NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026
Most carrier growth happens here, not at the prefix level: under number pooling, carriers receive individual 1,000-number blocks (e.g. 626-470-0XXX) within already-assigned prefixes. Assignments are initial assignments — the current serving carrier of individual numbers may differ due to portability.
Most active assignees, all time — NPA 540
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
Mar 2026
Feb 2026
Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2023-01-10 | 540-647-6XXX | 6000–6999 | Assigned | UNITED STATES CELLULAR - VA | 6283 | ROANOKE | VA |
| 2022-02-09 | 540-794-0XXX | 0000–0999 | Assigned | UNITED STATES CELLULAR - VA | 6283 | ROANOKE | VA |
| 2022-02-09 | 540-794-2XXX | 2000–2999 | Assigned | UNITED STATES CELLULAR - VA | 6283 | ROANOKE | VA |
| 2022-02-09 | 540-794-3XXX | 3000–3999 | Assigned | UNITED STATES CELLULAR - VA | 6283 | ROANOKE | VA |
| 2022-02-09 | 540-794-4XXX | 4000–4999 | Assigned | UNITED STATES CELLULAR - VA | 6283 | ROANOKE | VA |
| 2022-02-09 | 540-794-5XXX | 5000–5999 | Assigned | UNITED STATES CELLULAR - VA | 6283 | ROANOKE | VA |
| 2022-02-09 | 540-794-6XXX | 6000–6999 | Assigned | UNITED STATES CELLULAR - VA | 6283 | ROANOKE | VA |
| 2022-02-09 | 540-794-7XXX | 7000–7999 | Assigned | UNITED STATES CELLULAR - VA | 6283 | ROANOKE | VA |
| 2022-02-09 | 540-794-8XXX | 8000–8999 | Assigned | UNITED STATES CELLULAR - VA | 6283 | ROANOKE | VA |
| 2022-02-09 | 540-794-9XXX | 9000–9999 | Assigned | UNITED STATES CELLULAR - VA | 6283 | ROANOKE | VA |
| 2022-02-09 | 540-979-0XXX | 0000–0999 | Assigned | UNITED STATES CELLULAR - VA | 6283 | ROANOKE | VA |
| 2022-02-09 | 540-979-1XXX | 1000–1999 | Assigned | UNITED STATES CELLULAR - VA | 6283 | ROANOKE | VA |
| 2022-02-09 | 540-979-2XXX | 2000–2999 | Assigned | UNITED STATES CELLULAR - VA | 6283 | ROANOKE | VA |
| 2022-02-09 | 540-979-3XXX | 3000–3999 | Assigned | UNITED STATES CELLULAR - VA | 6283 | ROANOKE | VA |
| 2022-02-09 | 540-979-4XXX | 4000–4999 | Assigned | UNITED STATES CELLULAR - VA | 6283 | ROANOKE | VA |
| 2022-02-09 | 540-979-5XXX | 5000–5999 | Assigned | UNITED STATES CELLULAR - VA | 6283 | ROANOKE | VA |
| 2022-02-09 | 540-979-6XXX | 6000–6999 | Assigned | UNITED STATES CELLULAR - VA | 6283 | ROANOKE | VA |
| 2022-02-09 | 540-979-7XXX | 7000–7999 | Assigned | UNITED STATES CELLULAR - VA | 6283 | ROANOKE | VA |
| 2021-12-23 | 540-695-5XXX | 5000–5999 | Assigned | UNITED STATES CELLULAR - VA | 6283 | FLOYD | VA |
| 2021-12-23 | 540-695-6XXX | 6000–6999 | Assigned | UNITED STATES CELLULAR - VA | 6283 | FLOYD | VA |
| 2021-12-23 | 540-695-7XXX | 7000–7999 | Assigned | UNITED STATES CELLULAR - VA | 6283 | FLOYD | VA |
| 2021-12-23 | 540-695-8XXX | 8000–8999 | Assigned | UNITED STATES CELLULAR - VA | 6283 | FLOYD | VA |
| 2021-12-23 | 540-695-9XXX | 9000–9999 | Assigned | UNITED STATES CELLULAR - VA | 6283 | FLOYD | VA |
| 2021-12-22 | 540-906-1XXX | 1000–1999 | Assigned | UNITED STATES CELLULAR - VA | 6283 | PEARISBURG | VA |
| 2021-12-13 | 540-647-5XXX | 5000–5999 | Assigned | UNITED STATES CELLULAR - VA | 6283 | ROANOKE | VA |
| 2021-11-15 | 540-813-1XXX | 1000–1999 | Assigned | UNITED STATES CELLULAR - VA | 6283 | DUBLIN | VA |
| 2021-05-17 | 540-813-0XXX | 0000–0999 | Assigned | UNITED STATES CELLULAR - VA | 6283 | DUBLIN | VA |
| 2020-10-19 | 540-643-6XXX | 6000–6999 | Assigned | UNITED STATES CELLULAR - VA | 6283 | DUBLIN | VA |
| 2020-04-28 | 540-616-1XXX | 1000–1999 | Assigned | UNITED STATES CELLULAR - VA | 6283 | DUBLIN | VA |
| 2019-10-14 | 540-616-0XXX | 0000–0999 | Assigned | UNITED STATES CELLULAR - VA | 6283 | DUBLIN | VA |
| 2018-07-03 | 540-696-8XXX | 8000–8999 | Assigned | UNITED STATES CELLULAR - VA | 6283 | PEARISBURG | VA |
| 2018-05-02 | 540-691-0XXX | 0000–0999 | Assigned | UNITED STATES CELLULAR - VA | 6283 | COVINGTON | VA |
| 2018-03-06 | 540-696-4XXX | 4000–4999 | Assigned | UNITED STATES CELLULAR - VA | 6283 | PEARISBURG | VA |
| 2016-07-12 | 540-765-0XXX | 0000–0999 | Assigned | UNITED STATES CELLULAR - VA | 6283 | SALEM | VA |
| 2015-11-10 | 540-838-9XXX | 9000–9999 | Assigned | UNITED STATES CELLULAR - VA | 6283 | RADFORD | VA |
| 2012-09-25 | 540-871-2XXX | 2000–2999 | Assigned | UNITED STATES CELLULAR - VA | 6283 | BEDFORD | VA |
| 2003-06-10 | 540-691-3XXX | 3000–3999 | Assigned | UNITED STATES CELLULAR - VA | 6283 | COVINGTON | VA |
| 2003-06-10 | 540-691-4XXX | 4000–4999 | Assigned | UNITED STATES CELLULAR - VA | 6283 | COVINGTON | VA |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.