NumberResearchRecent prefix assignments
0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/20/2026
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, all time — NPA 450
New assignments by month
Sep 2026
Aug 2026
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Oct 2025
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| 2006-03-29 | 450-361 | not yet reported which blocks → | Bell Canada | 8050 | Granby | — |
| 2005-06-03 | 450-420 | not yet reported which blocks → | Bell Canada | 8050 | Ste-Therese | — |
| 2003-09-16 | 450-572 | not yet reported which blocks → | Bell Canada | 8050 | Chambly | — |
| 2002-06-13 | 450-633 | not yet reported which blocks → | Bell Canada | 8050 | St-Constant | — |
| 2001-06-26 | 450-645 | not yet reported which blocks → | Bell Canada | 8050 | Boucherville | — |
| 2001-06-11 | 450-624 | not yet reported which blocks → | Bell Canada | 8050 | Ste-Rose | — |
| 2001-05-04 | 450-530 | not yet reported which blocks → | Bell Canada | 8050 | St-Jerome | — |
| 2001-01-16 | 450-760 | not yet reported which blocks → | Bell Canada | 8050 | Joliette | — |
| 2000-03-10 | 450-601 | not yet reported which blocks → | Bell Canada | 8050 | Valleyfield | — |
| — | 450-222 | not yet reported which blocks → | Bell Canada | 8050 | St-Calixte-de-Kilkenny | — |
| — | 450-223 | not yet reported which blocks → | Bell Canada | 8050 | St-Hyacinthe | — |
| — | 450-224 | not yet reported which blocks → | Bell Canada | 8050 | Shawbridge | — |
| — | 450-225 | not yet reported which blocks → | Bell Canada | 8050 | Beauharnois | — |
| — | 450-226 | not yet reported which blocks → | Bell Canada | 8050 | Morin Heights | — |
| — | 450-227 | not yet reported which blocks → | Bell Canada | 8050 | St-Sauveur | — |
| — | 450-228 | not yet reported which blocks → | Bell Canada | 8050 | Ste-Marguerite | — |
| — | 450-229 | not yet reported which blocks → | Bell Canada | 8050 | Ste-Adele | — |
| — | 450-240 | not yet reported which blocks → | Bell Canada | 8050 | St-Sauveur | — |
| — | 450-242 | not yet reported which blocks → | Bell Canada | 8050 | Knowlton | — |
| — | 450-243 | not yet reported which blocks → | Bell Canada | 8050 | Knowlton | — |
| — | 450-245 | not yet reported which blocks → | Bell Canada | 8050 | Napierville | — |
| — | 450-246 | not yet reported which blocks → | Bell Canada | 8050 | Lacolle | — |
| — | 450-247 | not yet reported which blocks → | Bell Canada | 8050 | Hemmingford | — |
| — | 450-248 | not yet reported which blocks → | Bell Canada | 8050 | Bedford | — |
| — | 450-258 | not yet reported which blocks → | Bell Canada | 8050 | Mirabel-Ste-Scholastique | — |
| — | 450-260 | not yet reported which blocks → | Bell Canada | 8050 | Cowansville | — |
| — | 450-261 | not yet reported which blocks → | Bell Canada | 8050 | St-Hyacinthe | — |
| — | 450-263 | not yet reported which blocks → | Bell Canada | 8050 | Cowansville | — |
| — | 450-264 | not yet reported which blocks → | Bell Canada | 8050 | Huntingdon | — |
| — | 450-265 | not yet reported which blocks → | Bell Canada | 8050 | St-Polycarpe | — |
| — | 450-266 | not yet reported which blocks → | Bell Canada | 8050 | Cowansville | — |
| — | 450-267 | not yet reported which blocks → | Bell Canada | 8050 | Coteau-Landing | — |
| — | 450-269 | not yet reported which blocks → | Bell Canada | 8050 | Riviere-Beaudette | — |
| — | 450-291 | not yet reported which blocks → | Bell Canada | 8050 | St-Blaise | — |
| — | 450-292 | not yet reported which blocks → | Bell Canada | 8050 | Mansonville | — |
| — | 450-293 | not yet reported which blocks → | Bell Canada | 8050 | Farnham | — |
| — | 450-294 | not yet reported which blocks → | Bell Canada | 8050 | Clarenceville | — |
| — | 450-295 | not yet reported which blocks → | Bell Canada | 8050 | Dunham | — |
| — | 450-297 | not yet reported which blocks → | Bell Canada | 8050 | Eastman | — |
| — | 450-298 | not yet reported which blocks → | Bell Canada | 8050 | Frelighsburg | — |
| — | 450-299 | not yet reported which blocks → | Bell Canada | 8050 | Henryville | — |
| — | 450-310 | not yet reported which blocks → | Bell Canada | 8050 | 7 Digit Service | — |
| — | 450-346 | not yet reported which blocks → | Bell Canada | 8050 | St-Jean | — |
| — | 450-347 | not yet reported which blocks → | Bell Canada | 8050 | St-Jean | — |
| — | 450-348 | not yet reported which blocks → | Bell Canada | 8050 | St-Jean | — |
| — | 450-349 | not yet reported which blocks → | Bell Canada | 8050 | St-Jean | — |
| — | 450-357 | not yet reported which blocks → | Bell Canada | 8050 | St-Jean | — |
| — | 450-358 | not yet reported which blocks → | Bell Canada | 8050 | St-Jean | — |
| — | 450-359 | not yet reported which blocks → | Bell Canada | 8050 | St-Jean | — |
| — | 450-360 | not yet reported which blocks → | Bell Canada | 8050 | Granby | — |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.