NumberResearchRecent prefix assignments
360 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/26/2026
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
Jul 2026
Jun 2026
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 |
|---|---|---|---|---|---|---|
| 2012-03-02 | 845-414 | 0–9 XXXall 10 · 7 holders which blocks → | OMNIPOINT COMMUNICATIONS, INC. - NY | 6622 | SPRING VLY | NY |
| 2012-03-02 | 845-663 | 0–9 XXXall 10 · 4 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | KINGSTON | NY |
| 2012-03-02 | 914-336 | 0–9 XXXall 10 · 6 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - NY | 6959 | WSCHSTZN03 | NY |
| 2012-03-02 | 917-808 | 0–9 XXXall 10 · 4 holders which blocks → | METROPCS, INC. | 5562 | NWYRCYZN07 | NY |
| 2012-03-02 | 917-942 | 0–9 XXXall 10 · 5 holders which blocks → | METROPCS, INC. | 5562 | NWYRCYZN12 | NY |
| 2012-03-02 | 917-943 | 0–9 XXXall 10 · 3 holders which blocks → | METROPCS, INC. | 5562 | NWYRCYZN08 | NY |
| 2012-03-02 | 917-963 | 0–9 XXXall 10 · 3 holders which blocks → | OMNIPOINT COMMUNICATIONS, INC. - NY | 6622 | NWYRCYZN09 | NY |
| 2012-03-02 | 980-320 | 0–9 XXXall 10 · 3 holders which blocks → | SUNCOM DBA T-MOBILE USA | 8645 | GASTONIA | NC |
| 2012-03-01 | 249-302 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Algoma Mills | — |
| 2012-03-01 | 289-723 | not yet reported which blocks → | Iristel Inc. | 154E | St. Catharines-Thorold | — |
| 2012-03-01 | 438-388 | not yet reported which blocks → | Fibernetics Corporation | 464D | Montreal | — |
| 2012-03-01 | 504-408 | 0–9 XXXall 10 · 2 holders which blocks → | VOICESTREAM GSM I, LLC | 150C | NEWORLEANS | LA |
| 2012-03-01 | 587-287 | not yet reported which blocks → | Fibernetics Corporation | 464D | Calgary | — |
| 2012-03-01 | 587-487 | not yet reported which blocks → | Fibernetics Corporation | 464D | Edmonton | — |
| 2012-03-01 | 604-371 | not yet reported which blocks → | Shaw Telecom Inc. | 497E | Fort Langley | — |
| 2012-03-01 | 604-380 | not yet reported which blocks → | Shaw Telecom Inc. | 497E | Haney | — |
| 2012-03-01 | 604-390 | not yet reported which blocks → | Shaw Telecom Inc. | 497E | Squamish | — |
| 2012-03-01 | 604-405 | not yet reported which blocks → | Shaw Telecom Inc. | 497E | Whonnock | — |
| 2012-03-01 | 604-457 | not yet reported which blocks → | Shaw Telecom Inc. | 497E | Pitt Meadows | — |
| 2012-03-01 | 647-872 | not yet reported which blocks → | Fibernetics Corporation | 464D | Toronto | — |
| 2012-03-01 | 647-874 | not yet reported which blocks → | Fibernetics Corporation | 464D | Toronto | — |
| 2012-03-01 | 778-353 | not yet reported which blocks → | Shaw Telecom Inc. | 497E | Ganges | — |
| 2012-03-01 | 778-354 | not yet reported which blocks → | Shaw Telecom Inc. | 497E | Fulford Harbour | — |
| 2012-03-01 | 778-356 | not yet reported which blocks → | Shaw Telecom Inc. | 497E | Cobble Hill | — |
| 2012-03-01 | 778-776 | not yet reported which blocks → | Fibernetics Corporation | 464D | Vancouver | — |
| 2012-03-01 | 819-307 | not yet reported which blocks → | Iristel Inc. | 154E | Gatineau | — |
| 2012-03-01 | 856-777 | 0–9 XXXall 10 · 6 holders which blocks → | PEERLESS NETWORK OF NEW JERSEY, LLC - NJ | 264F | VINELAND | NJ |
| 2012-03-01 | 985-208 | 0–9 XXXall 10 · 5 holders which blocks → | VOICESTREAM GSM I, LLC | 150C | HOUMA | LA |
| 2012-02-29 | 502-631 | 0–9 XXXall 10 · 4 holders which blocks → | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - KY | 6500 | LOUISVILLE | KY |
| 2012-02-29 | 604-332 | not yet reported which blocks → | Iristel Inc. | 154E | Richmond | — |
| 2012-02-29 | 647-495 | not yet reported which blocks → | Iristel Inc. | 154E | Toronto | — |
| 2012-02-29 | 647-496 | not yet reported which blocks → | Iristel Inc. | 154E | Toronto | — |
| 2012-02-29 | 647-498 | not yet reported which blocks → | Iristel Inc. | 154E | Toronto | — |
| 2012-02-29 | 647-499 | not yet reported which blocks → | Iristel Inc. | 154E | Toronto | — |
| 2012-02-29 | 647-503 | not yet reported which blocks → | Iristel Inc. | 154E | Toronto | — |
| 2012-02-29 | 705-421 | not yet reported which blocks → | Bell Aliant, a division of Bell Canada | 709G | Chelmsford | — |
| 2012-02-29 | 705-442 | not yet reported which blocks → | Bell Aliant, a division of Bell Canada | 709G | Blezard Valley | — |
| 2012-02-29 | 705-451 | not yet reported which blocks → | Bell Aliant, a division of Bell Canada | 709G | Hanmer | — |
| 2012-02-29 | 705-453 | not yet reported which blocks → | Bell Aliant, a division of Bell Canada | 709G | Coniston | — |
| 2012-02-29 | 705-459 | not yet reported which blocks → | Bell Aliant, a division of Bell Canada | 709G | Garson | — |
| 2012-02-29 | 705-512 | not yet reported which blocks → | Bell Aliant, a division of Bell Canada | 709G | Azilda | — |
| 2012-02-29 | 719-421 | 0XXX1XXX2XXX4XXX5XXX6XXX7XXX8XXX9XXX · 3 holders which blocks → | NEW CINGULAR WIRELESS PCS, LLC | 6010 | EL PASO | CO |
| 2012-02-29 | 778-403 | not yet reported which blocks → | Iristel Inc. | 154E | Victoria | — |
| 2012-02-29 | 902-809 | not yet reported which blocks → | TELUS Mobility | 8303 | Halifax | — |
| 2012-02-29 | 928-439 | 0XXX2XXX4XXX7XXX9XXX · 4 holders which blocks → | LEVEL 3 COMMUNICATIONS, LLC - AZ | 3285 | DUNCAN | AZ |
| 2012-02-28 | 205-638 | 0–9 XXXwhole prefix which blocks → | BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL | 9419 | BIRMINGHAM | AL |
| 2012-02-28 | 334-602 | 0XXX1XXX2XXX3XXX4XXX6XXX7XXX9XXX · 6 holders which blocks → | TROY CABLEVISION, INC. - AL | 208D | ECHO | AL |
| 2012-02-28 | 603-251 | 0XXX1XXX4XXX · 3 holders which blocks → | PAETEC ITEL, LLC | 829J | CHARLESTN | NH |
| 2012-02-28 | 604-381 | not yet reported which blocks → | Shaw Telecom Inc. | 497E | Aldergrove | — |
| 2012-02-28 | 646-590 | 0–9 XXXwhole prefix which blocks → | TWC IP ENABLED SERVICES, LLC | 793K | NWYRCYZN01 | NY |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/26/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.