NumberResearchRecent thousands-block assignments
0 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, all time — NPA 559
New assignments by month
Sep 2026
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Oct 2025
| Assigned | Thousands-block | Last 4 digits | Status | Assignee | OCN | Rate center | State |
|---|---|---|---|---|---|---|---|
| 2025-04-22 | 559-913-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | VISALIA | CA |
| 2025-01-22 | 559-695-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | EXETER | CA |
| 2025-01-09 | 559-364-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SANJOAQUIN | CA |
| 2025-01-09 | 559-522-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | LEMON COVE | CA |
| 2025-01-09 | 559-588-2XXX | 2000–2999 | Assigned | ONVOY SPECTRUM, LLC | 624H | ALPAUGH | CA |
| 2025-01-09 | 559-677-5XXX | 5000–5999 | Assigned | ONVOY SPECTRUM, LLC | 624H | BADGER | CA |
| 2025-01-09 | 559-678-5XXX | 5000–5999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SQUAW VLY | CA |
| 2025-01-09 | 559-787-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | TIVYVALLEY | CA |
| 2025-01-09 | 559-844-2XXX | 2000–2999 | Assigned | ONVOY SPECTRUM, LLC | 624H | MIRANTPHST | CA |
| 2025-01-09 | 559-863-6XXX | 6000–6999 | Assigned | ONVOY SPECTRUM, LLC | 624H | DUNLAP | CA |
| 2025-01-09 | 559-910-5XXX | 5000–5999 | Assigned | ONVOY SPECTRUM, LLC | 624H | GRANTGROVE | 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 |
| 2024-12-23 | 559-357-5XXX | 5000–5999 | Assigned | ONVOY SPECTRUM, LLC | 624H | HANFORD | CA |
| 2024-10-02 | 559-919-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | FRESNO | CA |
| 2024-10-02 | 559-919-7XXX | 7000–7999 | Assigned | ONVOY SPECTRUM, LLC | 624H | FRESNO | CA |
| 2024-10-02 | 559-919-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | FRESNO | CA |
| 2024-10-02 | 559-919-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | FRESNO | CA |
| 2023-12-11 | 559-715-7XXX | 7000–7999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CHOWCHILLA | 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 |
| 2023-12-05 | 559-523-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | PIXLEY | CA |
| 2023-12-05 | 559-526-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | STRATFORD | CA |
| 2023-12-05 | 559-528-7XXX | 7000–7999 | Assigned | ONVOY SPECTRUM, LLC | 624H | DINUBA | CA |
| 2023-12-05 | 559-561-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | THREERIVRS | CA |
| 2023-12-05 | 559-565-9XXX | 9000–9999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SEQUOIA | CA |
| 2023-12-05 | 559-571-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | VISALIA | CA |
| 2023-12-05 | 559-742-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | RIVERDALE | CA |
| 2023-12-05 | 559-758-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | PARLIER | CA |
| 2023-12-05 | 559-792-4XXX | 4000–4999 | Assigned | ONVOY SPECTRUM, LLC | 624H | PORTERVL | CA |
| 2023-12-05 | 559-870-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | TULARE | CA |
| 2023-12-05 | 559-874-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | CLOVIS | CA |
| 2023-12-05 | 559-880-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | LEMOORE | CA |
| 2023-12-05 | 559-933-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | FIREBAUGH | CA |
| 2023-12-05 | 559-961-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | COALINGA | CA |
| 2023-12-05 | 559-963-8XXX | 8000–8999 | Assigned | ONVOY SPECTRUM, LLC | 624H | LATON | CA |
| 2023-10-03 | 559-902-3XXX | 3000–3999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SANGER | CA |
| 2023-10-03 | 559-902-5XXX | 5000–5999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SANGER | CA |
| 2023-10-03 | 559-902-6XXX | 6000–6999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SANGER | CA |
| 2023-10-03 | 559-902-7XXX | 7000–7999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SANGER | CA |
| 2023-10-03 | 559-990-2XXX | 2000–2999 | Assigned | ONVOY SPECTRUM, LLC | 624H | SANGER | CA |
| 2023-08-17 | 559-508-0XXX | 0000–0999 | Assigned | ONVOY SPECTRUM, LLC | 624H | FRESNO | CA |
| 2023-08-17 | 559-508-1XXX | 1000–1999 | Assigned | ONVOY SPECTRUM, LLC | 624H | 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.