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
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Jan 2026
Dec 2025
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2024-01-19 | 559-882-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | CLOVIS | CA |
| 2024-01-18 | 559-418-7XXX | 7000–7999 | Assigned | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 373F | HURON | CA |
| 2024-01-18 | 559-617-4XXX | 4000–4999 | Assigned | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 373F | KINGSBURG | CA |
| 2024-01-18 | 559-814-8XXX | 8000–8999 | Assigned | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 373F | FOWLER | CA |
| 2024-01-18 | 559-845-6XXX | 6000–6999 | Assigned | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 373F | DINUBA | CA |
| 2024-01-18 | 559-847-1XXX | 1000–1999 | Assigned | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 373F | PARLIER | CA |
| 2024-01-18 | 559-874-4XXX | 4000–4999 | Assigned | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 373F | CLOVIS | CA |
| 2024-01-18 | 559-954-6XXX | 6000–6999 | Assigned | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 373F | EXETER | CA |
| 2024-01-18 | 559-995-9XXX | 9000–9999 | Assigned | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 373F | DEL REY | CA |
| 2024-01-18 | 559-996-1XXX | 1000–1999 | Assigned | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 373F | CORCORAN | CA |
| 2024-01-17 | 559-218-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | FRESNO | CA |
| 2024-01-17 | 559-874-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | CLOVIS | CA |
| 2024-01-17 | 559-881-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | FRESNO | CA |
| 2024-01-17 | 559-881-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | FRESNO | CA |
| 2024-01-17 | 559-881-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | FRESNO | CA |
| 2024-01-17 | 559-881-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | FRESNO | CA |
| 2024-01-17 | 559-881-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | FRESNO | CA |
| 2024-01-17 | 559-964-4XXX | 4000–4999 | Assigned | TERRA NOVA TELECOM INC. | 145J | LATON | CA |
| 2024-01-16 | 559-633-2XXX | 2000–2999 | Assigned | TERRA NOVA TELECOM INC. | 145J | LEMOORE | CA |
| 2024-01-16 | 559-778-9XXX | 9000–9999 | Assigned | ONVOY, LLC - CA | 649C | FRESNO | CA |
| 2024-01-12 | 559-575-7XXX | 7000–7999 | Assigned | TERRA NOVA TELECOM INC. | 145J | CLOVIS | CA |
| 2024-01-12 | 559-594-1XXX | 1000–1999 | Assigned | TERRA NOVA TELECOM INC. | 145J | EXETER | CA |
| 2024-01-12 | 559-694-7XXX | 7000–7999 | Assigned | TERRA NOVA TELECOM INC. | 145J | FIREBAUGH | CA |
| 2024-01-12 | 559-778-8XXX | 8000–8999 | Assigned | ONVOY, LLC - CA | 649C | FRESNO | CA |
| 2024-01-12 | 559-927-4XXX | 4000–4999 | Assigned | TERRA NOVA TELECOM INC. | 145J | STRATFORD | CA |
| 2023-12-22 | 559-296-3XXX | 3000–3999 | Assigned | COMMIO, LLC | 939H | FIREBAUGH | CA |
| 2023-12-22 | 559-337-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | BADGER | CA |
| 2023-12-22 | 559-390-8XXX | 8000–8999 | Assigned | COMMIO, LLC | 939H | ALPAUGH | CA |
| 2023-12-22 | 559-407-6XXX | 6000–6999 | Assigned | COMMIO, LLC | 939H | FIREBAUGH | CA |
| 2023-12-22 | 559-778-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | FRESNO | CA |
| 2023-12-22 | 559-778-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | FRESNO | CA |
| 2023-12-22 | 559-778-2XXX | 2000–2999 | Assigned | COMMIO, LLC | 939H | FRESNO | CA |
| 2023-12-22 | 559-778-3XXX | 3000–3999 | Assigned | COMMIO, LLC | 939H | FRESNO | CA |
| 2023-12-22 | 559-778-4XXX | 4000–4999 | Assigned | COMMIO, LLC | 939H | FRESNO | CA |
| 2023-12-22 | 559-778-5XXX | 5000–5999 | Assigned | COMMIO, LLC | 939H | FRESNO | CA |
| 2023-12-22 | 559-870-2XXX | 2000–2999 | Assigned | COMMIO, LLC | 939H | TULARE | CA |
| 2023-12-22 | 559-870-3XXX | 3000–3999 | Assigned | COMMIO, LLC | 939H | TULARE | CA |
| 2023-12-22 | 559-870-4XXX | 4000–4999 | Assigned | COMMIO, LLC | 939H | TULARE | CA |
| 2023-12-22 | 559-964-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | LATON | CA |
| 2023-12-22 | 559-995-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | DEL REY | CA |
| 2023-12-11 | 559-715-7XXX | 7000–7999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CHOWCHILLA | CA |
| 2023-12-11 | 559-791-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PORTERVL | CA |
| 2023-12-05 | 559-215-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SELMA | CA |
| 2023-12-05 | 559-219-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | TIPTON | CA |
| 2023-12-05 | 559-282-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | AVENAL | CA |
| 2023-12-05 | 559-424-6XXX | 6000–6999 | Assigned | ONVOY SPECTRUM, LLC | 624H | MENDOTA | CA |
| 2023-12-05 | 559-462-4XXX | 4000–4999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SPRINGVL | CA |
| 2023-12-05 | 559-464-4XXX | 4000–4999 | Assigned | ONVOY SPECTRUM, LLC | 624H | TERRABELLA | CA |
| 2023-12-05 | 559-505-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | MADERA | CA |
| 2023-12-05 | 559-521-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | DEL REY | 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.