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 |
|---|---|---|---|---|---|---|---|
| 2024-07-08 | 559-419-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | KINGSBURG | CA |
| 2024-07-08 | 559-419-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | KINGSBURG | CA |
| 2024-07-08 | 559-419-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | KINGSBURG | CA |
| 2024-07-08 | 559-617-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | KINGSBURG | CA |
| 2024-07-08 | 559-617-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | KINGSBURG | CA |
| 2024-07-08 | 559-912-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FRESNO | CA |
| 2024-07-08 | 559-912-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FRESNO | CA |
| 2024-07-03 | 559-357-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | HANFORD | CA |
| 2024-06-27 | 559-758-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PARLIER | CA |
| 2024-06-24 | 559-390-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | ALPAUGH | CA |
| 2024-06-21 | 559-505-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | MADERA | CA |
| 2024-06-21 | 559-505-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | MADERA | CA |
| 2024-06-21 | 559-613-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | MADERA | CA |
| 2024-06-21 | 559-698-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SANJOAQUIN | CA |
| 2024-06-21 | 559-764-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | MADERA | CA |
| 2024-06-21 | 559-764-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | MADERA | CA |
| 2024-06-21 | 559-764-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | MADERA | CA |
| 2024-06-21 | 559-764-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | MADERA | CA |
| 2024-06-17 | 559-628-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | CLOVIS | CA |
| 2024-06-17 | 559-912-1XXX | 1000–1999 | Assigned | NUSO, LLC | 732J | FRESNO | CA |
| 2024-06-17 | 559-912-2XXX | 2000–2999 | Assigned | NUSO, LLC | 732J | FRESNO | CA |
| 2024-06-13 | 559-912-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7145 | FRESNO | CA |
| 2024-06-12 | 559-215-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SELMA | CA |
| 2024-06-12 | 559-848-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | WOODLAKE | CA |
| 2024-05-28 | 559-676-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | COARSEGOLD | CA |
| 2024-05-28 | 559-717-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | AVENAL | CA |
| 2024-05-15 | 559-357-8XXX | 8000–8999 | Assigned | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 373F | HANFORD | CA |
| 2024-04-08 | 559-883-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | PORTERVL | CA |
| 2024-04-04 | 559-870-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | TULARE | CA |
| 2024-04-04 | 559-894-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | FRESNO | CA |
| 2024-04-04 | 559-894-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | FRESNO | CA |
| 2024-04-04 | 559-894-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | FRESNO | CA |
| 2024-04-04 | 559-894-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | FRESNO | CA |
| 2024-04-04 | 559-894-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | FRESNO | CA |
| 2024-04-04 | 559-894-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | FRESNO | CA |
| 2024-04-04 | 559-894-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | FRESNO | CA |
| 2024-03-29 | 559-357-3XXX | 3000–3999 | Assigned | COMCAST PHONE OF CALIFORNIA, LLC | 394L | HANFORD | CA |
| 2024-03-29 | 559-357-4XXX | 4000–4999 | Assigned | COMCAST PHONE OF CALIFORNIA, LLC | 394L | HANFORD | CA |
| 2024-03-25 | 559-889-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VISALIA | CA |
| 2024-03-25 | 559-889-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VISALIA | CA |
| 2024-03-25 | 559-889-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VISALIA | CA |
| 2024-03-25 | 559-889-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VISALIA | CA |
| 2024-03-25 | 559-889-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VISALIA | CA |
| 2024-03-25 | 559-889-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VISALIA | CA |
| 2024-03-25 | 559-889-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VISALIA | CA |
| 2024-03-25 | 559-889-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VISALIA | CA |
| 2024-03-25 | 559-889-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VISALIA | CA |
| 2024-03-25 | 559-889-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VISALIA | CA |
| 2024-03-22 | 559-200-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | FRESNO | CA |
| 2024-03-22 | 559-200-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | 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.