NumberResearchRecent prefix assignments
375 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/30/2026
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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Feb 2026
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 |
|---|---|---|---|---|---|---|
| 2017-08-03 | 639-820 | not yet reported which blocks → | Bell Mobility | 6574 | Tribune | — |
| 2017-08-03 | 825-509 | not yet reported which blocks → | TELUS | 8084 | Calgary | — |
| 2017-08-03 | 825-710 | not yet reported which blocks → | TELUS | 8084 | Calgary | — |
| 2017-08-03 | 825-910 | not yet reported which blocks → | TELUS | 8084 | Calgary | — |
| 2017-08-03 | 843-867 | 0–9 XXXall 10 · 6 holders which blocks → | COMMIO, LLC | 939H | CHARLESTON | SC |
| 2017-08-03 | 848-215 | 0–9 XXXwhole prefix which blocks → | NEW CINGULAR WIRELESS PCS, LLC - DC | 4036 | DUNELLEN | NJ |
| 2017-08-03 | 864-432 | 0–9 XXXall 10 · 3 holders which blocks → | FRONTIER COMMUNICATIONS OF THE CAROLINAS INC. - SC | 0526 | SIMPSONVL | SC |
| 2017-08-03 | 904-431 | 0–9 XXXall 10 · 6 holders which blocks → | VONAGE AMERICA LLC | 197D | JACKSONVL | FL |
| 2017-08-03 | 916-306 | 0–9 XXXall 10 · 4 holders which blocks → | VONAGE AMERICA LLC | 197D | SCRM MAIN | CA |
| 2017-08-02 | 226-879 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Shelburne | — |
| 2017-08-02 | 226-891 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Grand Valley | — |
| 2017-08-02 | 226-892 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Erin | — |
| 2017-08-02 | 226-893 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Dundalk | — |
| 2017-08-02 | 226-897 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Arthur | — |
| 2017-08-02 | 236-588 | not yet reported which blocks → | TELUS Mobility | 8301 | Kelowna | — |
| 2017-08-02 | 236-850 | not yet reported which blocks → | TELUS Mobility | 8301 | Vancouver | — |
| 2017-08-02 | 239-202 | 0–9 XXXall 10 · 7 holders which blocks → | VONAGE AMERICA LLC | 197D | FORT MYERS | FL |
| 2017-08-02 | 249-318 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Alban | — |
| 2017-08-02 | 249-319 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Chapleau | — |
| 2017-08-02 | 249-320 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Killarney | — |
| 2017-08-02 | 249-321 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Little Current | — |
| 2017-08-02 | 249-322 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Massey | — |
| 2017-08-02 | 249-323 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Noelville | — |
| 2017-08-02 | 249-324 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | St. Charles | — |
| 2017-08-02 | 249-325 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Spanish | — |
| 2017-08-02 | 249-326 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Warren | — |
| 2017-08-02 | 249-327 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Wawa | — |
| 2017-08-02 | 249-329 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Bobcaygeon | — |
| 2017-08-02 | 249-330 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Cannington | — |
| 2017-08-02 | 249-331 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Coboconk | — |
| 2017-08-02 | 249-333 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Kirkfield | — |
| 2017-08-02 | 249-334 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Apsley | — |
| 2017-08-02 | 249-335 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Bethany | — |
| 2017-08-02 | 249-336 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Bridgenorth | — |
| 2017-08-02 | 249-337 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Buckhorn | — |
| 2017-08-02 | 249-339 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Campbellford | — |
| 2017-08-02 | 249-340 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Hastings | — |
| 2017-08-02 | 249-341 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Havelock | — |
| 2017-08-02 | 249-933 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Fenelon Falls | — |
| 2017-08-02 | 249-934 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Beaverton | — |
| 2017-08-02 | 406-561 | 0–9 XXXall 10 · 2 holders which blocks → | T-MOBILE USA, INC. | 6529 | BILLINGS | MT |
| 2017-08-02 | 437-550 | not yet reported which blocks → | TELUS Mobility | 8303 | Toronto | — |
| 2017-08-02 | 437-850 | not yet reported which blocks → | TELUS Mobility | 8303 | Toronto | — |
| 2017-08-02 | 438-550 | not yet reported which blocks → | TELUS Mobility | 8303 | Montreal | — |
| 2017-08-02 | 438-850 | not yet reported which blocks → | TELUS Mobility | 8303 | Montreal | — |
| 2017-08-02 | 440-517 | 0–9 XXXall 10 · 5 holders which blocks → | TWC IP ENABLED SERVICES, LLC | 793K | AVON | OH |
| 2017-08-02 | 518-646 | 0–9 XXXall 10 · 5 holders which blocks → | VONAGE AMERICA LLC | 197D | ALBANY | NY |
| 2017-08-02 | 571-361 | 0–9 XXXall 10 · 4 holders which blocks → | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | MANASSAS | VA |
| 2017-08-02 | 605-410 | 0XXX5XXX · 2 holders which blocks → | MIDCONTINENT COMMUNICATIONS. - SD | 7076 | IPSWICH | SD |
| 2017-08-02 | 716-277 | 0–9 XXXall 10 · 2 holders which blocks → | VONAGE AMERICA LLC | 197D | BUFFALO | NY |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/30/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.