NumberResearchRecent thousands-block assignments
31 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 |
|---|---|---|---|---|---|---|---|
| 2011-07-26 | 530-868-3XXX | 3000–3999 | Assigned | AT&T ENTERPRISES, LLC | 516C | BIGGS | CA |
| 2011-07-26 | 530-918-6XXX | 6000–6999 | Assigned | AT&T ENTERPRISES, LLC | 516C | MT SHASTA | CA |
| 2011-07-26 | 530-962-3XXX | 3000–3999 | Assigned | AT&T ENTERPRISES, LLC | 516C | SHASTALAKE | CA |
| 2011-07-26 | 530-988-3XXX | 3000–3999 | Assigned | AT&T ENTERPRISES, LLC | 516C | ORLAND | CA |
| 2011-07-26 | 530-993-5XXX | 5000–5999 | Assigned | AT&T ENTERPRISES, LLC | 516C | LOYALTON | CA |
| 2011-07-20 | 530-298-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | DAVIS | CA |
| 2011-07-19 | 530-429-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | DOWNIEVL | CA |
| 2011-07-14 | 530-777-1XXX | 1000–1999 | Assigned | METROPCS, INC. | 5562 | MARYSVILLE | CA |
| 2011-07-13 | 530-841-7XXX | 7000–7999 | Assigned | CAL-ORE COMMUNICATIONS, INC. - CA | 734E | YREKA | CA |
| 2011-07-06 | 530-312-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | WOODLAND | CA |
| 2011-07-06 | 530-750-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | DAVIS | CA |
| 2011-06-30 | 530-999-9XXX | 9000–9999 | Assigned | ONVOY, LLC - CA | 649C | REDDING | CA |
| 2011-06-29 | 530-212-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | WINTERS | CA |
| 2011-06-29 | 530-289-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | DOWNIEVL | CA |
| 2011-06-29 | 530-918-2XXX | 2000–2999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | MT SHASTA | CA |
| 2011-06-28 | 530-938-7XXX | 7000–7999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | WEED | CA |
| 2011-06-10 | 530-503-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | PLVL SOUTH | CA |
| 2011-06-08 | 530-276-0XXX | 0000–0999 | Assigned | AT&T ENTERPRISES, LLC | 516C | REDDING | CA |
| 2011-06-08 | 530-586-7XXX | 7000–7999 | Assigned | AT&T ENTERPRISES, LLC | 516C | CORNING | CA |
| 2011-06-08 | 530-643-8XXX | 8000–8999 | Assigned | AT&T ENTERPRISES, LLC | 516C | YREKA | CA |
| 2011-06-08 | 530-712-9XXX | 9000–9999 | Assigned | AT&T ENTERPRISES, LLC | 516C | OROVILLE | CA |
| 2011-06-08 | 530-727-6XXX | 6000–6999 | Assigned | AT&T ENTERPRISES, LLC | 516C | RED BLUFF | CA |
| 2011-06-08 | 530-776-3XXX | 3000–3999 | Assigned | AT&T ENTERPRISES, LLC | 516C | ANDERSON | CA |
| 2011-06-07 | 530-628-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | HAYFORK | CA |
| 2011-06-06 | 530-720-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | CHICO | CA |
| 2011-06-03 | 530-918-5XXX | 5000–5999 | Assigned | SNOWCREST TELEPHONE, INC -CA | 103G | MT SHASTA | CA |
| 2011-06-03 | 530-924-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | CHICO | CA |
| 2011-06-03 | 530-938-8XXX | 8000–8999 | Assigned | SNOWCREST TELEPHONE, INC -CA | 103G | WEED | CA |
| 2011-05-26 | 530-208-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SOUTHTAHOE | CA |
| 2011-05-26 | 530-213-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | NTAH BCWY | CA |
| 2011-05-26 | 530-278-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | GRVY SOUTH | CA |
| 2011-05-26 | 530-285-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | CAMPTONVL | CA |
| 2011-05-26 | 530-303-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | PLVL WEST | CA |
| 2011-05-26 | 530-324-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | WILLOW CRK | CA |
| 2011-05-26 | 530-349-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | COLFAX | CA |
| 2011-05-26 | 530-350-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SHINGLESPG | CA |
| 2011-05-26 | 530-454-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | MERIDIAN | CA |
| 2011-05-26 | 530-487-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | CHICO | CA |
| 2011-05-26 | 530-638-7XXX | 7000–7999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | REDDING | CA |
| 2011-05-26 | 530-641-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | WHEATLAND | CA |
| 2011-05-26 | 530-710-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | REDDING | CA |
| 2011-05-26 | 530-718-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | AUBN MAIN | CA |
| 2011-05-26 | 530-727-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | RED BLUFF | CA |
| 2011-05-26 | 530-738-1XXX | 1000–1999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | ROBBINS | CA |
| 2011-05-26 | 530-739-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | WEAVERVL | CA |
| 2011-05-26 | 530-777-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | MARYSVILLE | CA |
| 2011-05-26 | 530-830-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | AUBN NORTH | CA |
| 2011-05-26 | 530-867-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | WOODLAND | CA |
| 2011-05-26 | 530-871-9XXX | 9000–9999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | OROVILLE | CA |
| 2011-05-26 | 530-953-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | REDDING | 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.