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 360
New assignments by month
Sep 2026
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| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2020-11-23 | 360-942-1XXX | 1000–1999 | Assigned | UNITED STATES CELLULAR - WA | 6270 | SOUTH BEND | WA |
| 2020-09-08 | 360-996-2XXX | 2000–2999 | Assigned | UNITED STATES CELLULAR - WA | 6270 | CHEHALIS | WA |
| 2011-09-08 | 360-496-4XXX | 4000–4999 | Assigned | UNITED STATES CELLULAR - WA | 6270 | MORTON | WA |
| 2007-06-14 | 360-783-1XXX | 1000–1999 | Assigned | UNITED STATES CELLULAR - WA | 6270 | LONG BEACH | WA |
| 2007-03-14 | 360-208-3XXX | 3000–3999 | Assigned | UNITED STATES CELLULAR - WA | 6270 | SOUTH BEND | WA |
| 2005-11-23 | 360-496-1XXX | 1000–1999 | Assigned | UNITED STATES CELLULAR - WA | 6270 | MORTON | WA |
| 2005-11-23 | 360-496-8XXX | 8000–8999 | Assigned | UNITED STATES CELLULAR - WA | 6270 | MORTON | WA |
| 2004-05-11 | 360-861-1XXX | 1000–1999 | Assigned | UNITED STATES CELLULAR - WA | 6270 | ELMA | WA |
| 2004-04-27 | 360-208-4XXX | 4000–4999 | Assigned | UNITED STATES CELLULAR - WA | 6270 | SOUTH BEND | WA |
| 2004-04-27 | 360-208-6XXX | 6000–6999 | Assigned | UNITED STATES CELLULAR - WA | 6270 | SOUTH BEND | WA |
| 2003-05-01 | 360-783-2XXX | 2000–2999 | Assigned | UNITED STATES CELLULAR - WA | 6270 | LONG BEACH | WA |
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.