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.
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| 2012-11-23 | 873-408 | not yet reported which blocks → | TELUS Quebec | 2243 | Ottawa-Hull | — |
| 2012-10-31 | 873-887 | not yet reported which blocks → | Fibernetics Corporation | 464D | Trois-Rivieres | — |
| 2012-10-26 | 873-274 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | La Minerve | — |
| 2012-10-26 | 873-275 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Arundel | — |
| 2012-10-26 | 873-276 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Val David | — |
| 2012-10-26 | 873-277 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | St-Donat-de-Montcalm | — |
| 2012-10-26 | 873-278 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | St-Adolphe-D'Howard | — |
| 2012-10-26 | 873-279 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | St-Jovite | — |
| 2012-10-26 | 873-280 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | St-Faustin | — |
| 2012-10-26 | 873-281 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Ste-Agathe | — |
| 2012-10-26 | 873-282 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Nominingue | — |
| 2012-10-26 | 873-283 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | L'Annonciation | — |
| 2012-10-26 | 873-284 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Labelle | — |
| 2012-10-15 | 873-888 | not yet reported which blocks → | Fibernetics Corporation | 464D | Sherbrooke | — |
| 2012-10-15 | 873-889 | not yet reported which blocks → | Fibernetics Corporation | 464D | Lac-Megantic | — |
| 2012-09-07 | 873-377 | not yet reported which blocks → | TELUS Mobility | 8303 | Drummondville | — |
| 2012-09-05 | 873-378 | not yet reported which blocks → | TELUS Mobility | 8303 | Shawinigan | — |
| 2012-07-23 | 873-624 | not yet reported which blocks → | Videotron Ltd. | 8306 | Frontenac | — |
| 2012-07-19 | 873-585 | not yet reported which blocks → | Telebec Ltee. | 8239 | Frontenac | — |
| 2012-07-17 | 873-622 | not yet reported which blocks → | Videotron Ltd. | 8306 | Woburn | — |
| 2012-07-17 | 873-623 | not yet reported which blocks → | Videotron Ltd. | 8306 | Waterville | — |
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.