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 |
|---|---|---|---|---|---|---|
| 2010-09-13 | 438-876 | not yet reported which blocks → | TELUS Mobility | 8303 | Montreal | — |
| 2010-07-27 | 438-871 | not yet reported which blocks → | TELUS Mobility | 8303 | Montreal | — |
| 2010-07-27 | 438-872 | not yet reported which blocks → | TELUS Mobility | 8303 | Montreal | — |
| 2010-07-27 | 438-873 | not yet reported which blocks → | TELUS Mobility | 8303 | Montreal | — |
| 2010-07-27 | 438-874 | not yet reported which blocks → | TELUS Mobility | 8303 | Montreal | — |
| 2009-10-30 | 438-879 | not yet reported which blocks → | TELUS Mobility | 8303 | Montreal | — |
| 2009-10-28 | 438-877 | not yet reported which blocks → | TELUS Mobility | 8303 | Montreal | — |
| 2009-10-28 | 438-878 | not yet reported which blocks → | TELUS Mobility | 8303 | Montreal | — |
| 2009-10-21 | 438-869 | not yet reported which blocks → | TELUS Mobility | 8303 | Montreal | — |
| 2009-10-21 | 438-870 | not yet reported which blocks → | TELUS Mobility | 8303 | Montreal | — |
| 2009-10-16 | 438-764 | not yet reported which blocks → | TELUS Mobility | 8303 | Montreal | — |
| 2009-03-05 | 438-838 | not yet reported which blocks → | TELUS Mobility | 8303 | Montreal | — |
| 2008-10-09 | 438-884 | not yet reported which blocks → | TELUS Mobility | 8303 | Montreal | — |
| 2008-10-09 | 438-889 | not yet reported which blocks → | TELUS Mobility | 8303 | Montreal | — |
| 2008-06-25 | 438-580 | not yet reported which blocks → | TELUS Mobility | 8303 | Montreal | — |
| 2008-06-19 | 438-880 | not yet reported which blocks → | TELUS Mobility | 8303 | Montreal | — |
| 2008-06-19 | 438-881 | not yet reported which blocks → | TELUS Mobility | 8303 | Montreal | — |
| 2008-06-19 | 438-882 | not yet reported which blocks → | TELUS Mobility | 8303 | Montreal | — |
| 2008-06-19 | 438-883 | not yet reported which blocks → | TELUS Mobility | 8303 | Montreal | — |
| 2008-06-19 | 438-885 | not yet reported which blocks → | TELUS Mobility | 8303 | Montreal | — |
| 2008-06-19 | 438-886 | not yet reported which blocks → | TELUS Mobility | 8303 | Montreal | — |
| 2008-06-19 | 438-887 | not yet reported which blocks → | TELUS Mobility | 8303 | Montreal | — |
| 2008-04-08 | 438-868 | not yet reported which blocks → | TELUS Mobility | 8303 | Montreal | — |
| 2008-04-08 | 438-888 | not yet reported which blocks → | TELUS Mobility | 8303 | Montreal | — |
| 2007-04-24 | 438-777 | not yet reported which blocks → | TELUS Mobility | 8303 | Montreal | — |
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.