NumberResearchRecent prefix assignments
0 prefixes assigned in the last 30 days · from the daily NANPA CO code file, 09/19/2026
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, all time — NPA 519
New assignments by month
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Oct 2025
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| 2000-10-19 | 519-820 | not yet reported which blocks → | Bell Mobility | 6574 | Guelph | — |
| 2000-10-11 | 519-440 | not yet reported which blocks → | Bell Canada | 8051 | Goderich | — |
| 2000-10-10 | 519-230 | not yet reported which blocks → | Bell Canada | 8051 | Hespeler | — |
| 2000-10-02 | 519-350 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Chatham | — |
| 2000-10-02 | 519-378 | not yet reported which blocks → | Bell Canada | 8051 | Owen Sound | — |
| 2000-10-02 | 519-531 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Wingham | — |
| 2000-09-19 | 519-636 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | London | — |
| 2000-09-19 | 519-639 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | London | — |
| 2000-09-12 | 519-437 | not yet reported which blocks → | Bell Canada | 8051 | Chatham | — |
| 2000-09-11 | 519-809 | not yet reported which blocks → | TELUS Mobility | 8303 | Chatham | — |
| 2000-09-08 | 519-551 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Windsor | — |
| 2000-09-01 | 519-802 | not yet reported which blocks → | TELUS Mobility | 8303 | Brantford | — |
| 2000-09-01 | 519-803 | not yet reported which blocks → | TELUS Mobility | 8303 | Guelph | — |
| 2000-09-01 | 519-806 | not yet reported which blocks → | TELUS Mobility | 8303 | Orangeville | — |
| 2000-09-01 | 519-807 | not yet reported which blocks → | TELUS Mobility | 8303 | Kitchener-Waterloo | — |
| 2000-08-30 | 519-381 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Sarnia | — |
| 2000-08-23 | 519-701 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | London | — |
| 2000-08-23 | 519-731 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Guelph | — |
| 2000-08-18 | 519-532 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Woodstock | — |
| 2000-08-18 | 519-730 | not yet reported which blocks → | Bell Canada | 8051 | Amherstburg | — |
| 2000-08-11 | 519-801 | not yet reported which blocks → | TELUS Mobility | 8303 | Stratford | — |
| 2000-07-27 | 519-568 | not yet reported which blocks → | Bell Canada | 8051 | Kitchener-Waterloo | — |
| 2000-07-19 | 519-530 | not yet reported which blocks → | Bell Canada | 8051 | Wingham | — |
| 2000-07-19 | 519-921 | not yet reported which blocks → | Bell Canada | 8051 | Durham | — |
| 2000-07-19 | 519-989 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 8377 | Windsor | — |
| 2000-07-17 | 519-201 | not yet reported which blocks → | Zayo Canada Inc. | 8304 | Preston | — |
| 2000-07-17 | 519-224 | not yet reported which blocks → | Zayo Canada Inc. | 8304 | Hespeler | — |
| 2000-07-17 | 519-629 | not yet reported which blocks → | Zayo Canada Inc. | 8304 | Galt | — |
| 2000-07-14 | 519-991 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Windsor | — |
| 2000-07-13 | 519-217 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Orangeville | — |
| 2000-07-13 | 519-494 | not yet reported which blocks → | Bell Mobility | 6574 | London | — |
| 2000-07-13 | 519-501 | not yet reported which blocks → | Bell Mobility | 6574 | Kitchener-Waterloo | — |
| 2000-06-28 | 519-818 | not yet reported which blocks → | TELUS Mobility | 8303 | Windsor | — |
| 2000-06-22 | 519-937 | not yet reported which blocks → | TELUS Integrated Communications | 2782 | London | — |
| 2000-06-01 | 519-780 | not yet reported which blocks → | Bell Canada | 8051 | Guelph | — |
| 2000-05-19 | 519-907 | not yet reported which blocks → | Rogers Communications Canada Inc. (Cable) | 8377 | London | — |
| 2000-05-19 | 519-957 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Kitchener-Waterloo | — |
| 2000-05-12 | 519-384 | not yet reported which blocks → | Bell Canada | 8051 | Sarnia | — |
| 2000-05-12 | 519-890 | not yet reported which blocks → | TELUS Mobility | 8303 | Windsor | — |
| 2000-05-03 | 519-591 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Kitchener-Waterloo | — |
| 2000-04-26 | 519-288 | not yet reported which blocks → | TELUS Mobility | 8303 | Orangeville | — |
| 2000-04-13 | 519-216 | not yet reported which blocks → | TELUS Mobility | 8303 | Orangeville | — |
| 2000-04-06 | 519-721 | not yet reported which blocks → | Fido Solutions Inc. | 5643 | Kitchener-Waterloo | — |
| 2000-03-15 | 519-276 | not yet reported which blocks → | Bell Canada | 8051 | Stratford | — |
| 2000-03-15 | 519-720 | not yet reported which blocks → | Bell Canada | 8051 | Brantford | — |
| 2000-02-22 | 519-982 | not yet reported which blocks → | Bell Mobility | 6574 | Windsor | — |
| 2000-02-16 | 519-488 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | London | — |
| 2000-02-10 | 519-223 | not yet reported which blocks → | TELUS Mobility | 8303 | Hespeler | — |
| 2000-02-10 | 519-489 | not yet reported which blocks → | Rogers Communications Canada Inc. (Wireless) | 8821 | Kitchener-Waterloo | — |
| 2000-01-31 | 519-789 | not yet reported which blocks → | Managed Network Systems Inc. | 2776 | London | — |
Source: NANPA CO Code Assignments (Utilized, All States, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.