NumberResearchRecent thousands-block assignments
31 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 530
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 |
|---|---|---|---|---|---|---|---|
| 2025-08-20 | 530-267-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | CHICO | CA |
| 2025-08-11 | 530-267-2XXX | 2000–2999 | Assigned | WAVENATION, LLC | 700J | CHICO | CA |
| 2025-08-06 | 530-402-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | WOODLAND | CA |
| 2025-08-06 | 530-978-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MARYSVILLE | CA |
| 2025-07-07 | 530-961-8XXX | 8000–8999 | Assigned | TERRA NOVA TELECOM INC. | 145J | CHICO | CA |
| 2025-06-30 | 530-996-3XXX | 3000–3999 | Assigned | T-MOBILE USA, INC. | 6529 | AUBN MAIN | CA |
| 2025-06-30 | 530-996-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | AUBN MAIN | CA |
| 2025-06-30 | 530-996-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | AUBN MAIN | CA |
| 2025-06-30 | 530-996-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | AUBN MAIN | CA |
| 2025-06-10 | 530-359-7XXX | 7000–7999 | Assigned | TERRA NOVA TELECOM INC. | 145J | FRENCHGLCH | CA |
| 2025-06-05 | 530-239-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MT SHASTA | CA |
| 2025-05-08 | 530-416-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SOUTHTAHOE | CA |
| 2025-04-25 | 530-996-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | AUBN MAIN | CA |
| 2025-04-25 | 530-996-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | AUBN MAIN | CA |
| 2025-04-25 | 530-996-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | AUBN MAIN | CA |
| 2025-04-22 | 530-789-2XXX | 2000–2999 | Assigned | ONVOY SPECTRUM, LLC | 624H | MARYSVILLE | CA |
| 2025-04-17 | 530-375-6XXX | 6000–6999 | Assigned | TERRA NOVA TELECOM INC. | 145J | WESTWOOD | CA |
| 2025-04-17 | 530-476-9XXX | 9000–9999 | Assigned | TERRA NOVA TELECOM INC. | 145J | ARBUCKLE | CA |
| 2025-04-16 | 530-234-4XXX | 4000–4999 | Assigned | TERRA NOVA TELECOM INC. | 145J | RAVENDALE | CA |
| 2025-04-16 | 530-253-4XXX | 4000–4999 | Assigned | TERRA NOVA TELECOM INC. | 145J | JANESVILLE | CA |
| 2025-04-16 | 530-337-1XXX | 1000–1999 | Assigned | TERRA NOVA TELECOM INC. | 145J | MONTGOYCRK | CA |
| 2025-04-16 | 530-549-6XXX | 6000–6999 | Assigned | TERRA NOVA TELECOM INC. | 145J | MILLVILLE | CA |
| 2025-04-16 | 530-595-4XXX | 4000–4999 | Assigned | TERRA NOVA TELECOM INC. | 145J | MINERAL | CA |
| 2025-04-16 | 530-983-1XXX | 1000–1999 | Assigned | ONVOY, LLC - CA | 649C | REDDING | CA |
| 2025-04-15 | 530-259-6XXX | 6000–6999 | Assigned | TERRA NOVA TELECOM INC. | 145J | CHESTER | CA |
| 2025-04-15 | 530-279-8XXX | 8000–8999 | Assigned | TERRA NOVA TELECOM INC. | 145J | CEDARVILLE | CA |
| 2025-04-15 | 530-284-3XXX | 3000–3999 | Assigned | TERRA NOVA TELECOM INC. | 145J | GREENVILLE | CA |
| 2025-04-15 | 530-299-4XXX | 4000–4999 | Assigned | TERRA NOVA TELECOM INC. | 145J | ADIN | CA |
| 2025-04-15 | 530-336-1XXX | 1000–1999 | Assigned | TERRA NOVA TELECOM INC. | 145J | FALLRVRMLS | CA |
| 2025-04-15 | 530-437-6XXX | 6000–6999 | Assigned | TERRA NOVA TELECOM INC. | 145J | GRIMES | CA |
| 2025-04-15 | 530-449-9XXX | 9000–9999 | Assigned | TERRA NOVA TELECOM INC. | 145J | OAK RUN | CA |
| 2025-04-15 | 530-458-9XXX | 9000–9999 | Assigned | TERRA NOVA TELECOM INC. | 145J | COLUSA | CA |
| 2025-04-15 | 530-495-9XXX | 9000–9999 | Assigned | TERRA NOVA TELECOM INC. | 145J | COLEVILLE | CA |
| 2025-04-15 | 530-640-4XXX | 4000–4999 | Assigned | TERRA NOVA TELECOM INC. | 145J | ALTURAS | CA |
| 2025-04-15 | 530-694-0XXX | 0000–0999 | Assigned | TERRA NOVA TELECOM INC. | 145J | ALPINE | CA |
| 2025-04-15 | 530-825-2XXX | 2000–2999 | Assigned | TERRA NOVA TELECOM INC. | 145J | EAGLE LAKE | CA |
| 2025-04-15 | 530-853-0XXX | 0000–0999 | Assigned | TERRA NOVA TELECOM INC. | 145J | MCCLOUD | CA |
| 2025-04-15 | 530-995-5XXX | 5000–5999 | Assigned | TERRA NOVA TELECOM INC. | 145J | QUINCY | CA |
| 2025-04-10 | 530-606-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | TRUCKEE | CA |
| 2025-04-09 | 530-640-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | ALTURAS | CA |
| 2025-04-08 | 530-298-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | DAVIS | CA |
| 2025-04-08 | 530-904-8XXX | 8000–8999 | Assigned | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 373F | GEORGETOWN | CA |
| 2025-03-28 | 530-995-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | QUINCY | CA |
| 2025-03-26 | 530-931-1XXX | 1000–1999 | Assigned | METROPCS, INC. | 5562 | SUSANVILLE | CA |
| 2025-03-26 | 530-995-9XXX | 9000–9999 | Assigned | METROPCS, INC. | 5562 | QUINCY | CA |
| 2025-03-21 | 530-239-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | MT SHASTA | CA |
| 2025-03-21 | 530-250-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | SUSANVILLE | CA |
| 2025-03-21 | 530-423-2XXX | 2000–2999 | Assigned | METROPCS, INC. | 5562 | WEAVERVL | CA |
| 2025-03-21 | 530-708-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | ALTURAS | CA |
| 2025-03-21 | 530-845-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | MARYSVILLE | 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.