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 |
|---|---|---|---|---|---|---|
| 2022-03-28 | 548-837 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Hillsburgh | — |
| 2021-12-21 | 548-897 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Sarnia | — |
| 2021-06-15 | 548-834 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Brigden | — |
| 2021-06-15 | 548-835 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Port Lambton | — |
| 2021-06-15 | 548-836 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Sombra | — |
| 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 | — |
| 2018-01-02 | 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 | — |
| 2017-10-26 | 548-898 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | Kitchener-Waterloo | — |
| 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 | — |
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.