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 |
|---|---|---|---|---|---|---|---|
| 2006-01-05 | 559-676-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | COARSEGOLD | CA |
| 2005-12-29 | 559-395-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MADERA | CA |
| 2005-12-29 | 559-395-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MADERA | CA |
| 2005-12-29 | 559-803-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FRESNO | CA |
| 2005-12-29 | 559-803-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FRESNO | CA |
| 2005-12-28 | 559-577-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FRESNO | CA |
| 2005-12-28 | 559-577-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FRESNO | CA |
| 2005-12-28 | 559-577-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FRESNO | CA |
| 2005-12-28 | 559-577-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FRESNO | CA |
| 2005-12-28 | 559-577-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FRESNO | CA |
| 2005-12-28 | 559-577-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FRESNO | CA |
| 2005-12-28 | 559-577-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FRESNO | CA |
| 2005-12-28 | 559-577-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FRESNO | CA |
| 2005-12-28 | 559-577-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FRESNO | CA |
| 2005-12-28 | 559-776-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FRESNO | CA |
| 2005-12-21 | 559-940-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | CLOVIS | CA |
| 2005-12-16 | 559-234-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | CARUTHERS | CA |
| 2005-12-16 | 559-236-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | GRANTGROVE | CA |
| 2005-12-16 | 559-257-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | SELMA | CA |
| 2005-12-16 | 559-334-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | VISALIA | CA |
| 2005-12-16 | 559-344-8XXX | 8000–8999 | Assigned | ONVOY, LLC - CA | 649C | FOWLER | CA |
| 2005-12-16 | 559-523-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | PIXLEY | CA |
| 2005-12-16 | 559-524-5XXX | 5000–5999 | Assigned | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 373F | SANGER | CA |
| 2005-12-16 | 559-527-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | TERRABELLA | CA |
| 2005-12-16 | 559-531-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | TIVYVALLEY | CA |
| 2005-12-16 | 559-532-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | WOODLAKE | CA |
| 2005-12-16 | 559-593-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | CLOVIS | CA |
| 2005-12-16 | 559-743-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | REEDLEY | CA |
| 2005-12-16 | 559-744-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | SPRINGVL | CA |
| 2005-12-16 | 559-745-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | SEQUOIA | CA |
| 2005-12-16 | 559-748-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | EXETER | CA |
| 2005-12-07 | 559-316-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | FOWLER | CA |
| 2005-12-06 | 559-410-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | HANFORD | CA |
| 2005-12-05 | 559-375-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | FRESNO | CA |
| 2005-11-18 | 559-375-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | FRESNO | CA |
| 2005-11-18 | 559-375-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | FRESNO | CA |
| 2005-11-16 | 559-718-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MADERA | CA |
| 2005-11-11 | 559-234-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | CARUTHERS | CA |
| 2005-11-11 | 559-664-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | MADERA | CA |
| 2005-11-09 | 559-238-6XXX | 6000–6999 | Assigned | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | KINGSBURG | CA |
| 2005-11-09 | 559-306-1XXX | 1000–1999 | Assigned | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | PORTERVL | CA |
| 2005-11-09 | 559-366-1XXX | 1000–1999 | Assigned | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | TULARE | CA |
| 2005-11-09 | 559-460-5XXX | 5000–5999 | Assigned | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | SELMA | CA |
| 2005-11-09 | 559-743-3XXX | 3000–3999 | Assigned | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | REEDLEY | CA |
| 2005-11-08 | 559-201-5XXX | 5000–5999 | Assigned | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | CHOWCHILLA | CA |
| 2005-11-02 | 559-639-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | HANFORD | CA |
| 2005-11-02 | 559-708-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FRESNO | CA |
| 2005-11-02 | 559-708-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FRESNO | CA |
| 2005-11-02 | 559-708-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FRESNO | CA |
| 2005-11-02 | 559-708-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FRESNO | 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.