NumberResearchRecent thousands-block assignments
6 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, last 30 days — NPA 572
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 |
|---|---|---|---|---|---|---|---|
| 2025-03-10 | 572-266-9XXX | 9000–9999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2025-03-10 | 572-267-0XXX | 0000–0999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2025-03-10 | 572-267-1XXX | 1000–1999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2025-03-10 | 572-267-2XXX | 2000–2999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2025-03-10 | 572-267-3XXX | 3000–3999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2025-03-10 | 572-267-4XXX | 4000–4999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2025-03-10 | 572-267-5XXX | 5000–5999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2025-03-10 | 572-267-6XXX | 6000–6999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2025-03-10 | 572-267-7XXX | 7000–7999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2025-03-10 | 572-267-8XXX | 8000–8999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2025-03-10 | 572-267-9XXX | 9000–9999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2025-03-07 | 572-204-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | CHANDLER | OK |
| 2025-03-06 | 572-246-7XXX | 7000–7999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | OKLA CITY | OK |
| 2025-03-03 | 572-248-0XXX | 0000–0999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2025-03-03 | 572-248-1XXX | 1000–1999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2025-03-03 | 572-248-2XXX | 2000–2999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2025-03-03 | 572-248-3XXX | 3000–3999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2025-03-03 | 572-248-4XXX | 4000–4999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2025-03-03 | 572-248-5XXX | 5000–5999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2025-03-03 | 572-248-6XXX | 6000–6999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2025-03-03 | 572-248-7XXX | 7000–7999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2025-03-03 | 572-248-8XXX | 8000–8999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2025-03-03 | 572-248-9XXX | 9000–9999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2025-03-03 | 572-249-0XXX | 0000–0999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2025-03-03 | 572-249-1XXX | 1000–1999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2025-03-03 | 572-249-2XXX | 2000–2999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2025-03-03 | 572-249-3XXX | 3000–3999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2025-03-03 | 572-249-4XXX | 4000–4999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2025-03-03 | 572-249-5XXX | 5000–5999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2025-03-03 | 572-249-6XXX | 6000–6999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2025-03-03 | 572-249-7XXX | 7000–7999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2025-03-03 | 572-249-8XXX | 8000–8999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2025-03-03 | 572-249-9XXX | 9000–9999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2025-03-03 | 572-250-0XXX | 0000–0999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2025-03-03 | 572-250-1XXX | 1000–1999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2025-03-03 | 572-250-8XXX | 8000–8999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2025-03-03 | 572-250-9XXX | 9000–9999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2025-03-03 | 572-251-0XXX | 0000–0999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2025-03-03 | 572-251-1XXX | 1000–1999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2025-03-03 | 572-251-2XXX | 2000–2999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2025-03-03 | 572-251-3XXX | 3000–3999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2025-03-03 | 572-251-4XXX | 4000–4999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2025-03-03 | 572-251-5XXX | 5000–5999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2025-03-03 | 572-251-6XXX | 6000–6999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2025-03-03 | 572-251-7XXX | 7000–7999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2025-03-03 | 572-251-8XXX | 8000–8999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2025-03-03 | 572-251-9XXX | 9000–9999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | OKLA CITY | OK |
| 2025-02-21 | 572-236-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | CHICKASHA | OK |
| 2025-02-21 | 572-246-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | OKLA CITY | OK |
| 2025-02-21 | 572-247-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC - IL | 6534 | OKLA CITY | OK |
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.