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 |
|---|---|---|---|---|---|---|---|
| 2015-08-24 | 530-500-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | DUNSMUIR | CA |
| 2015-08-24 | 530-593-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | NORTH YUBA | CA |
| 2015-08-24 | 530-625-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | HOOPA | CA |
| 2015-08-24 | 530-760-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | DAVIS | CA |
| 2015-08-24 | 530-786-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | AUBN MAIN | CA |
| 2015-08-20 | 530-994-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SIERRAVL | CA |
| 2015-08-14 | 530-715-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | CHICO | CA |
| 2015-08-13 | 530-395-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | REDDING | CA |
| 2015-08-13 | 530-395-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | REDDING | CA |
| 2015-08-13 | 530-395-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | REDDING | CA |
| 2015-08-13 | 530-395-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | REDDING | CA |
| 2015-08-04 | 530-565-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | LIVE OAK | CA |
| 2015-07-31 | 530-395-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | REDDING | CA |
| 2015-07-31 | 530-556-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SHINGLESPG | CA |
| 2015-07-20 | 530-395-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | REDDING | CA |
| 2015-07-20 | 530-395-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | REDDING | CA |
| 2015-07-17 | 530-360-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | ANDERSON | CA |
| 2015-07-15 | 530-421-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | KNIGHTSLDG | CA |
| 2015-07-15 | 530-492-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | AUBN MAIN | CA |
| 2015-07-15 | 530-637-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | CLFX WEMR | CA |
| 2015-07-14 | 530-832-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | PORTOLA | CA |
| 2015-07-14 | 530-994-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SIERRAVL | CA |
| 2015-07-13 | 530-285-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | CAMPTONVL | CA |
| 2015-07-13 | 530-290-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | ALLEGHANY | CA |
| 2015-07-13 | 530-453-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | NICOLAUS | CA |
| 2015-07-13 | 530-481-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | PASKENTA | CA |
| 2015-07-13 | 530-500-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | DUNSMUIR | CA |
| 2015-07-13 | 530-517-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | BUTTE CITY | CA |
| 2015-07-13 | 530-593-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | NORTH YUBA | CA |
| 2015-07-13 | 530-618-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | HOOPA | CA |
| 2015-07-10 | 530-760-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | DAVIS | CA |
| 2015-07-06 | 530-360-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | ANDERSON | CA |
| 2015-07-06 | 530-377-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | COTTONWOOD | CA |
| 2015-07-06 | 530-641-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | WHEATLAND | CA |
| 2015-06-30 | 530-650-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | WOODLAND | CA |
| 2015-06-30 | 530-813-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MARYSVILLE | CA |
| 2015-06-30 | 530-854-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | OROVILLE | CA |
| 2015-06-29 | 530-426-6XXX | 6000–6999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | SODA SPG | CA |
| 2015-06-22 | 530-650-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | WOODLAND | CA |
| 2015-06-19 | 530-393-5XXX | 5000–5999 | Assigned | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | WILLIAMS | CA |
| 2015-06-19 | 530-437-3XXX | 3000–3999 | Assigned | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | GRIMES | CA |
| 2015-06-19 | 530-438-4XXX | 4000–4999 | Assigned | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | MAXWELL | CA |
| 2015-06-19 | 530-476-5XXX | 5000–5999 | Assigned | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | ARBUCKLE | CA |
| 2015-06-19 | 530-502-6XXX | 6000–6999 | Assigned | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | PRINCETON | CA |
| 2015-06-18 | 530-238-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SHASTALAKE | CA |
| 2015-06-18 | 530-813-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | MARYSVILLE | CA |
| 2015-06-18 | 530-854-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | OROVILLE | CA |
| 2015-06-11 | 530-854-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | OROVILLE | CA |
| 2015-06-10 | 530-691-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | REDDING | CA |
| 2015-06-09 | 530-955-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | NEVADACITY | 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.