NumberResearchRecent prefix assignments
375 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/30/2026
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
New assignments by month
Sep 2026
Aug 2026
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Mar 2026
Feb 2026
Jan 2026
Dec 2025
Nov 2025
Oct 2025
Quick find in this area code:
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| — | 519-831 | not yet reported which blocks → | Bell Mobility | 6574 | Guelph | — |
| — | 519-832 | not yet reported which blocks → | Bruce Municipal Telephone System | 8205 | Port Elgin | — |
| — | 519-833 | not yet reported which blocks → | Bell Canada | 8051 | Erin | — |
| — | 519-834 | not yet reported which blocks → | Bell Canada | 8051 | Oil Springs | — |
| — | 519-835 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Guelph | — |
| — | 519-836 | not yet reported which blocks → | Bell Canada | 8051 | Guelph | — |
| — | 519-837 | not yet reported which blocks → | Bell Canada | 8051 | Guelph | — |
| — | 519-839 | not yet reported which blocks → | Gosfield North Communication Co-operative Ltd. | 8212 | Cottam | — |
| — | 519-841 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Hespeler | — |
| — | 519-842 | not yet reported which blocks → | Bell Canada | 8051 | Tillsonburg | — |
| — | 519-843 | not yet reported which blocks → | Bell Canada | 8051 | Fergus | — |
| — | 519-844 | not yet reported which blocks → | Brooke Telecom Co-operative Ltd. | 8204 | Inwood Independant | — |
| — | 519-845 | not yet reported which blocks → | Bell Canada | 8051 | Wyoming | — |
| — | 519-846 | not yet reported which blocks → | Bell Canada | 8051 | Elora | — |
| — | 519-847 | not yet reported which blocks → | Brooke Telecom Co-operative Ltd. | 8204 | Alvinston Independant | — |
| — | 519-848 | not yet reported which blocks → | Bell Canada | 8051 | Arthur | — |
| — | 519-849 | not yet reported which blocks → | Brooke Telecom Co-operative Ltd. | 8204 | Watford Independent | — |
| — | 519-850 | not yet reported which blocks → | Bell Canada | 8051 | London | — |
| — | 519-851 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | London | — |
| — | 519-852 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | London | — |
| — | 519-853 | not yet reported which blocks → | Bell Canada | 8051 | Acton | — |
| — | 519-854 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | London | — |
| — | 519-855 | not yet reported which blocks → | Bell Canada | 8051 | Hillsburgh | — |
| — | 519-856 | not yet reported which blocks → | Bell Canada | 8051 | Rockwood | — |
| — | 519-857 | not yet reported which blocks → | Bell Mobility | 6574 | London | — |
| — | 519-858 | not yet reported which blocks → | Bell Canada | 8051 | London | — |
| — | 519-859 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | London | — |
| — | 519-861 | not yet reported which blocks → | TELUS Mobility | 8303 | Brantford | — |
| — | 519-862 | not yet reported which blocks → | Bell Canada | 8051 | Corunna | — |
| — | 519-863 | not yet reported which blocks → | Bell Canada | 8051 | Norwich | — |
| — | 519-864 | not yet reported which blocks → | Bell Canada | 8051 | Brigden | — |
| — | 519-865 | not yet reported which blocks → | TELUS Mobility | 8303 | Brantford | — |
| — | 519-866 | not yet reported which blocks → | Persona Communications Inc. | 8202 | Straffordville | — |
| — | 519-867 | not yet reported which blocks → | Bell Canada | 8051 | Courtright | — |
| — | 519-868 | not yet reported which blocks → | Bell Mobility | 6574 | London | — |
| — | 519-869 | not yet reported which blocks → | Bell Canada | 8051 | Bright's Grove | — |
| — | 519-870 | not yet reported which blocks → | Bell Mobility | 6574 | London | — |
| — | 519-871 | not yet reported which blocks → | Bell Mobility | 6574 | London | — |
| — | 519-872 | not yet reported which blocks → | Bell Mobility | 6574 | London | — |
| — | 519-873 | not yet reported which blocks → | Bell Canada | 8051 | London | — |
| — | 519-874 | not yet reported which blocks → | Persona Communications Inc. | 8202 | Port Burwell | — |
| — | 519-875 | not yet reported which blocks → | Bell Canada | 8051 | Langton | — |
| — | 519-876 | not yet reported which blocks → | Bell Canada | 8051 | Watford | — |
| — | 519-877 | not yet reported which blocks → | Bell Canada | 8051 | Brownsville | — |
| — | 519-878 | not yet reported which blocks → | Bell Mobility | 6574 | London | — |
| — | 519-879 | not yet reported which blocks → | Bell Canada | 8051 | Otterville | — |
| — | 519-880 | not yet reported which blocks → | Bell Canada | 8051 | Kitchener-Waterloo | — |
| — | 519-881 | not yet reported which blocks → | Bell Canada | 8051 | Walkerton | — |
| — | 519-882 | not yet reported which blocks → | Bell Canada | 8051 | Petrolia | — |
| — | 519-883 | not yet reported which blocks → | Bell Canada | 8051 | Kitchener-Waterloo | — |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/30/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.