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 |
|---|---|---|---|---|---|---|---|
| 2025-01-07 | 559-478-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | FRESNO | CA |
| 2025-01-07 | 559-478-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | FRESNO | CA |
| 2025-01-07 | 559-478-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | FRESNO | CA |
| 2025-01-07 | 559-629-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | FRESNO | CA |
| 2025-01-07 | 559-764-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | MADERA | CA |
| 2025-01-07 | 559-803-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | FRESNO | CA |
| 2025-01-07 | 559-882-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | CLOVIS | CA |
| 2025-01-06 | 559-510-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | TULARE | CA |
| 2025-01-06 | 559-594-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | EXETER | CA |
| 2025-01-06 | 559-748-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | EXETER | CA |
| 2025-01-06 | 559-870-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | TULARE | CA |
| 2025-01-06 | 559-870-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | TULARE | CA |
| 2025-01-03 | 559-863-8XXX | 8000–8999 | Assigned | TWILIO INTERNATIONAL, INC. | 506J | DUNLAP | CA |
| 2025-01-03 | 559-926-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | FOWLER | CA |
| 2025-01-02 | 559-886-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CORCORAN | CA |
| 2025-01-02 | 559-937-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | REEDLEY | CA |
| 2024-12-30 | 559-372-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VISALIA | CA |
| 2024-12-30 | 559-787-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | TIVYVALLEY | CA |
| 2024-12-30 | 559-913-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VISALIA | CA |
| 2024-12-30 | 559-932-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VISALIA | CA |
| 2024-12-30 | 559-932-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VISALIA | CA |
| 2024-12-30 | 559-932-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VISALIA | CA |
| 2024-12-30 | 559-932-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VISALIA | CA |
| 2024-12-30 | 559-932-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VISALIA | CA |
| 2024-12-30 | 559-932-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VISALIA | CA |
| 2024-12-30 | 559-932-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VISALIA | CA |
| 2024-12-30 | 559-932-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VISALIA | CA |
| 2024-12-30 | 559-932-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VISALIA | CA |
| 2024-12-30 | 559-932-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VISALIA | CA |
| 2024-12-23 | 559-357-5XXX | 5000–5999 | Assigned | ONVOY SPECTRUM, LLC | 624H | HANFORD | CA |
| 2024-12-20 | 559-532-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | WOODLAKE | CA |
| 2024-12-20 | 559-595-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | DINUBA | CA |
| 2024-12-20 | 559-773-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | LEMOORE | CA |
| 2024-12-20 | 559-880-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | LEMOORE | CA |
| 2024-12-19 | 559-249-7XXX | 7000–7999 | Assigned | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 373F | ORANGECOVE | CA |
| 2024-12-16 | 559-379-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | LINDSAY | CA |
| 2024-12-16 | 559-632-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | RIVERDALE | CA |
| 2024-12-03 | 559-478-8XXX | 8000–8999 | Assigned | TERRA NOVA TELECOM INC. | 145J | FRESNO | CA |
| 2024-12-03 | 559-742-7XXX | 7000–7999 | Assigned | TERRA NOVA TELECOM INC. | 145J | RIVERDALE | CA |
| 2024-12-03 | 559-836-5XXX | 5000–5999 | Assigned | TERRA NOVA TELECOM INC. | 145J | HANFORD | CA |
| 2024-12-03 | 559-862-0XXX | 0000–0999 | Assigned | TERRA NOVA TELECOM INC. | 145J | CLOVIS | CA |
| 2024-12-03 | 559-870-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | TULARE | CA |
| 2024-11-13 | 559-910-7XXX | 7000–7999 | Assigned | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 373F | GRANTGROVE | CA |
| 2024-11-13 | 559-928-1XXX | 1000–1999 | Assigned | NUSO, LLC | 478J | FRESNO | CA |
| 2024-11-12 | 559-671-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | EXETER | CA |
| 2024-11-12 | 559-813-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FOWLER | CA |
| 2024-11-12 | 559-814-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FOWLER | CA |
| 2024-11-12 | 559-814-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FOWLER | CA |
| 2024-11-12 | 559-882-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | CLOVIS | CA |
| 2024-11-12 | 559-914-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | CLOVIS | 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.