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 519
New assignments by month
Sep 2026
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Oct 2025
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| — | 519-264 | not yet reported which blocks → | Bell Canada | 8051 | Mount Brydges | — |
| — | 519-268 | not yet reported which blocks → | Bell Canada | 8051 | Dorchester | — |
| — | 519-269 | not yet reported which blocks → | Bell Canada | 8051 | Harrietsville | — |
| — | 519-271 | not yet reported which blocks → | Bell Canada | 8051 | Stratford | — |
| — | 519-272 | not yet reported which blocks → | Bell Canada | 8051 | Stratford | — |
| — | 519-273 | not yet reported which blocks → | Bell Canada | 8051 | Stratford | — |
| — | 519-274 | not yet reported which blocks → | Bell Canada | 8051 | Stratford | — |
| — | 519-275 | not yet reported which blocks → | Bell Canada | 8051 | Stratford | — |
| — | 519-283 | not yet reported which blocks → | Bell Canada | 8051 | Kintore | — |
| — | 519-284 | not yet reported which blocks → | Bell Canada | 8051 | St. Marys | — |
| — | 519-285 | not yet reported which blocks → | Bell Canada | 8051 | Thamesford | — |
| — | 519-287 | not yet reported which blocks → | Bell Canada | 8051 | Glencoe | — |
| — | 519-289 | not yet reported which blocks → | Bell Canada | 8051 | Melbourne | — |
| — | 519-291 | not yet reported which blocks → | Bell Canada | 8051 | Listowel | — |
| — | 519-292 | not yet reported which blocks → | Bell Canada | 8051 | Listowel | — |
| — | 519-293 | not yet reported which blocks → | Bell Canada | 8051 | Ailsa Craig | — |
| — | 519-294 | not yet reported which blocks → | Bell Canada | 8051 | Parkhill | — |
| — | 519-310 | not yet reported which blocks → | Bell Canada | 8051 | 7 Digit Service | — |
| — | 519-322 | not yet reported which blocks → | Bell Canada | 8051 | Leamington | — |
| — | 519-323 | not yet reported which blocks → | Bell Canada | 8051 | Mount Forest | — |
| — | 519-324 | not yet reported which blocks → | Bell Canada | 8051 | Leamington | — |
| — | 519-326 | not yet reported which blocks → | Bell Canada | 8051 | Leamington | — |
| — | 519-332 | not yet reported which blocks → | Bell Canada | 8051 | Sarnia | — |
| — | 519-333 | not yet reported which blocks → | Bell Canada | 8051 | Sarnia | — |
| — | 519-334 | not yet reported which blocks → | Bell Canada | 8051 | Holstein | — |
| — | 519-336 | not yet reported which blocks → | Bell Canada | 8051 | Sarnia | — |
| — | 519-337 | not yet reported which blocks → | Bell Canada | 8051 | Sarnia | — |
| — | 519-338 | not yet reported which blocks → | Bell Canada | 8051 | Harriston | — |
| — | 519-339 | not yet reported which blocks → | Bell Canada | 8051 | Sarnia | — |
| — | 519-343 | not yet reported which blocks → | Bell Canada | 8051 | Palmerston | — |
| — | 519-344 | not yet reported which blocks → | Bell Canada | 8051 | Sarnia | — |
| — | 519-345 | not yet reported which blocks → | Bell Canada | 8051 | Dublin | — |
| — | 519-347 | not yet reported which blocks → | Bell Canada | 8051 | Monkton | — |
| — | 519-348 | not yet reported which blocks → | Bell Canada | 8051 | Mitchell | — |
| — | 519-351 | not yet reported which blocks → | Bell Canada | 8051 | Chatham | — |
| — | 519-352 | not yet reported which blocks → | Bell Canada | 8051 | Chatham | — |
| — | 519-354 | not yet reported which blocks → | Bell Canada | 8051 | Chatham | — |
| — | 519-355 | not yet reported which blocks → | Bell Canada | 8051 | Chatham | — |
| — | 519-356 | not yet reported which blocks → | Bell Canada | 8051 | Atwood | — |
| — | 519-357 | not yet reported which blocks → | Bell Canada | 8051 | Wingham | — |
| — | 519-358 | not yet reported which blocks → | Bell Canada | 8051 | Chatham | — |
| — | 519-360 | not yet reported which blocks → | Bell Canada | 8051 | Chatham | — |
| — | 519-363 | not yet reported which blocks → | Bell Canada | 8051 | Chesley | — |
| — | 519-364 | not yet reported which blocks → | Bell Canada | 8051 | Hanover | — |
| — | 519-366 | not yet reported which blocks → | Bell Canada | 8051 | Cargill | — |
| — | 519-369 | not yet reported which blocks → | Bell Canada | 8051 | Durham | — |
| — | 519-371 | not yet reported which blocks → | Bell Canada | 8051 | Owen Sound | — |
| — | 519-372 | not yet reported which blocks → | Bell Canada | 8051 | Owen Sound | — |
| — | 519-373 | not yet reported which blocks → | Bell Canada | 8051 | Owen Sound | — |
| — | 519-374 | not yet reported which blocks → | Bell Canada | 8051 | Owen Sound | — |
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.