NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026
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 336
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2019-01-17 | 336-673-4XXX | 4000–4999 | Assigned | UNITED STATES CELLULAR - NC | 6282 | MOUNT AIRY | NC |
| 2018-06-20 | 336-673-2XXX | 2000–2999 | Assigned | UNITED STATES CELLULAR - NC | 6282 | MOUNT AIRY | NC |
| 2018-04-30 | 336-673-7XXX | 7000–7999 | Assigned | UNITED STATES CELLULAR - NC | 6282 | MOUNT AIRY | NC |
| 2018-02-06 | 336-990-8XXX | 8000–8999 | Assigned | UNITED STATES CELLULAR - NC | 6282 | NOWILKESBO | NC |
| 2017-08-01 | 336-836-1XXX | 1000–1999 | Assigned | UNITED STATES CELLULAR - NC | 6282 | RED BRUSH | NC |
| 2016-12-06 | 336-200-5XXX | 5000–5999 | Assigned | UNITED STATES CELLULAR - NC | 6282 | ROARINGGAP | NC |
| 2016-12-06 | 336-200-6XXX | 6000–6999 | Assigned | UNITED STATES CELLULAR - NC | 6282 | ROARINGGAP | NC |
| 2016-12-06 | 336-673-8XXX | 8000–8999 | Assigned | UNITED STATES CELLULAR - NC | 6282 | MOUNT AIRY | NC |
| 2016-12-06 | 336-673-9XXX | 9000–9999 | Assigned | UNITED STATES CELLULAR - NC | 6282 | MOUNT AIRY | NC |
| 2015-08-17 | 336-673-1XXX | 1000–1999 | Assigned | UNITED STATES CELLULAR - NC | 6282 | MOUNT AIRY | NC |
| 2014-08-20 | 336-649-2XXX | 2000–2999 | Assigned | UNITED STATES CELLULAR - NC | 6282 | WJEFFERSON | NC |
| 2014-02-20 | 336-756-6XXX | 6000–6999 | Assigned | UNITED STATES CELLULAR - NC | 6282 | MOUNT AIRY | NC |
| 2012-12-27 | 336-826-1XXX | 1000–1999 | Assigned | UNITED STATES CELLULAR - NC | 6282 | CRESTON | NC |
| 2012-07-31 | 336-826-0XXX | 0000–0999 | Assigned | UNITED STATES CELLULAR - NC | 6282 | CRESTON | NC |
| 2009-03-10 | 336-648-9XXX | 9000–9999 | Assigned | UNITED STATES CELLULAR - NC | 6282 | MOUNT AIRY | NC |
| 2004-01-29 | 336-200-3XXX | 3000–3999 | Assigned | UNITED STATES CELLULAR - NC | 6282 | ROARINGGAP | NC |
| 2004-01-29 | 336-200-4XXX | 4000–4999 | Assigned | UNITED STATES CELLULAR - NC | 6282 | ROARINGGAP | NC |
| 2002-11-19 | 336-648-0XXX | 0000–0999 | Assigned | UNITED STATES CELLULAR - NC | 6282 | MOUNT AIRY | NC |
| 2002-11-19 | 336-648-1XXX | 1000–1999 | Assigned | UNITED STATES CELLULAR - NC | 6282 | MOUNT AIRY | NC |
| 2002-11-18 | 336-648-2XXX | 2000–2999 | Assigned | UNITED STATES CELLULAR - NC | 6282 | MOUNT AIRY | NC |
| 2002-11-18 | 336-648-3XXX | 3000–3999 | Assigned | UNITED STATES CELLULAR - NC | 6282 | MOUNT AIRY | NC |
| 2002-11-18 | 336-648-4XXX | 4000–4999 | Assigned | UNITED STATES CELLULAR - NC | 6282 | MOUNT AIRY | NC |
| 2002-11-18 | 336-648-5XXX | 5000–5999 | Assigned | UNITED STATES CELLULAR - NC | 6282 | MOUNT AIRY | NC |
| 2002-11-18 | 336-648-6XXX | 6000–6999 | Assigned | UNITED STATES CELLULAR - NC | 6282 | MOUNT AIRY | NC |
| 2002-11-18 | 336-648-7XXX | 7000–7999 | Assigned | UNITED STATES CELLULAR - NC | 6282 | MOUNT AIRY | NC |
| 2002-11-18 | 336-649-0XXX | 0000–0999 | Assigned | UNITED STATES CELLULAR - NC | 6282 | WJEFFERSON | NC |
| 2002-11-18 | 336-649-1XXX | 1000–1999 | Assigned | UNITED STATES CELLULAR - NC | 6282 | WJEFFERSON | NC |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.