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 |
|---|---|---|---|---|---|---|---|
| 2023-05-19 | 559-767-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | CLOVIS | CA |
| 2023-05-15 | 559-714-9XXX | 9000–9999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | ORANGECOVE | CA |
| 2023-05-12 | 559-774-4XXX | 4000–4999 | Assigned | ONVOY, LLC - CA | 649C | FRESNO | CA |
| 2023-05-12 | 559-774-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | FRESNO | CA |
| 2023-05-09 | 559-815-2XXX | 2000–2999 | Assigned | ONVOY SPECTRUM, LLC | 624H | FRESNO | CA |
| 2023-05-09 | 559-815-3XXX | 3000–3999 | Assigned | ONVOY SPECTRUM, LLC | 624H | FRESNO | CA |
| 2023-05-09 | 559-815-4XXX | 4000–4999 | Assigned | ONVOY SPECTRUM, LLC | 624H | FRESNO | CA |
| 2023-05-09 | 559-815-5XXX | 5000–5999 | Assigned | ONVOY SPECTRUM, LLC | 624H | FRESNO | CA |
| 2023-05-09 | 559-815-6XXX | 6000–6999 | Assigned | ONVOY SPECTRUM, LLC | 624H | FRESNO | CA |
| 2023-05-08 | 559-996-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | CORCORAN | CA |
| 2023-05-05 | 559-401-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | AVENAL | CA |
| 2023-05-05 | 559-773-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | LEMOORE | CA |
| 2023-05-04 | 559-808-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | LINDSAY | CA |
| 2023-05-03 | 559-830-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VISALIA | CA |
| 2023-05-03 | 559-830-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VISALIA | CA |
| 2023-05-03 | 559-830-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VISALIA | CA |
| 2023-05-03 | 559-830-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VISALIA | CA |
| 2023-05-03 | 559-830-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VISALIA | CA |
| 2023-05-03 | 559-830-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VISALIA | CA |
| 2023-05-03 | 559-830-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VISALIA | CA |
| 2023-05-03 | 559-830-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VISALIA | CA |
| 2023-05-03 | 559-830-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VISALIA | CA |
| 2023-05-03 | 559-830-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VISALIA | CA |
| 2023-05-03 | 559-839-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VISALIA | CA |
| 2023-05-03 | 559-839-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VISALIA | CA |
| 2023-05-03 | 559-839-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VISALIA | CA |
| 2023-05-03 | 559-839-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VISALIA | CA |
| 2023-05-03 | 559-839-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VISALIA | CA |
| 2023-04-20 | 559-815-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | FRESNO | CA |
| 2023-04-20 | 559-815-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | FRESNO | CA |
| 2023-04-20 | 559-815-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | FRESNO | CA |
| 2023-04-19 | 559-818-1XXX | 1000–1999 | Assigned | NUSO, LLC | 732J | CLOVIS | CA |
| 2023-04-14 | 559-342-1XXX | 1000–1999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | PIXLEY | CA |
| 2023-04-14 | 559-414-4XXX | 4000–4999 | Assigned | BOOST SUBSCRIBERCO L.L.C. | 490J | CORCORAN | CA |
| 2023-04-13 | 559-378-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | TULARE | CA |
| 2023-04-13 | 559-378-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | TULARE | CA |
| 2023-04-13 | 559-831-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | MADERA | CA |
| 2023-04-07 | 559-939-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | FRESNO | CA |
| 2023-04-05 | 559-820-0XXX | 0000–0999 | Assigned | TELNYX LLC | 073H | VISALIA | CA |
| 2023-03-31 | 559-808-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | LINDSAY | CA |
| 2023-03-31 | 559-996-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | CORCORAN | CA |
| 2023-03-30 | 559-767-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | CLOVIS | CA |
| 2023-03-29 | 559-902-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SANGER | CA |
| 2023-03-16 | 559-576-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PORTERVL | CA |
| 2023-03-16 | 559-716-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MADERA | CA |
| 2023-03-10 | 559-627-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VISALIA | CA |
| 2023-03-10 | 559-740-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VISALIA | CA |
| 2023-03-10 | 559-809-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VISALIA | CA |
| 2023-03-10 | 559-809-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VISALIA | CA |
| 2023-03-10 | 559-809-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VISALIA | 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.