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 |
|---|---|---|---|---|---|---|---|
| 2009-01-26 | 530-675-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | CHALLENGE | CA |
| 2009-01-26 | 530-784-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | WEAVERVL | CA |
| 2009-01-26 | 530-830-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | AUBN NORTH | CA |
| 2009-01-26 | 530-868-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | BIGGS | CA |
| 2009-01-26 | 530-918-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | MT SHASTA | CA |
| 2009-01-26 | 530-968-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | ELK CREEK | CA |
| 2009-01-12 | 530-771-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | DAVIS | CA |
| 2008-12-16 | 530-205-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | GRVY MAIN | CA |
| 2008-12-16 | 530-217-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | AUBN MAIN | CA |
| 2008-12-16 | 530-282-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | OROVILLE | CA |
| 2008-12-16 | 530-330-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | WILLOWS | CA |
| 2008-12-16 | 530-362-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | NEVADACITY | CA |
| 2008-12-16 | 530-377-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | COTTONWOOD | CA |
| 2008-12-16 | 530-378-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | ANDERSON | CA |
| 2008-12-16 | 530-413-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | PARADISE | CA |
| 2008-12-16 | 530-539-4XXX | 4000–4999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SOUTHTAHOE | CA |
| 2008-12-16 | 530-563-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | TRUCKEE | CA |
| 2008-12-16 | 530-586-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | CORNING | CA |
| 2008-12-16 | 530-616-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | QUINCY | CA |
| 2008-12-16 | 530-683-5XXX | 5000–5999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SHINGLESPG | CA |
| 2008-12-16 | 530-710-0XXX | 0000–0999 | Assigned | ONVOY, LLC - CA | 649C | REDDING | CA |
| 2008-12-16 | 530-723-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | WOODLAND | CA |
| 2008-12-16 | 530-727-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | RED BLUFF | CA |
| 2008-12-16 | 530-746-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | DAVIS | CA |
| 2008-12-16 | 530-763-2XXX | 2000–2999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | MARYSVILLE | CA |
| 2008-12-16 | 530-763-3XXX | 3000–3999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | MARYSVILLE | CA |
| 2008-12-16 | 530-797-6XXX | 6000–6999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | GRIDLEY | CA |
| 2008-12-16 | 530-903-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | PLVL WEST | CA |
| 2008-12-16 | 530-931-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | SUSANVILLE | CA |
| 2008-12-16 | 530-988-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | ORLAND | CA |
| 2008-12-05 | 530-739-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | WEAVERVL | CA |
| 2008-12-04 | 530-313-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SHINGLESPG | CA |
| 2008-12-04 | 530-763-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | MARYSVILLE | CA |
| 2008-11-26 | 530-440-0XXX | 0000–0999 | Assigned | METROPCS, INC. | 5562 | REDDING | CA |
| 2008-11-26 | 530-440-3XXX | 3000–3999 | Assigned | METROPCS, INC. | 5562 | REDDING | CA |
| 2008-11-25 | 530-600-1XXX | 1000–1999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | SOUTHTAHOE | CA |
| 2008-11-13 | 530-282-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | OROVILLE | CA |
| 2008-10-30 | 530-303-3XXX | 3000–3999 | Assigned | COMCAST PHONE OF CALIFORNIA, LLC | 394L | PLVL WEST | CA |
| 2008-10-28 | 530-413-9XXX | 9000–9999 | Assigned | COMCAST PHONE OF CALIFORNIA, LLC | 394L | PARADISE | CA |
| 2008-10-24 | 530-231-7XXX | 7000–7999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | DAVIS | CA |
| 2008-10-24 | 530-282-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | OROVILLE | CA |
| 2008-10-21 | 530-276-8XXX | 8000–8999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | REDDING | CA |
| 2008-10-21 | 530-588-0XXX | 0000–0999 | Assigned | BANDWIDTH.COM CLEC, LLC - CA | 981E | CHICO | CA |
| 2008-10-20 | 530-636-4XXX | 4000–4999 | Assigned | COMCAST PHONE OF CALIFORNIA, LLC | 394L | CHICO | CA |
| 2008-10-15 | 530-763-4XXX | 4000–4999 | Assigned | COMCAST PHONE OF CALIFORNIA, LLC | 394L | MARYSVILLE | CA |
| 2008-10-15 | 530-763-5XXX | 5000–5999 | Assigned | COMCAST PHONE OF CALIFORNIA, LLC | 394L | MARYSVILLE | CA |
| 2008-09-30 | 530-564-4XXX | 4000–4999 | Assigned | COMCAST PHONE OF CALIFORNIA, LLC | 394L | DAVIS | CA |
| 2008-09-29 | 530-388-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | ALTA | CA |
| 2008-09-22 | 530-427-3XXX | 3000–3999 | Assigned | CSC VOICE, LLC | 612K | SODA SPG | CA |
| 2008-09-11 | 530-852-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | AUBN MAIN | 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.