NumberResearchRecent thousands-block assignments
22 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 |
|---|---|---|---|---|---|---|---|
| 2023-10-04 | 559-879-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | VISALIA | CA |
| 2023-10-04 | 559-879-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | VISALIA | CA |
| 2023-10-04 | 559-996-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CA | 649C | CORCORAN | CA |
| 2023-10-04 | 559-996-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | CORCORAN | 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 |
| 2023-10-01 | 559-505-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MADERA | CA |
| 2023-10-01 | 559-505-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MADERA | CA |
| 2023-09-18 | 559-508-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | FRESNO | CA |
| 2023-09-18 | 559-508-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | FRESNO | CA |
| 2023-09-18 | 559-508-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | FRESNO | CA |
| 2023-09-13 | 559-872-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | CLOVIS | CA |
| 2023-09-11 | 559-580-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | COARSEGOLD | CA |
| 2023-09-11 | 559-758-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | PARLIER | CA |
| 2023-09-01 | 559-863-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | DUNLAP | CA |
| 2023-08-29 | 559-508-8XXX | 8000–8999 | Assigned | ONVOY, LLC - CA | 649C | FRESNO | CA |
| 2023-08-25 | 559-768-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | REEDLEY | CA |
| 2023-08-23 | 559-818-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | CLOVIS | CA |
| 2023-08-23 | 559-870-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | TULARE | CA |
| 2023-08-23 | 559-870-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | TULARE | CA |
| 2023-08-23 | 559-872-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | CLOVIS | 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 |
| 2023-08-17 | 559-508-2XXX | 2000–2999 | Assigned | ONVOY SPECTRUM, LLC | 624H | FRESNO | CA |
| 2023-08-17 | 559-508-3XXX | 3000–3999 | Assigned | ONVOY SPECTRUM, LLC | 624H | FRESNO | CA |
| 2023-08-17 | 559-508-4XXX | 4000–4999 | Assigned | ONVOY SPECTRUM, LLC | 624H | FRESNO | CA |
| 2023-08-17 | 559-508-5XXX | 5000–5999 | Assigned | ONVOY SPECTRUM, LLC | 624H | FRESNO | CA |
| 2023-08-17 | 559-807-2XXX | 2000–2999 | Assigned | ONVOY SPECTRUM, LLC | 624H | FRESNO | CA |
| 2023-08-17 | 559-807-3XXX | 3000–3999 | Assigned | ONVOY SPECTRUM, LLC | 624H | FRESNO | CA |
| 2023-08-17 | 559-807-4XXX | 4000–4999 | Assigned | ONVOY SPECTRUM, LLC | 624H | FRESNO | CA |
| 2023-08-17 | 559-815-7XXX | 7000–7999 | Assigned | ONVOY SPECTRUM, LLC | 624H | FRESNO | CA |
| 2023-08-11 | 559-587-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | HANFORD | CA |
| 2023-08-11 | 559-773-6XXX | 6000–6999 | Assigned | ONVOY, LLC - CA | 649C | LEMOORE | CA |
| 2023-08-11 | 559-808-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | LINDSAY | CA |
| 2023-08-11 | 559-845-3XXX | 3000–3999 | Assigned | ONVOY, LLC - CA | 649C | DINUBA | CA |
| 2023-08-10 | 559-219-0XXX | 0000–0999 | Assigned | COMMIO, LLC | 939H | TIPTON | CA |
| 2023-08-10 | 559-219-1XXX | 1000–1999 | Assigned | COMMIO, LLC | 939H | TIPTON | CA |
| 2023-08-10 | 559-219-2XXX | 2000–2999 | Assigned | COMMIO, LLC | 939H | TIPTON | CA |
| 2023-08-10 | 559-219-3XXX | 3000–3999 | Assigned | COMMIO, LLC | 939H | TIPTON | CA |
| 2023-08-10 | 559-219-4XXX | 4000–4999 | Assigned | COMMIO, LLC | 939H | TIPTON | CA |
| 2023-08-10 | 559-818-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | CLOVIS | CA |
| 2023-08-08 | 559-488-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | FRESNO | CA |
| 2023-08-08 | 559-505-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | MADERA | CA |
| 2023-08-08 | 559-505-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | MADERA | CA |
| 2023-08-08 | 559-774-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | FRESNO | CA |
| 2023-08-08 | 559-774-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | FRESNO | CA |
| 2023-08-08 | 559-807-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | FRESNO | 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.