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 |
|---|---|---|---|---|---|---|---|
| 2005-08-10 | 559-410-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | HANFORD | CA |
| 2005-08-10 | 559-410-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | HANFORD | CA |
| 2005-08-04 | 559-458-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FRESNO | CA |
| 2005-08-04 | 559-458-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FRESNO | CA |
| 2005-08-04 | 559-458-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FRESNO | CA |
| 2005-08-04 | 559-458-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FRESNO | CA |
| 2005-08-04 | 559-579-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FRESNO | CA |
| 2005-08-04 | 559-579-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FRESNO | CA |
| 2005-08-04 | 559-579-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FRESNO | CA |
| 2005-08-04 | 559-579-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FRESNO | CA |
| 2005-08-04 | 559-579-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FRESNO | CA |
| 2005-08-04 | 559-579-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FRESNO | CA |
| 2005-08-04 | 559-975-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MADERA | CA |
| 2005-08-03 | 559-375-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | FRESNO | CA |
| 2005-07-26 | 559-472-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | CLOVIS | CA |
| 2005-07-11 | 559-344-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | FOWLER | CA |
| 2005-07-08 | 559-332-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | SQUAW VLY | CA |
| 2005-07-07 | 559-241-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | FRESNO | CA |
| 2005-07-06 | 559-335-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | GRANTGROVE | CA |
| 2005-07-06 | 559-336-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | MIRANTPHST | CA |
| 2005-07-06 | 559-340-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | DUNLAP | CA |
| 2005-07-06 | 559-366-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | TULARE | CA |
| 2005-07-06 | 559-370-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | THREERIVRS | CA |
| 2005-07-06 | 559-427-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | PIXLEY | CA |
| 2005-07-06 | 559-483-9XXX | 9000–9999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | SPRINGVL | CA |
| 2005-07-06 | 559-527-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | TERRABELLA | CA |
| 2005-07-06 | 559-529-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | TIPTON | CA |
| 2005-07-06 | 559-565-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | SEQUOIA | CA |
| 2005-07-06 | 559-568-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | LINDSAY | CA |
| 2005-07-06 | 559-742-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | RIVERDALE | CA |
| 2005-07-06 | 559-762-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | CORCORAN | CA |
| 2005-07-06 | 559-772-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | HANFORD | CA |
| 2005-07-06 | 559-817-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | LEMOORE | CA |
| 2005-07-06 | 559-927-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | STRATFORD | CA |
| 2005-06-30 | 559-994-4XXX | 4000–4999 | Assigned | METROPCS, INC. | 5562 | FRESNO | CA |
| 2005-06-29 | 559-375-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FRESNO | CA |
| 2005-06-29 | 559-375-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FRESNO | CA |
| 2005-06-29 | 559-375-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FRESNO | CA |
| 2005-06-29 | 559-553-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VISALIA | CA |
| 2005-06-29 | 559-553-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VISALIA | CA |
| 2005-06-29 | 559-553-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VISALIA | CA |
| 2005-06-29 | 559-643-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | REEDLEY | CA |
| 2005-06-29 | 559-821-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | COALINGA | CA |
| 2005-06-21 | 559-398-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | BADGER | CA |
| 2005-06-21 | 559-588-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | ALPAUGH | CA |
| 2005-06-21 | 559-715-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | CHOWCHILLA | CA |
| 2005-06-21 | 559-717-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | AVENAL | CA |
| 2005-06-21 | 559-884-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | BURREL | CA |
| 2005-06-17 | 559-356-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | PARLIER | CA |
| 2005-06-16 | 559-331-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | TULARE | 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.