NumberResearchRecent thousands-block assignments
0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026
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 509
New assignments by month
Sep 2026
Aug 2026
Jul 2026
Jun 2026
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Apr 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2011-05-12 | 509-648-8XXX | 8000–8999 | Assigned | INLAND CELLULAR LLC | 1484 | ST JOHN | WA |
| 2011-04-28 | 509-229-7XXX | 7000–7999 | Assigned | INLAND CELLULAR LLC | 1484 | UNIONTOWN | WA |
| 2008-01-02 | 509-796-6XXX | 6000–6999 | Assigned | INLAND CELLULAR LLC | 1477 | REARDAN | WA |
| 2006-10-11 | 509-399-3XXX | 3000–3999 | Assigned | INLAND CELLULAR LLC | 1484 | STARBUCK | WA |
| 2006-10-11 | 509-399-4XXX | 4000–4999 | Assigned | INLAND CELLULAR LLC | 1484 | STARBUCK | WA |
| 2006-08-28 | 509-478-7XXX | 7000–7999 | Assigned | INLAND CELLULAR LLC | 1484 | ROSALIA | WA |
| 2006-08-28 | 509-478-8XXX | 8000–8999 | Assigned | INLAND CELLULAR LLC | 1484 | ROSALIA | WA |
| 2006-01-27 | 509-597-7XXX | 7000–7999 | Assigned | INLAND CELLULAR LLC | 1484 | UNIONTOWN | WA |
| 2005-11-01 | 509-566-7XXX | 7000–7999 | Assigned | INLAND CELLULAR LLC | 1484 | POMEROY | WA |
| 2005-11-01 | 509-566-8XXX | 8000–8999 | Assigned | INLAND CELLULAR LLC | 1484 | POMEROY | WA |
| 2005-03-10 | 509-288-7XXX | 7000–7999 | Assigned | INLAND CELLULAR LLC | 1484 | COLFAX | WA |
| 2005-03-10 | 509-288-8XXX | 8000–8999 | Assigned | INLAND CELLULAR LLC | 1484 | COLFAX | WA |
| 2005-03-10 | 509-988-7XXX | 7000–7999 | Assigned | INLAND CELLULAR LLC | 1477 | ODESSA | WA |
| 2004-05-17 | 509-977-1XXX | 1000–1999 | Assigned | INLAND CELLULAR LLC | 1477 | CRESTON | WA |
| 2004-05-17 | 509-977-2XXX | 2000–2999 | Assigned | INLAND CELLULAR LLC | 1477 | CRESTON | WA |
| 2004-05-13 | 509-348-0XXX | 0000–0999 | Assigned | INLAND CELLULAR LLC | 1477 | DAVENPORT | WA |
| 2004-05-13 | 509-348-1XXX | 1000–1999 | Assigned | INLAND CELLULAR LLC | 1477 | DAVENPORT | WA |
| 2004-05-13 | 509-552-0XXX | 0000–0999 | Assigned | INLAND CELLULAR LLC | 1484 | CLARKSTON | WA |
| 2004-05-13 | 509-552-2XXX | 2000–2999 | Assigned | INLAND CELLULAR LLC | 1484 | CLARKSTON | WA |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.