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 |
|---|---|---|---|---|---|---|
| 2023-03-16 | 548-508 | not yet reported which blocks → | IXICA Communications Inc. | 812H | London | — |
| 2021-11-12 | 548-440 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Kitchener-Waterloo | — |
| 2021-11-12 | 548-470 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Hespeler | — |
| 2021-11-12 | 548-520 | not yet reported which blocks → | IXICA Communications Inc. | 812H | New Hamburg | — |
| 2021-11-12 | 548-530 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Preston | — |
| 2021-11-12 | 548-590 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Wellesley | — |
| 2021-11-10 | 548-477 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Galt | — |
| 2021-11-10 | 548-510 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Ayr | — |
| 2021-11-10 | 548-580 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Elmira | — |
| 2021-04-28 | 548-299 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Comber | — |
| 2021-04-28 | 548-399 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Emeryville | — |
| 2021-04-28 | 548-499 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Woodslee | — |
| 2021-04-28 | 548-599 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Wheatley | — |
| 2021-04-28 | 548-699 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Pleasant Park | — |
| 2021-04-28 | 548-799 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Pelee Island | — |
| 2021-04-28 | 548-884 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Maidstone | — |
| 2021-04-14 | 548-408 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Guelph | — |
| 2021-04-05 | 548-808 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Guelph | — |
| 2021-01-20 | 548-200 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Belle River | — |
| 2021-01-20 | 548-300 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Stoney Point | — |
| 2021-01-20 | 548-400 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Essex | — |
| 2021-01-20 | 548-448 | not yet reported which blocks → | IXICA Communications Inc. | 812H | McGregor | — |
| 2021-01-20 | 548-500 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Kingsville | — |
| 2021-01-20 | 548-600 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Harrow | — |
| 2021-01-20 | 548-666 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Tecumseh | — |
| 2021-01-20 | 548-700 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Leamington | — |
| 2021-01-19 | 548-444 | not yet reported which blocks → | IXICA Communications Inc. | 812H | Amherstburg | — |
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.