NumberResearchRecent prefix assignments
372 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
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Jan 2026
Dec 2025
Nov 2025
Quick find in this area code:
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| — | 519-244 | not yet reported which blocks → | Bell Canada | 8051 | Hespeler | — |
| — | 519-245 | not yet reported which blocks → | Bell Canada | 8051 | Strathroy | — |
| — | 519-246 | not yet reported which blocks → | Bell Canada | 8051 | Strathroy | — |
| — | 519-247 | not yet reported which blocks → | Bell Canada | 8051 | Kerwood | — |
| — | 519-249 | not yet reported which blocks → | Bell Canada | 8051 | Hespeler | — |
| — | 519-250 | not yet reported which blocks → | Bell Canada | 8051 | Windsor | — |
| — | 519-251 | not yet reported which blocks → | Bell Canada | 8051 | Windsor | — |
| — | 519-252 | not yet reported which blocks → | Bell Canada | 8051 | Windsor | — |
| — | 519-253 | not yet reported which blocks → | Bell Canada | 8051 | Windsor | — |
| — | 519-254 | not yet reported which blocks → | Bell Canada | 8051 | Windsor | — |
| — | 519-255 | not yet reported which blocks → | Bell Canada | 8051 | Windsor | — |
| — | 519-256 | not yet reported which blocks → | Bell Canada | 8051 | Windsor | — |
| — | 519-257 | not yet reported which blocks → | Bell Canada | 8051 | Windsor | — |
| — | 519-258 | not yet reported which blocks → | Bell Canada | 8051 | Windsor | — |
| — | 519-259 | not yet reported which blocks → | Bell Canada | 8051 | Windsor | — |
| — | 519-262 | not yet reported which blocks → | Bell Canada | 8051 | Hensall | — |
| — | 519-263 | not yet reported which blocks → | Tuckersmith Communications Co-operative Ltd. | 8240 | Hensall Independent | — |
| — | 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 | — |
| — | 519-296 | not yet reported which blocks → | Execulink Telecom Inc. | 8216 | Thedford | — |
| — | 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 | — |
| — | 519-327 | not yet reported which blocks → | Wightman Telephone Ltd. | 8245 | Clifford | — |
| — | 519-330 | not yet reported which blocks → | TELUS Mobility | 8303 | Sarnia | — |
| — | 519-331 | not yet reported which blocks → | Bell Mobility | 6574 | Sarnia | — |
| — | 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 | — |
| — | 519-335 | not yet reported which blocks → | Wightman Telephone Ltd. | 8245 | Gorrie | — |
| — | 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 | — |
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.