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 539
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
May 2026
Apr 2026
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Jan 2026
Dec 2025
Nov 2025
Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2025-06-18 | 539-368-0XXX | 0000–0999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | BARTLESVL | OK |
| 2025-06-18 | 539-368-1XXX | 1000–1999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | BARTLESVL | OK |
| 2025-06-18 | 539-368-2XXX | 2000–2999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | BARTLESVL | OK |
| 2025-06-18 | 539-368-3XXX | 3000–3999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | BARTLESVL | OK |
| 2025-06-18 | 539-368-4XXX | 4000–4999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | BARTLESVL | OK |
| 2025-03-10 | 539-327-0XXX | 0000–0999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | TULSA | OK |
| 2025-03-10 | 539-327-1XXX | 1000–1999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | TULSA | OK |
| 2025-03-10 | 539-327-2XXX | 2000–2999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | TULSA | OK |
| 2025-03-10 | 539-327-3XXX | 3000–3999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | TULSA | OK |
| 2025-03-10 | 539-327-4XXX | 4000–4999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | TULSA | OK |
| 2025-03-10 | 539-327-5XXX | 5000–5999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | TULSA | OK |
| 2025-03-10 | 539-327-6XXX | 6000–6999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | TULSA | OK |
| 2025-03-10 | 539-327-7XXX | 7000–7999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | TULSA | OK |
| 2025-03-10 | 539-327-8XXX | 8000–8999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | TULSA | OK |
| 2025-03-10 | 539-327-9XXX | 9000–9999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | TULSA | OK |
| 2025-03-10 | 539-329-0XXX | 0000–0999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | TULSA | OK |
| 2025-03-10 | 539-329-1XXX | 1000–1999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | TULSA | OK |
| 2025-03-10 | 539-329-2XXX | 2000–2999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | TULSA | OK |
| 2025-03-10 | 539-329-3XXX | 3000–3999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | TULSA | OK |
| 2025-03-10 | 539-329-4XXX | 4000–4999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | TULSA | OK |
| 2025-03-10 | 539-329-5XXX | 5000–5999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | TULSA | OK |
| 2025-03-10 | 539-329-6XXX | 6000–6999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | TULSA | OK |
| 2025-03-10 | 539-329-7XXX | 7000–7999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | TULSA | OK |
| 2025-03-10 | 539-329-8XXX | 8000–8999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | TULSA | OK |
| 2025-03-10 | 539-329-9XXX | 9000–9999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | TULSA | OK |
| 2025-03-10 | 539-330-0XXX | 0000–0999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | TULSA | OK |
| 2025-03-10 | 539-330-1XXX | 1000–1999 | Assigned | UNITED STATES CELLULAR - OK | 6272 | TULSA | OK |
| 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 |
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.