NumberResearchRecent thousands-block assignments
22 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, last 30 days — NPA 559
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 |
|---|---|---|---|---|---|---|---|
| 2005-03-23 | 559-367-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | FRESNO | CA |
| 2005-03-22 | 559-801-9XXX | 9000–9999 | Assigned | METROPCS, INC. | 5562 | FRESNO | CA |
| 2005-03-09 | 559-577-1XXX | 1000–1999 | Assigned | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | FRESNO | CA |
| 2005-03-02 | 559-212-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | HANFORD | CA |
| 2005-03-02 | 559-212-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | HANFORD | CA |
| 2005-03-02 | 559-274-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FRESNO | CA |
| 2005-03-02 | 559-320-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FRESNO | CA |
| 2005-03-02 | 559-348-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FRESNO | CA |
| 2005-03-02 | 559-353-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FRESNO | CA |
| 2005-03-02 | 559-367-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FRESNO | CA |
| 2005-03-02 | 559-367-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FRESNO | CA |
| 2005-03-02 | 559-367-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FRESNO | CA |
| 2005-03-02 | 559-367-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FRESNO | CA |
| 2005-03-02 | 559-367-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FRESNO | CA |
| 2005-03-02 | 559-380-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | HANFORD | CA |
| 2005-03-02 | 559-380-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | HANFORD | CA |
| 2005-02-24 | 559-623-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VISALIA | CA |
| 2005-02-24 | 559-623-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VISALIA | CA |
| 2005-02-24 | 559-623-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VISALIA | CA |
| 2005-02-24 | 559-623-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VISALIA | CA |
| 2005-02-24 | 559-623-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VISALIA | CA |
| 2005-02-24 | 559-623-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VISALIA | CA |
| 2005-02-23 | 559-393-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | REEDLEY | CA |
| 2005-02-23 | 559-393-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | REEDLEY | CA |
| 2005-02-23 | 559-393-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | REEDLEY | CA |
| 2005-02-22 | 559-682-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | CARUTHERS | CA |
| 2005-02-22 | 559-718-7XXX | 7000–7999 | Assigned | METROPCS, INC. | 5562 | MADERA | CA |
| 2005-02-18 | 559-776-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | FRESNO | CA |
| 2005-02-18 | 559-776-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | FRESNO | CA |
| 2005-02-18 | 559-776-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | FRESNO | CA |
| 2005-02-11 | 559-329-7XXX | 7000–7999 | Assigned | METROPCS, INC. | 5562 | TULARE | CA |
| 2005-02-07 | 559-838-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | EXETER | CA |
| 2005-02-07 | 559-943-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | DEL REY | CA |
| 2005-01-25 | 559-212-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | HANFORD | CA |
| 2005-01-25 | 559-286-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FRESNO | CA |
| 2005-01-25 | 559-286-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FRESNO | CA |
| 2005-01-25 | 559-286-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FRESNO | CA |
| 2005-01-25 | 559-286-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FRESNO | CA |
| 2005-01-25 | 559-286-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FRESNO | CA |
| 2005-01-25 | 559-367-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FRESNO | CA |
| 2005-01-25 | 559-367-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FRESNO | CA |
| 2005-01-25 | 559-579-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | FRESNO | CA |
| 2005-01-19 | 559-361-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PORTERVL | CA |
| 2005-01-19 | 559-719-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PORTERVL | CA |
| 2005-01-19 | 559-719-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PORTERVL | CA |
| 2005-01-19 | 559-719-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PORTERVL | CA |
| 2005-01-19 | 559-719-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PORTERVL | CA |
| 2005-01-18 | 559-472-7XXX | 7000–7999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | CLOVIS | CA |
| 2005-01-06 | 559-759-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | TULARE | CA |
| 2005-01-05 | 559-399-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | SANGER | CA |
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.