NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026
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 405
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 |
|---|---|---|---|---|---|---|---|
| 2025-03-03 | 405-244-0XXX | 0000–0999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2025-03-03 | 405-244-1XXX | 1000–1999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2025-03-03 | 405-244-2XXX | 2000–2999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2025-03-03 | 405-244-3XXX | 3000–3999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2025-03-03 | 405-244-4XXX | 4000–4999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2025-03-03 | 405-244-5XXX | 5000–5999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2025-03-03 | 405-244-6XXX | 6000–6999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2025-03-03 | 405-244-7XXX | 7000–7999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2025-03-03 | 405-244-8XXX | 8000–8999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2025-03-03 | 405-244-9XXX | 9000–9999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2021-01-19 | 405-901-3XXX | 3000–3999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | ANADARKO | OK |
| 2020-04-10 | 405-683-4XXX | 4000–4999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | WEWOKA | OK |
| 2019-10-09 | 405-862-1XXX | 1000–1999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2019-10-09 | 405-862-2XXX | 2000–2999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2019-08-26 | 405-862-0XXX | 0000–0999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2019-08-21 | 405-803-4XXX | 4000–4999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2019-07-31 | 405-803-3XXX | 3000–3999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2019-06-24 | 405-803-2XXX | 2000–2999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2019-04-10 | 405-803-0XXX | 0000–0999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2019-01-14 | 405-500-9XXX | 9000–9999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2015-08-14 | 405-444-2XXX | 2000–2999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | PAULS VLY | OK |
| 2014-03-19 | 405-933-9XXX | 9000–9999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | ANADARKO | OK |
| 2014-02-25 | 405-220-0XXX | 0000–0999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | SEMINOLE | OK |
| 2011-05-17 | 405-933-7XXX | 7000–7999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | ANADARKO | OK |
| 2010-05-12 | 405-683-3XXX | 3000–3999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | WEWOKA | OK |
| 2007-11-20 | 405-429-0XXX | 0000–0999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2007-11-20 | 405-429-1XXX | 1000–1999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2007-11-20 | 405-429-2XXX | 2000–2999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2007-11-20 | 405-429-3XXX | 3000–3999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2007-11-13 | 405-264-7XXX | 7000–7999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2007-06-11 | 405-637-0XXX | 0000–0999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2007-06-11 | 405-637-1XXX | 1000–1999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2007-06-11 | 405-637-2XXX | 2000–2999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2007-06-11 | 405-637-3XXX | 3000–3999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2007-06-11 | 405-637-4XXX | 4000–4999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2007-05-01 | 405-220-5XXX | 5000–5999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | SEMINOLE | OK |
| 2007-04-25 | 405-618-4XXX | 4000–4999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2007-04-25 | 405-618-5XXX | 5000–5999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2007-04-25 | 405-618-6XXX | 6000–6999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2007-02-15 | 405-248-5XXX | 5000–5999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2007-02-15 | 405-487-9XXX | 9000–9999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2007-02-15 | 405-532-7XXX | 7000–7999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2007-02-15 | 405-532-8XXX | 8000–8999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2006-10-06 | 405-200-5XXX | 5000–5999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2006-10-06 | 405-200-6XXX | 6000–6999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2006-10-06 | 405-371-4XXX | 4000–4999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2006-10-06 | 405-512-7XXX | 7000–7999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2006-10-06 | 405-512-8XXX | 8000–8999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2006-06-14 | 405-415-6XXX | 6000–6999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2006-06-14 | 405-420-0XXX | 0000–0999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.