NumberResearchRecent prefix assignments
2 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, last 30 days — NPA 548
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 |
|---|---|---|---|---|---|---|
| 2018-03-13 | 548-388 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | London | — |
| 2018-03-13 | 548-588 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | London | — |
| 2018-03-13 | 548-788 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | London | — |
| 2018-03-07 | 548-485 | not yet reported which blocks → | Iristel Inc. | 154E | London | — |
| 2018-02-06 | 548-229 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Watford | — |
| 2018-02-06 | 548-230 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Pelee Island | — |
| 2018-02-06 | 548-231 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Norwich | — |
| 2018-01-24 | 548-333 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Kitchener-Waterloo | — |
| 2018-01-02 | 548-224 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Bothwell | — |
| 2018-01-02 | 548-225 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Burford | — |
| 2017-12-21 | 548-227 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Elmira | — |
| 2017-12-21 | 548-228 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | New Hamburg | — |
| 2017-12-04 | 548-288 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Kitchener-Waterloo | — |
| 2017-12-04 | 548-688 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | London | — |
| 2017-12-04 | 548-880 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Brantford | — |
| 2017-12-04 | 548-988 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Guelph | — |
| 2017-11-21 | 548-483 | not yet reported which blocks → | Iristel Inc. | 154E | Kitchener-Waterloo | — |
| 2017-11-21 | 548-484 | not yet reported which blocks → | Iristel Inc. | 154E | Kitchener-Waterloo | — |
| 2017-11-07 | 548-995 | not yet reported which blocks → | TELUS Mobility | 8303 | Sarnia | — |
| 2017-10-26 | 548-898 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Kitchener-Waterloo | — |
| 2017-09-28 | 548-996 | not yet reported which blocks → | TELUS Mobility | 8303 | Chatham | — |
| 2017-09-28 | 548-997 | not yet reported which blocks → | TELUS Mobility | 8303 | Sarnia | — |
| 2017-09-19 | 548-220 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Harriston | — |
| 2017-09-19 | 548-221 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Mitchell | — |
| 2017-09-19 | 548-222 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Palmerston | — |
| 2017-09-19 | 548-223 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Tavistock | — |
| 2017-08-28 | 548-998 | not yet reported which blocks → | TELUS Mobility | 8303 | Tillsonburg | — |
| 2017-05-11 | 548-980 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 743B | Goderich | — |
| 2017-03-24 | 548-480 | not yet reported which blocks → | Iristel Inc. | 154E | Kitchener-Waterloo | — |
| 2017-03-24 | 548-481 | not yet reported which blocks → | Iristel Inc. | 154E | Kitchener-Waterloo | — |
| 2017-03-24 | 548-482 | not yet reported which blocks → | Iristel Inc. | 154E | London | — |
| 2017-02-08 | 548-216 | not yet reported which blocks → | Bell Canada | 8051 | London | — |
| 2017-02-08 | 548-217 | not yet reported which blocks → | Bell Canada | 8051 | London | — |
| 2017-02-08 | 548-218 | not yet reported which blocks → | Bell Canada | 8051 | Galt | — |
| 2017-02-08 | 548-219 | not yet reported which blocks → | Bell Canada | 8051 | Kitchener-Waterloo | — |
| 2016-10-12 | 548-201 | not yet reported which blocks → | Bell Canada | 8051 | Chatham | — |
| 2016-10-12 | 548-202 | not yet reported which blocks → | Bell Canada | 8051 | Clinton | — |
| 2016-10-12 | 548-203 | not yet reported which blocks → | Bell Canada | 8051 | Sarnia | — |
| 2016-10-12 | 548-204 | not yet reported which blocks → | Bell Canada | 8051 | Windsor | — |
| 2016-10-12 | 548-205 | not yet reported which blocks → | Bell Canada | 8051 | St. Thomas | — |
| 2016-10-12 | 548-206 | not yet reported which blocks → | Bell Canada | 8051 | London | — |
| 2016-10-12 | 548-207 | not yet reported which blocks → | Bell Canada | 8051 | Woodstock | — |
| 2016-10-12 | 548-208 | not yet reported which blocks → | Bell Canada | 8051 | Owen Sound | — |
| 2016-10-12 | 548-209 | not yet reported which blocks → | Bell Canada | 8051 | Guelph | — |
| 2016-10-12 | 548-210 | not yet reported which blocks → | Bell Canada | 8051 | Brantford | — |
| 2016-10-12 | 548-212 | not yet reported which blocks → | Bell Canada | 8051 | Kitchener-Waterloo | — |
| 2016-10-12 | 548-213 | not yet reported which blocks → | Bell Canada | 8051 | Orangeville | — |
| 2016-10-12 | 548-214 | not yet reported which blocks → | Bell Canada | 8051 | Simcoe | — |
| 2016-10-12 | 548-215 | not yet reported which blocks → | Bell Canada | 8051 | Stratford | — |
| 2016-08-10 | 548-882 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Brantford | — |
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.