NumberResearchRecent thousands-block assignments
24 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 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 |
|---|---|---|---|---|---|---|---|
| 2016-01-11 | 530-441-2XXX | 2000–2999 | Assigned | ONVOY, LLC - CA | 649C | MARYSVILLE | CA |
| 2016-01-07 | 530-269-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | AUBN NORTH | CA |
| 2016-01-05 | 530-744-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7145 | ANDERSON | CA |
| 2015-12-21 | 530-537-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | AUBN MAIN | CA |
| 2015-12-02 | 530-782-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | REDDING | CA |
| 2015-12-02 | 530-782-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | REDDING | CA |
| 2015-12-01 | 530-648-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | GRVY MAIN | CA |
| 2015-12-01 | 530-761-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | DAVIS | CA |
| 2015-11-24 | 530-696-6XXX | 6000–6999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7145 | MERIDIAN | CA |
| 2015-11-12 | 530-764-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | OROVILLE | CA |
| 2015-11-12 | 530-764-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | OROVILLE | CA |
| 2015-11-10 | 530-310-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SUSANVILLE | CA |
| 2015-11-10 | 530-565-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | LIVE OAK | CA |
| 2015-11-10 | 530-631-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | WOODLAND | CA |
| 2015-11-10 | 530-786-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | AUBN MAIN | CA |
| 2015-11-02 | 530-782-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | REDDING | CA |
| 2015-10-30 | 530-955-2XXX | 2000–2999 | Assigned | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | NEVADACITY | CA |
| 2015-10-29 | 530-395-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | REDDING | CA |
| 2015-10-29 | 530-717-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | CHICO | CA |
| 2015-10-29 | 530-762-3XXX | 3000–3999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | PARADISE | CA |
| 2015-10-22 | 530-395-8XXX | 8000–8999 | Assigned | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | REDDING | CA |
| 2015-10-19 | 530-346-5XXX | 5000–5999 | Assigned | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | COLFAX | CA |
| 2015-10-15 | 530-744-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | ANDERSON | CA |
| 2015-10-09 | 530-254-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | JANESVILLE | CA |
| 2015-10-09 | 530-363-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | PLVL WEST | CA |
| 2015-10-09 | 530-531-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | BIGGS | CA |
| 2015-10-08 | 530-536-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | TRUCKEE | CA |
| 2015-10-06 | 530-565-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | LIVE OAK | CA |
| 2015-10-06 | 530-955-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | NEVADACITY | CA |
| 2015-10-05 | 530-631-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | WOODLAND | CA |
| 2015-10-05 | 530-764-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | OROVILLE | CA |
| 2015-10-01 | 530-441-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MARYSVILLE | CA |
| 2015-09-29 | 530-760-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | DAVIS | CA |
| 2015-09-24 | 530-715-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | CHICO | CA |
| 2015-09-24 | 530-746-5XXX | 5000–5999 | Assigned | COMCAST PHONE OF CALIFORNIA, LLC | 394L | DAVIS | CA |
| 2015-09-21 | 530-327-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PARADISE | CA |
| 2015-09-16 | 530-395-7XXX | 7000–7999 | Assigned | SNOWCREST TELEPHONE, INC -CA | 103G | REDDING | CA |
| 2015-09-11 | 530-441-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MARYSVILLE | CA |
| 2015-09-11 | 530-441-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MARYSVILLE | CA |
| 2015-09-09 | 530-786-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | AUBN MAIN | CA |
| 2015-09-09 | 530-786-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | AUBN MAIN | CA |
| 2015-09-08 | 530-636-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | CHICO | CA |
| 2015-09-08 | 530-744-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | ANDERSON | CA |
| 2015-09-08 | 530-744-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | ANDERSON | CA |
| 2015-09-03 | 530-360-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | ANDERSON | CA |
| 2015-09-03 | 530-360-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | ANDERSON | CA |
| 2015-09-03 | 530-567-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | RED BLUFF | CA |
| 2015-08-28 | 530-498-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | CLFX WEMR | CA |
| 2015-08-24 | 530-447-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | ALLEGHANY | CA |
| 2015-08-24 | 530-481-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | PASKENTA | 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.