LLC - CA | 981E | SANTA ANA | CA |
| 2011-07-22 | 705-984 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Barrie | — |
| 2011-07-22 | 705-985 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Barrie | — |
| 2011-07-22 | 706-535 | 0–9 XXXall 10 · 8 holders which blocks → | POWERTEL ATLANTA LICENSES, INC. | 7473 | WAYNESBORO | GA |
| 2011-07-22 | 714-576 | 0–9 XXXall 10 · 5 holders which blocks → | T-MOBILE USA, INC. | 6529 | BUENA PARK | CA |
| 2011-07-22 | 720-612 | 0–9 XXXall 10 · 3 holders which blocks → | T-MOBILE USA, INC. | 6529 | DENVER | CO |
| 2011-07-22 | 786-332 | 0–9 XXXall 10 · 3 holders which blocks → | COMCAST IP PHONE, LLC | 318J | MIAMI | FL |
| 2011-07-22 | 832-560 | 0–9 XXXall 10 · 2 holders which blocks → | AERIAL COMMUNICATIONS, INC. | 6701 | BAMMEL | TX |
| 2011-07-22 | 925-338 | 0–9 XXXall 10 · 4 holders which blocks → | BANDWIDTH.COM CLEC, LLC - CA | 981E | CONCORD | CA |
| 2011-07-22 | 980-365 | 0–9 XXXall 10 · 4 holders which blocks → | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NC | 7835 | CHARLOTTE | NC |
| 2011-07-21 | 224-245 | 0–9 XXXall 10 · 2 holders which blocks → | T-MOBILE USA, INC. | 6529 | ARLIGTNHTS | IL |
| 2011-07-21 | 317-476 | 0–9 XXXall 10 · 2 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | INDIANAPLS | IN |
| 2011-07-21 | 321-237 | 0–9 XXXall 10 · 3 holders which blocks → | BANDWIDTH.COM CLEC, LLC - FL | 982E | MELBOURNE | FL |
| 2011-07-21 | 423-264 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX7XXX8XXX · 4 holders which blocks → | COMCAST IP PHONE, LLC | 318J | VONORE | TN |
| 2011-07-21 | 581-232 | not yet reported which blocks → | TELUS Mobility | 8303 | Matane | — |
| 2011-07-21 | 604-356 | not yet reported which blocks → | Bell Mobility | 6574 | Vancouver | — |
| 2011-07-21 | 613-404 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Ottawa-Hull | — |
| 2011-07-21 | 613-410 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Ottawa-Hull | — |
| 2011-07-21 | 613-415 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Ottawa-Hull | — |
| 2011-07-21 | 613-607 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Ottawa-Hull | — |
| 2011-07-21 | 613-615 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Ottawa-Hull | — |
| 2011-07-21 | 613-716 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Ottawa-Hull | — |
| 2011-07-21 | 613-910 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Ottawa-Hull | — |
| 2011-07-21 | 779-233 | 0–9 XXXall 10 · 3 holders which blocks → | T-MOBILE USA, INC. | 6529 | JOLIET | IL |
| 2011-07-21 | 786-527 | 0–9 XXXall 10 · 3 holders which blocks → | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | MIAMI | FL |
| 2011-07-21 | 902-700 | not yet reported which blocks → | Iristel Inc. | 154E | Halifax | — |
| 2011-07-21 | 902-801 | not yet reported which blocks → | Iristel Inc. | 154E | Halifax | — |
| 2011-07-21 | 978-427 | 0–9 XXXall 10 · 4 holders which blocks → | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | LOWELL | MA |
| 2011-07-20 | 204-515 | not yet reported which blocks → | Distributel | 081E | Winnipeg | — |
| 2011-07-20 | 216-927 | 0XXX5XXX6XXX7XXX9XXX · 2 holders which blocks → | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - OH | 7443 | MONTRSE | OH |
| 2011-07-20 | 424-281 | 0–9 XXXall 10 · 5 holders which blocks → | BANDWIDTH.COM CLEC, LLC - CA | 981E | BEVERLYHLS | CA |
| 2011-07-20 | 438-986 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Montreal | — |
| 2011-07-20 | 438-987 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Montreal | — |
| 2011-07-20 | 438-988 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Montreal | — |
| 2011-07-20 | 438-989 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Montreal | — |
| 2011-07-20 | 438-990 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Montreal | — |
| 2011-07-20 | 438-991 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Montreal | — |
| 2011-07-20 | 438-992 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Montreal | — |
| 2011-07-20 | 438-993 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Montreal | — |
| 2011-07-20 | 438-994 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Montreal | — |
| 2011-07-20 | 470-422 | 0–9 XXXall 10 · 4 holders which blocks → | BELLSOUTH TELECOMM INC DBA SOUTHERN BELL TEL & TEL | 9417 | ATLANTA NE | GA |
| 2011-07-20 | 587-781 | not yet reported which blocks → | Distributel | 081E | Edmonton | — |
| 2011-07-20 | 587-782 | not yet reported which blocks → | Distributel | 081E | Edmonton | — |
| 2011-07-20 | 603-243 | 0XXX1XXX6XXX · 3 holders which blocks → | CHARTER IP ENABLED SERVICES, LLC | 792K | WOODSVILLE | NH |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/24/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.