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 |
|---|---|---|---|---|---|---|
| 2022-05-17 | 236-952 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Yarrow | — |
| 2022-05-16 | 236-617 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Hope | — |
| 2022-05-16 | 236-618 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Mission | — |
| 2022-05-16 | 236-805 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Rosedale | — |
| 2022-05-16 | 236-806 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Sardis | — |
| 2022-05-16 | 236-951 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Yale | — |
| 2021-09-14 | 236-502 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | White Rock | — |
| 2021-09-14 | 236-503 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Whonnock | — |
| 2021-09-14 | 236-770 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Britannia Beach | — |
| 2021-09-14 | 236-771 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Pitt Meadows | — |
| 2021-09-14 | 236-772 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Squamish | — |
| 2021-09-13 | 236-890 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Haney | — |
| 2021-09-13 | 236-891 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Ladner | — |
| 2021-09-13 | 236-901 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Boston Bar | — |
| 2021-09-13 | 236-902 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Bowen Island | — |
| 2021-07-27 | 236-681 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Gulf Islands | — |
| 2021-07-27 | 236-682 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Saanich | — |
| 2021-07-27 | 236-683 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Sooke | — |
| 2020-09-11 | 236-879 | not yet reported which blocks → | ISP Telecom Inc. | 4727 | Port Moody | — |
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.