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.
| Assigned | NPA-NXX | Thousands-blocks taken (last-4 opening) | Code holder | OCN | Rate center | State |
|---|---|---|---|---|---|---|
| 2021-09-09 | 540-770 | 0XXX1XXX8XXX9XXX · 2 holders which blocks → | PEERLESS NETWORK OF VIRGINIA, LLC - VA | 275G | HARRISONBG | VA |
| 2019-09-06 | 540-594 | 0–9 XXXall 10 · 5 holders which blocks → | PEERLESS NETWORK OF VIRGINIA, LLC - VA | 275G | MINERAL | VA |
| 2018-11-01 | 540-386 | 0–9 XXXall 10 · 4 holders which blocks → | PEERLESS NETWORK OF VIRGINIA, LLC - VA | 275G | HARTWOOD | VA |
| 2018-02-16 | 540-619 | 0XXX1XXX2XXX5XXX6XXX7XXX8XXX9XXX · 6 holders which blocks → | PEERLESS NETWORK OF VIRGINIA, LLC - VA | 275G | MT GILEAD | VA |
| 2016-08-23 | 540-401 | 0–9 XXXall 10 · 7 holders which blocks → | PEERLESS NETWORK OF VIRGINIA, LLC - VA | 275G | BERRYVILLE | VA |
| 2016-05-25 | 540-496 | 0XXX1XXX7XXX · 2 holders which blocks → | PEERLESS NETWORK OF VIRGINIA, LLC - VA | 275G | CULPEPER | VA |
| 2016-01-04 | 540-698 | 0–9 XXXall 10 · 5 holders which blocks → | PEERLESS NETWORK OF VIRGINIA, LLC - VA | 275G | SHAWSVILLE | VA |
| 2015-06-11 | 540-595 | 0–9 XXXall 10 · 4 holders which blocks → | PEERLESS NETWORK OF VIRGINIA, LLC - VA | 275G | ROANOKE | VA |
| — | 540-744 | 0–9 XXXall 10 · 6 holders which blocks → | PEERLESS NETWORK OF VIRGINIA, LLC - VA | 275G | RADFORD | VA |
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.