NumberResearchRecent prefix assignments
347 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/29/2026
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
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Jan 2026
Dec 2025
Nov 2025
Oct 2025
Quick find in this area code:
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| 2018-11-22 | 343-297 | not yet reported which blocks → | Videotron Ltd. | 787G | Ottawa-Hull | — |
| 2018-11-22 | 579-533 | not yet reported which blocks → | Videotron Ltd. | 8306 | Knowlton | — |
| 2018-11-22 | 579-534 | not yet reported which blocks → | Videotron Ltd. | 8306 | Sutton | — |
| 2018-11-22 | 579-535 | not yet reported which blocks → | Videotron Ltd. | 8306 | Frelighsburg | — |
| 2018-11-22 | 647-581 | not yet reported which blocks → | Videotron Ltd. | 787G | Toronto | — |
| 2018-11-22 | 825-365 | not yet reported which blocks → | Videotron Ltd. | 787G | Calgary | — |
| 2018-11-22 | 905-226 | not yet reported which blocks → | Videotron Ltd. | 787G | Brampton | — |
| 2018-11-22 | 905-519 | not yet reported which blocks → | Videotron Ltd. | 787G | Hamilton | — |
| 2018-11-21 | 331-247 | 0–9 XXXall 10 · 2 holders which blocks → | VONAGE AMERICA LLC | 197D | NAPERVILLE | IL |
| 2018-11-21 | 336-640 | 0XXX1XXX2XXX3XXX6XXX7XXX8XXX9XXX · 5 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - NC | 3235 | SPARTA | NC |
| 2018-11-21 | 412-634 | 0XXX1XXX2XXX3XXX4XXX5XXX6XXX8XXX · 3 holders which blocks → | VERIZON PENNSYLVANIA, INC. | 9208 | ELIZABETH | PA |
| 2018-11-21 | 571-412 | 0–9 XXXall 10 · 3 holders which blocks → | OMNIPOINT COMMUNICATIONS CAP OPERATIONS, LLC | 6855 | OCCOQUAN | VA |
| 2018-11-21 | 579-531 | not yet reported which blocks → | Videotron Ltd. | 8306 | Mansonville | — |
| 2018-11-21 | 579-532 | not yet reported which blocks → | Videotron Ltd. | 8306 | Eastman | — |
| 2018-11-21 | 608-590 | 0–9 XXXall 10 · 3 holders which blocks → | ONVOY, LLC - WI | 225C | MADISON | WI |
| 2018-11-21 | 612-420 | 0–9 XXXwhole prefix which blocks → | QWEST CORPORATION | 9631 | TWINCITIES | MN |
| 2018-11-21 | 614-697 | 0–9 XXXall 10 · 3 holders which blocks → | ONVOY, LLC - OH | 464C | COLUMBUS | OH |
| 2018-11-21 | 639-239 | not yet reported which blocks → | Access Communications Co-operative Limited | 280H | Carrot River | — |
| 2018-11-21 | 639-271 | not yet reported which blocks → | Access Communications Co-operative Limited | 280H | Hudson Bay | — |
| 2018-11-21 | 639-427 | not yet reported which blocks → | Access Communications Co-operative Limited | 280H | Allan | — |
| 2018-11-21 | 639-428 | not yet reported which blocks → | Access Communications Co-operative Limited | 280H | Biggar | — |
| 2018-11-21 | 639-429 | not yet reported which blocks → | Access Communications Co-operative Limited | 280H | Cudworth | — |
| 2018-11-21 | 639-432 | not yet reported which blocks → | Access Communications Co-operative Limited | 280H | Dalmeny | — |
| 2018-11-21 | 639-433 | not yet reported which blocks → | Access Communications Co-operative Limited | 280H | Delisle | — |
| 2018-11-21 | 639-434 | not yet reported which blocks → | Access Communications Co-operative Limited | 280H | Hafford | — |
| 2018-11-21 | 684-782 | not yet reported which blocks → | AMERICAN SAMOA TELECOMMUNICATIONS AUTHORITY | 909H | AM SAMOA | AS |
| 2018-11-21 | 786-680 | not yet reported which blocks → | RIGHT CALL LLC | 365J | KEYS | FL |
| 2018-11-21 | 857-354 | 0–9 XXXall 10 · 7 holders which blocks → | OMNIPOINT MIAMI E LICENSE, LLC | 6889 | BOSTON | MA |
| 2018-11-21 | 906-256 | 0–9 XXXwhole prefix which blocks → | LEVEL 3 COMMUNICATIONS, LLC - MI | 6120 | GWINN | MI |
| 2018-11-21 | 954-750 | not yet reported which blocks → | RIGHT CALL LLC | 365J | CORAL SPG | FL |
| 2018-11-20 | 206-833 | 0–9 XXXall 10 · 3 holders which blocks → | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SEATTLE | WA |
| 2018-11-20 | 239-299 | 0–9 XXXall 10 · 3 holders which blocks → | ONVOY, LLC - FL | 937C | FTMYERSBCH | FL |
| 2018-11-20 | 407-795 | 0–9 XXXall 10 · 2 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL | 6502 | WINTERPARK | FL |
| 2018-11-20 | 409-904 | 0–9 XXXall 10 · 4 holders which blocks → | ONVOY, LLC - TX | 903C | HTCHCCKSNF | TX |
| 2018-11-20 | 561-581 | 0–9 XXXall 10 · 3 holders which blocks → | ONVOY, LLC - FL | 937C | JUPITER | FL |
| 2018-11-20 | 585-505 | 0–9 XXXall 10 · 5 holders which blocks → | EMPIRE LONG DISTANCE CORPORATION | 087H | ROCHESTER | NY |
| 2018-11-20 | 639-272 | not yet reported which blocks → | Access Communications Co-operative Limited | 280H | Humboldt | — |
| 2018-11-20 | 639-273 | not yet reported which blocks → | Access Communications Co-operative Limited | 280H | Kinistino | — |
| 2018-11-20 | 639-274 | not yet reported which blocks → | Access Communications Co-operative Limited | 280H | La Ronge | — |
| 2018-11-20 | 639-276 | not yet reported which blocks → | Access Communications Co-operative Limited | 280H | Melfort | — |
| 2018-11-20 | 639-277 | not yet reported which blocks → | Access Communications Co-operative Limited | 280H | Nipawin | — |
| 2018-11-20 | 639-278 | not yet reported which blocks → | Access Communications Co-operative Limited | 280H | Prince Albert | — |
| 2018-11-20 | 639-279 | not yet reported which blocks → | Access Communications Co-operative Limited | 280H | Shellbrook | — |
| 2018-11-20 | 639-281 | not yet reported which blocks → | Access Communications Co-operative Limited | 280H | Spiritwood | — |
| 2018-11-20 | 639-282 | not yet reported which blocks → | Access Communications Co-operative Limited | 280H | Tisdale | — |
| 2018-11-20 | 639-293 | not yet reported which blocks → | Access Communications Co-operative Limited | 280H | Watson | — |
| 2018-11-20 | 639-435 | not yet reported which blocks → | Access Communications Co-operative Limited | 280H | Langham | — |
| 2018-11-20 | 639-436 | not yet reported which blocks → | Access Communications Co-operative Limited | 280H | Lanigan | — |
| 2018-11-20 | 639-437 | not yet reported which blocks → | Access Communications Co-operative Limited | 280H | Osler | — |
| 2018-11-20 | 639-438 | not yet reported which blocks → | Access Communications Co-operative Limited | 280H | Outlook | — |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/29/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.