NumberResearchRecent thousands-block assignments
9 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 539
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 | 539-330-2XXX | 2000–2999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | TULSA | OK |
| 2025-03-10 | 539-330-3XXX | 3000–3999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | TULSA | OK |
| 2025-03-10 | 539-330-4XXX | 4000–4999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | TULSA | OK |
| 2025-03-10 | 539-330-5XXX | 5000–5999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | TULSA | OK |
| 2025-03-10 | 539-330-6XXX | 6000–6999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | TULSA | OK |
| 2025-03-10 | 539-330-7XXX | 7000–7999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | TULSA | OK |
| 2025-03-10 | 539-330-8XXX | 8000–8999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | TULSA | OK |
| 2025-03-10 | 539-330-9XXX | 9000–9999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | TULSA | OK |
| 2025-03-10 | 539-332-0XXX | 0000–0999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | TULSA | OK |
| 2025-03-10 | 539-332-1XXX | 1000–1999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | TULSA | OK |
| 2025-03-10 | 539-332-2XXX | 2000–2999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | TULSA | OK |
| 2025-03-10 | 539-332-3XXX | 3000–3999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | TULSA | OK |
| 2025-03-10 | 539-332-4XXX | 4000–4999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | TULSA | OK |
| 2025-03-10 | 539-332-5XXX | 5000–5999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | TULSA | OK |
| 2025-03-10 | 539-332-6XXX | 6000–6999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | TULSA | OK |
| 2025-03-10 | 539-332-7XXX | 7000–7999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | TULSA | OK |
| 2025-03-10 | 539-332-8XXX | 8000–8999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | TULSA | OK |
| 2025-03-10 | 539-332-9XXX | 9000–9999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | TULSA | OK |
| 2025-03-10 | 539-334-0XXX | 0000–0999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | TULSA | OK |
| 2025-03-10 | 539-334-1XXX | 1000–1999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | TULSA | OK |
| 2025-03-10 | 539-334-2XXX | 2000–2999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | TULSA | OK |
| 2025-03-10 | 539-334-3XXX | 3000–3999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | TULSA | OK |
| 2025-03-10 | 539-334-4XXX | 4000–4999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | TULSA | OK |
| 2025-03-10 | 539-334-5XXX | 5000–5999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | TULSA | OK |
| 2025-03-10 | 539-334-6XXX | 6000–6999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | TULSA | OK |
| 2025-03-10 | 539-334-7XXX | 7000–7999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | TULSA | OK |
| 2025-03-10 | 539-334-8XXX | 8000–8999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | TULSA | OK |
| 2025-03-10 | 539-334-9XXX | 9000–9999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | TULSA | OK |
| 2025-03-10 | 539-335-0XXX | 0000–0999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | TULSA | OK |
| 2025-03-10 | 539-335-1XXX | 1000–1999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | TULSA | OK |
| 2025-03-10 | 539-335-2XXX | 2000–2999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | TULSA | OK |
| 2025-03-10 | 539-335-3XXX | 3000–3999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | TULSA | OK |
| 2025-03-10 | 539-335-4XXX | 4000–4999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | TULSA | OK |
| 2025-03-10 | 539-335-5XXX | 5000–5999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | TULSA | OK |
| 2025-03-10 | 539-335-6XXX | 6000–6999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | TULSA | OK |
| 2025-03-10 | 539-335-7XXX | 7000–7999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | TULSA | OK |
| 2025-03-10 | 539-335-8XXX | 8000–8999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | TULSA | OK |
| 2025-03-10 | 539-335-9XXX | 9000–9999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | TULSA | OK |
| 2025-03-10 | 539-338-0XXX | 0000–0999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | TULSA | OK |
| 2025-03-10 | 539-338-1XXX | 1000–1999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | TULSA | OK |
| 2025-03-10 | 539-338-2XXX | 2000–2999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | TULSA | OK |
| 2025-03-10 | 539-338-3XXX | 3000–3999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | TULSA | OK |
| 2025-03-10 | 539-338-4XXX | 4000–4999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | TULSA | OK |
| 2025-03-10 | 539-338-5XXX | 5000–5999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | TULSA | OK |
| 2025-03-10 | 539-338-6XXX | 6000–6999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | TULSA | OK |
| 2025-03-10 | 539-338-7XXX | 7000–7999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | TULSA | OK |
| 2025-03-10 | 539-338-8XXX | 8000–8999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | TULSA | OK |
| 2025-03-10 | 539-338-9XXX | 9000–9999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | TULSA | OK |
| 2025-03-10 | 539-340-0XXX | 0000–0999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | TULSA | OK |
| 2025-03-10 | 539-340-1XXX | 1000–1999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | TULSA | 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.