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 |
|---|---|---|---|---|---|---|
| 2016-05-26 | 249-303 | not yet reported which blocks → | Comwave Networks | 160G | Chub Lake | — |
| 2016-05-26 | 249-404 | not yet reported which blocks → | Comwave Networks | 160G | Elliot Lake | — |
| 2016-05-26 | 249-515 | not yet reported which blocks → | Comwave Networks | 160G | Sturgeon Falls | — |
| 2016-04-29 | 249-299 | not yet reported which blocks → | Comwave Networks | 160G | Bracebridge | — |
| 2016-04-29 | 249-300 | not yet reported which blocks → | Comwave Networks | 160G | Gravenhurst | — |
| 2013-08-16 | 249-265 | not yet reported which blocks → | Comwave Networks | 160G | Oba | — |
| 2013-08-16 | 249-266 | not yet reported which blocks → | Comwave Networks | 160G | Sudbury | — |
| 2013-08-16 | 249-267 | not yet reported which blocks → | Comwave Networks | 160G | Warren | — |
| 2013-08-16 | 249-268 | not yet reported which blocks → | Comwave Networks | 160G | Wawa | — |
| 2013-08-16 | 249-269 | not yet reported which blocks → | Comwave Networks | 160G | Whitefish Falls | — |
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.