NumberResearchRecent thousands-block assignments
21 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, 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 |
|---|---|---|---|---|---|---|---|
| 2016-02-26 | 559-869-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | KINGSBURG | CA |
| 2016-02-26 | 559-869-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | KINGSBURG | CA |
| 2016-02-26 | 559-885-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | CARUTHERS | CA |
| 2016-02-26 | 559-885-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | CARUTHERS | CA |
| 2016-02-26 | 559-888-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | DEL REY | CA |
| 2016-02-26 | 559-888-9XXX | 9000–9999 | Assigned | ONVOY, LLC - CA | 649C | DEL REY | CA |
| 2016-02-24 | 559-425-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CA | 649C | ORANGECOVE | CA |
| 2016-02-24 | 559-425-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | ORANGECOVE | CA |
| 2016-02-24 | 559-648-8XXX | 8000–8999 | Assigned | ONVOY, LLC - CA | 649C | DINUBA | CA |
| 2016-02-24 | 559-648-9XXX | 9000–9999 | Assigned | ONVOY, LLC - CA | 649C | DINUBA | CA |
| 2016-02-23 | 559-657-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | FIREBAUGH | CA |
| 2016-02-23 | 559-657-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | FIREBAUGH | CA |
| 2016-02-23 | 559-821-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | COALINGA | CA |
| 2016-02-23 | 559-821-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | COALINGA | CA |
| 2016-02-22 | 559-719-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CA | 649C | PORTERVL | CA |
| 2016-02-22 | 559-719-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | PORTERVL | CA |
| 2016-02-12 | 559-377-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | MADERA | CA |
| 2016-02-12 | 559-377-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CA | 649C | MADERA | CA |
| 2016-02-12 | 559-775-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | CHOWCHILLA | CA |
| 2016-02-12 | 559-775-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | CHOWCHILLA | CA |
| 2016-02-02 | 559-538-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7145 | FRESNO | CA |
| 2016-01-21 | 559-899-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | FRESNO | CA |
| 2016-01-08 | 559-715-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA | 7128 | CHOWCHILLA | CA |
| 2016-01-05 | 559-770-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | CLOVIS | CA |
| 2015-12-29 | 559-724-9XXX | 9000–9999 | Assigned | COMCAST PHONE OF CALIFORNIA, LLC | 394L | FRESNO | CA |
| 2015-12-18 | 559-399-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SANGER | CA |
| 2015-12-17 | 559-721-6XXX | 6000–6999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | FRESNO | CA |
| 2015-12-16 | 559-712-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | CLOVIS | CA |
| 2015-12-16 | 559-719-3XXX | 3000–3999 | Assigned | METROPCS, INC. | 5562 | PORTERVL | CA |
| 2015-12-16 | 559-721-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | FRESNO | CA |
| 2015-12-16 | 559-721-9XXX | 9000–9999 | Assigned | METROPCS, INC. | 5562 | FRESNO | CA |
| 2015-12-16 | 559-725-0XXX | 0000–0999 | Assigned | METROPCS, INC. | 5562 | DINUBA | CA |
| 2015-12-09 | 559-258-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | DEL REY | CA |
| 2015-12-09 | 559-258-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | DEL REY | CA |
| 2015-12-09 | 559-535-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | TERRABELLA | CA |
| 2015-12-09 | 559-535-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | TERRABELLA | CA |
| 2015-12-09 | 559-535-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | TERRABELLA | CA |
| 2015-12-09 | 559-535-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | TERRABELLA | CA |
| 2015-12-09 | 559-542-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SPRINGVL | CA |
| 2015-12-09 | 559-542-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SPRINGVL | CA |
| 2015-12-09 | 559-542-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SPRINGVL | CA |
| 2015-12-09 | 559-542-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SPRINGVL | CA |
| 2015-12-09 | 559-769-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | WOODLAKE | CA |
| 2015-12-09 | 559-769-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | WOODLAKE | CA |
| 2015-12-07 | 559-404-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | COALINGA | CA |
| 2015-12-07 | 559-404-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | COALINGA | CA |
| 2015-12-07 | 559-762-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | CORCORAN | CA |
| 2015-12-07 | 559-762-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | CORCORAN | CA |
| 2015-12-07 | 559-770-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | CLOVIS | CA |
| 2015-12-07 | 559-770-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | CLOVIS | CA |
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.