NumberResearchRecent prefix assignments
334 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/28/2026
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
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Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| 2016-02-01 | 365-506 | not yet reported which blocks → | Distributel | 082E | King City | — |
| 2016-02-01 | 365-507 | not yet reported which blocks → | Distributel | 082E | Kleinburg | — |
| 2016-02-01 | 365-508 | not yet reported which blocks → | Distributel | 082E | Maple | — |
| 2016-02-01 | 365-509 | not yet reported which blocks → | Distributel | 082E | Markham | — |
| 2016-02-01 | 365-510 | not yet reported which blocks → | Distributel | 082E | Mount Albert | — |
| 2016-02-01 | 365-512 | not yet reported which blocks → | Distributel | 082E | Newmarket | — |
| 2016-02-01 | 365-514 | not yet reported which blocks → | Distributel | 082E | Nobleton | — |
| 2016-02-01 | 365-515 | not yet reported which blocks → | Distributel | 082E | Oak Ridges | — |
| 2016-02-01 | 407-675 | 0–9 XXXall 10 · 6 holders which blocks → | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | ORLANDO | FL |
| 2016-02-01 | 407-912 | 0–9 XXXall 10 · 2 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL | 6502 | ORLANDO | FL |
| 2016-02-01 | 431-300 | not yet reported which blocks → | Iristel Inc. | 154E | Austin | — |
| 2016-02-01 | 440-797 | 0XXX1XXX3XXX4XXX5XXX7XXX8XXX9XXX · 5 holders which blocks → | ONVOY, LLC - OH | 464C | BEDFORD | OH |
| 2016-02-01 | 506-700 | not yet reported which blocks → | Iristel Inc. | 154E | Bouctouche | — |
| 2016-02-01 | 513-883 | 0–9 XXXall 10 · 5 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | HAMILTON | OH |
| 2016-02-01 | 561-264 | 0–9 XXXall 10 · 5 holders which blocks → | ONVOY, LLC - FL | 937C | PAHOKEE | FL |
| 2016-02-01 | 587-507 | not yet reported which blocks → | Iristel Inc. | 154E | Blackfalds | — |
| 2016-02-01 | 587-806 | not yet reported which blocks → | Iristel Inc. | 154E | Anzac | — |
| 2016-02-01 | 587-907 | not yet reported which blocks → | Iristel Inc. | 154E | Banff | — |
| 2016-02-01 | 619-323 | 0–9 XXXall 10 · 3 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | SNDG SNDG | CA |
| 2016-02-01 | 629-200 | 0–9 XXXall 10 · 4 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - GA | 6214 | GOODLETSVL | TN |
| 2016-02-01 | 631-305 | 0–9 XXXall 10 · 2 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | BRENTWOOD | NY |
| 2016-02-01 | 657-390 | 0–9 XXXall 10 · 3 holders which blocks → | ONVOY, LLC - CA | 649C | ORANGE | CA |
| 2016-02-01 | 702-819 | 0–9 XXXwhole prefix which blocks → | ONVOY, LLC - NV | 029F | LAS VEGAS | NV |
| 2016-02-01 | 709-703 | not yet reported which blocks → | Iristel Inc. | 154E | Bay Roberts | — |
| 2016-02-01 | 709-704 | not yet reported which blocks → | Iristel Inc. | 154E | Bonavista | — |
| 2016-02-01 | 856-502 | 0–9 XXXall 10 · 6 holders which blocks → | ONVOY, LLC - NJ | 637C | MILLVILLE | NJ |
| 2016-02-01 | 902-903 | not yet reported which blocks → | Iristel Inc. | 154E | Barrington | — |
| 2016-02-01 | 902-906 | not yet reported which blocks → | Iristel Inc. | 154E | Amherst | — |
| 2016-02-01 | 902-907 | not yet reported which blocks → | Iristel Inc. | 154E | Annapolis Royal | — |
| 2016-02-01 | 902-908 | not yet reported which blocks → | Iristel Inc. | 154E | Antigonish | — |
| 2016-02-01 | 904-295 | 0–9 XXXall 10 · 5 holders which blocks → | ONVOY, LLC - FL | 937C | ST JOHNS | FL |
| 2016-01-29 | 226-895 | not yet reported which blocks → | Iristel Inc. | 154E | Galt | — |
| 2016-01-29 | 249-500 | not yet reported which blocks → | Iristel Inc. | 154E | Algoma Mills | — |
| 2016-01-29 | 249-501 | not yet reported which blocks → | Iristel Inc. | 154E | Alliston | — |
| 2016-01-29 | 346-232 | 0–9 XXXall 10 · 2 holders which blocks → | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX | 7239 | HOUSTON | TX |
| 2016-01-29 | 438-200 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Montreal | — |
| 2016-01-29 | 438-201 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Montreal | — |
| 2016-01-29 | 438-202 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Montreal | — |
| 2016-01-29 | 438-203 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Montreal | — |
| 2016-01-29 | 438-204 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Montreal | — |
| 2016-01-29 | 438-205 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Montreal | — |
| 2016-01-29 | 438-206 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Montreal | — |
| 2016-01-29 | 438-207 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Montreal | — |
| 2016-01-29 | 438-208 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Montreal | — |
| 2016-01-29 | 438-209 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Montreal | — |
| 2016-01-29 | 604-409 | not yet reported which blocks → | Iristel Inc. | 154E | Aldergrove | — |
| 2016-01-29 | 619-505 | 0–9 XXXall 10 · 4 holders which blocks → | ONVOY, LLC - CA | 649C | NATIONALCY | CA |
| 2016-01-29 | 620-312 | 0–9 XXXall 10 · 4 holders which blocks → | PEERLESS NETWORK OF KANSAS, LLC - KS | 018H | YATES CTR | KS |
| 2016-01-29 | 647-325 | not yet reported which blocks → | Bell Mobility | 6574 | Toronto | — |
| 2016-01-29 | 647-326 | not yet reported which blocks → | Bell Mobility | 6574 | Toronto | — |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/28/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.