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 |
|---|---|---|---|---|---|---|---|
| 2024-09-16 | 559-883-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PORTERVL | CA |
| 2024-09-06 | 559-913-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | VISALIA | CA |
| 2024-08-29 | 559-887-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | TULARE | CA |
| 2024-08-29 | 559-915-0XXX | 0000–0999 | Assigned | T-MOBILE USA, INC. | 6529 | MADERA | CA |
| 2024-08-28 | 559-845-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | DINUBA | CA |
| 2024-08-28 | 559-845-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | DINUBA | CA |
| 2024-08-27 | 559-858-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | HANFORD | CA |
| 2024-08-27 | 559-915-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MADERA | CA |
| 2024-08-26 | 559-812-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | CHOWCHILLA | CA |
| 2024-08-26 | 559-914-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | CLOVIS | CA |
| 2024-08-26 | 559-955-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | TIVYVALLEY | CA |
| 2024-08-20 | 559-851-2XXX | 2000–2999 | Assigned | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 373F | HURON | CA |
| 2024-08-20 | 559-869-0XXX | 0000–0999 | Assigned | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 373F | KINGSBURG | CA |
| 2024-08-20 | 559-913-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | VISALIA | CA |
| 2024-08-20 | 559-914-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | CLOVIS | CA |
| 2024-08-20 | 559-914-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | CLOVIS | CA |
| 2024-08-20 | 559-914-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | CLOVIS | CA |
| 2024-08-20 | 559-914-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | CLOVIS | CA |
| 2024-08-19 | 559-567-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | KERMAN | CA |
| 2024-08-19 | 559-814-3XXX | 3000–3999 | Assigned | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 373F | FOWLER | CA |
| 2024-08-19 | 559-912-0XXX | 0000–0999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7145 | FRESNO | CA |
| 2024-08-19 | 559-954-5XXX | 5000–5999 | Assigned | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 373F | EXETER | CA |
| 2024-08-15 | 559-220-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | LEMOORE | CA |
| 2024-08-15 | 559-357-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | HANFORD | CA |
| 2024-08-15 | 559-880-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | LEMOORE | CA |
| 2024-08-15 | 559-884-9XXX | 9000–9999 | Assigned | TERRA NOVA TELECOM INC. | 145J | BURREL | CA |
| 2024-08-15 | 559-923-2XXX | 2000–2999 | Assigned | TERRA NOVA TELECOM INC. | 145J | LATON | CA |
| 2024-08-15 | 559-927-6XXX | 6000–6999 | Assigned | TERRA NOVA TELECOM INC. | 145J | STRATFORD | CA |
| 2024-08-12 | 559-726-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | REEDLEY | CA |
| 2024-08-12 | 559-883-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PORTERVL | CA |
| 2024-08-12 | 559-887-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | TULARE | CA |
| 2024-08-12 | 559-912-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FRESNO | CA |
| 2024-08-12 | 559-912-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FRESNO | CA |
| 2024-08-12 | 559-912-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FRESNO | CA |
| 2024-08-12 | 559-912-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FRESNO | CA |
| 2024-08-01 | 559-215-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SELMA | CA |
| 2024-08-01 | 559-215-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SELMA | CA |
| 2024-08-01 | 559-215-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SELMA | CA |
| 2024-08-01 | 559-215-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SELMA | CA |
| 2024-08-01 | 559-215-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SELMA | CA |
| 2024-08-01 | 559-814-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FOWLER | CA |
| 2024-08-01 | 559-814-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FOWLER | CA |
| 2024-08-01 | 559-814-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | FOWLER | CA |
| 2024-08-01 | 559-845-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | DINUBA | CA |
| 2024-07-29 | 559-961-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | COALINGA | CA |
| 2024-07-25 | 559-210-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SANJOAQUIN | CA |
| 2024-07-22 | 559-376-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | TERRABELLA | CA |
| 2024-07-22 | 559-527-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | TERRABELLA | CA |
| 2024-07-22 | 559-571-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | VISALIA | CA |
| 2024-07-16 | 559-655-2XXX | 2000–2999 | Assigned | TERRA NOVA TELECOM INC. | 145J | MENDOTA | 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.