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 |
|---|---|---|---|---|---|---|---|
| 2008-03-03 | 530-746-0XXX | 0000–0999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | DAVIS | CA |
| 2008-02-29 | 530-605-1XXX | 1000–1999 | Assigned | CHARTER IP ENABLED SERVICES, LLC | 792K | REDDING | CA |
| 2008-02-15 | 530-264-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | NEVADACITY | CA |
| 2008-02-15 | 530-366-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | RED BLUFF | CA |
| 2008-02-15 | 530-617-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | LIVE OAK | CA |
| 2008-02-15 | 530-723-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | WOODLAND | CA |
| 2008-02-14 | 530-238-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SHASTALAKE | CA |
| 2008-02-14 | 530-282-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | OROVILLE | CA |
| 2008-02-14 | 530-327-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PARADISE | CA |
| 2008-02-08 | 530-809-3XXX | 3000–3999 | Assigned | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | CHICO | CA |
| 2008-02-07 | 530-440-1XXX | 1000–1999 | Assigned | METROPCS, INC. | 5562 | REDDING | CA |
| 2008-02-07 | 530-440-2XXX | 2000–2999 | Assigned | METROPCS, INC. | 5562 | REDDING | CA |
| 2008-02-07 | 530-501-6XXX | 6000–6999 | Assigned | METROPCS, INC. | 5562 | WILLIAMS | CA |
| 2008-02-07 | 530-554-5XXX | 5000–5999 | Assigned | METROPCS, INC. | 5562 | DAVIS | CA |
| 2008-02-06 | 530-307-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SOUTHTAHOE | CA |
| 2008-02-01 | 530-408-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | WEED | CA |
| 2008-02-01 | 530-918-3XXX | 3000–3999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | MT SHASTA | CA |
| 2008-01-29 | 530-513-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | CHICO | CA |
| 2008-01-23 | 530-331-9XXX | 9000–9999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | YREKA | CA |
| 2008-01-23 | 530-615-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | GRVY MAIN | CA |
| 2008-01-22 | 530-788-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | MARYSVILLE | CA |
| 2008-01-18 | 530-616-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | QUINCY | CA |
| 2008-01-16 | 530-615-2XXX | 2000–2999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7145 | GRVY MAIN | CA |
| 2008-01-15 | 530-863-4XXX | 4000–4999 | Assigned | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | AUBN MAIN | CA |
| 2008-01-14 | 530-746-7XXX | 7000–7999 | Assigned | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | DAVIS | CA |
| 2008-01-08 | 530-739-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | WEAVERVL | CA |
| 2008-01-04 | 530-605-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | REDDING | CA |
| 2008-01-04 | 530-605-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | REDDING | CA |
| 2008-01-04 | 530-645-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | MARYSVILLE | CA |
| 2008-01-02 | 530-615-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | GRVY MAIN | CA |
| 2007-12-28 | 530-302-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | DAVIS | CA |
| 2007-12-28 | 530-392-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | AUBN MAIN | CA |
| 2007-12-28 | 530-405-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | WOODLAND | CA |
| 2007-12-21 | 530-566-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | CHICO | CA |
| 2007-12-04 | 530-330-9XXX | 9000–9999 | Assigned | METROPCS, INC. | 5562 | WILLOWS | CA |
| 2007-11-29 | 530-776-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | ANDERSON | CA |
| 2007-11-12 | 530-863-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | AUBN MAIN | CA |
| 2007-11-08 | 530-440-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | REDDING | CA |
| 2007-11-06 | 530-333-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | GEORGETOWN | CA |
| 2007-11-06 | 530-933-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | MARYSVILLE | CA |
| 2007-10-22 | 530-312-3XXX | 3000–3999 | Assigned | METROPCS, INC. | 5562 | WOODLAND | CA |
| 2007-09-26 | 530-723-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | WOODLAND | CA |
| 2007-09-25 | 530-263-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | GRVY MAIN | CA |
| 2007-09-24 | 530-302-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | DAVIS | CA |
| 2007-09-20 | 530-923-3XXX | 3000–3999 | Assigned | METROPCS, INC. | 5562 | MARYSVILLE | CA |
| 2007-09-17 | 530-313-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SHINGLESPG | CA |
| 2007-09-17 | 530-723-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | WOODLAND | CA |
| 2007-09-11 | 530-282-7XXX | 7000–7999 | Assigned | METROPCS, INC. | 5562 | OROVILLE | CA |
| 2007-09-11 | 530-282-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | OROVILLE | CA |
| 2007-09-11 | 530-339-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | 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.