NumberResearchRecent thousands-block assignments
31 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026
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 |
|---|---|---|---|---|---|---|---|
| 2005-02-23 | 530-774-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | CHICO | CA |
| 2005-02-08 | 530-575-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | GRVY MAIN | CA |
| 2005-02-08 | 530-575-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | GRVY MAIN | CA |
| 2005-01-21 | 530-315-6XXX | 6000–6999 | Assigned | METROPCS, INC. | 5562 | MARYSVILLE | CA |
| 2005-01-21 | 530-315-7XXX | 7000–7999 | Assigned | METROPCS, INC. | 5562 | MARYSVILLE | CA |
| 2005-01-21 | 530-354-7XXX | 7000–7999 | Assigned | METROPCS, INC. | 5562 | CHICO | CA |
| 2005-01-21 | 530-354-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | CHICO | CA |
| 2005-01-21 | 530-354-9XXX | 9000–9999 | Assigned | METROPCS, INC. | 5562 | CHICO | CA |
| 2005-01-19 | 530-391-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PLVL WEST | CA |
| 2005-01-19 | 530-391-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PLVL WEST | CA |
| 2005-01-19 | 530-391-7XXX | 7000–7999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PLVL WEST | CA |
| 2005-01-13 | 530-313-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SHINGLESPG | CA |
| 2005-01-13 | 530-313-6XXX | 6000–6999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SHINGLESPG | CA |
| 2005-01-13 | 530-313-7XXX | 7000–7999 | Assigned | ONVOY, LLC - CA | 649C | SHINGLESPG | CA |
| 2005-01-13 | 530-403-8XXX | 8000–8999 | Assigned | METROPCS, INC. | 5562 | OROVILLE | CA |
| 2005-01-13 | 530-419-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | WOODLAND | CA |
| 2005-01-07 | 530-249-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SUSANVILLE | CA |
| 2005-01-07 | 530-351-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | REDDING | CA |
| 2005-01-07 | 530-410-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | REDDING | CA |
| 2005-01-07 | 530-419-1XXX | 1000–1999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | WOODLAND | CA |
| 2005-01-04 | 530-383-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | WOODLAND | CA |
| 2005-01-04 | 530-415-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | MARYSVILLE | CA |
| 2004-12-29 | 530-354-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | CHICO | CA |
| 2004-12-29 | 530-354-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | CHICO | CA |
| 2004-12-28 | 530-646-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | REDDING | CA |
| 2004-12-13 | 530-554-9XXX | 9000–9999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | DAVIS | CA |
| 2004-12-07 | 530-870-3XXX | 3000–3999 | Assigned | METROPCS, INC. | 5562 | MARYSVILLE | CA |
| 2004-11-22 | 530-418-5XXX | 5000–5999 | Assigned | ONVOY, LLC - CA | 649C | NORTH YUBA | CA |
| 2004-11-22 | 530-665-2XXX | 2000–2999 | Assigned | PEERLESS NETWORK OF CALIFORNIA, LLC - CA | 373F | WOODLAND | CA |
| 2004-11-19 | 530-725-1XXX | 1000–1999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SOUTHTAHOE | CA |
| 2004-11-09 | 530-414-1XXX | 1000–1999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | TRUCKEE | CA |
| 2004-10-12 | 530-867-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | WOODLAND | CA |
| 2004-09-23 | 530-953-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | REDDING | CA |
| 2004-09-22 | 530-417-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | PLVL WEST | CA |
| 2004-09-13 | 530-554-0XXX | 0000–0999 | Assigned | METROPCS, INC. | 5562 | DAVIS | CA |
| 2004-09-07 | 530-531-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | BIGGS | CA |
| 2004-09-07 | 530-586-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | CORNING | CA |
| 2004-08-23 | 530-200-9XXX | 9000–9999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | LOSMOLINOS | CA |
| 2004-08-19 | 530-852-4XXX | 4000–4999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | AUBN MAIN | CA |
| 2004-08-13 | 530-205-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | GRVY MAIN | CA |
| 2004-08-13 | 530-205-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | GRVY MAIN | CA |
| 2004-08-11 | 530-403-7XXX | 7000–7999 | Assigned | METROPCS, INC. | 5562 | OROVILLE | CA |
| 2004-07-21 | 530-401-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | AUBN MAIN | CA |
| 2004-07-21 | 530-401-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | AUBN MAIN | CA |
| 2004-06-29 | 530-237-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | MARYSVILLE | CA |
| 2004-06-23 | 530-314-3XXX | 3000–3999 | Assigned | METROPCS, INC. | 5562 | SOUTHTAHOE | CA |
| 2004-05-28 | 530-216-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | MARYSVILLE | CA |
| 2004-05-12 | 530-237-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | MARYSVILLE | CA |
| 2004-05-11 | 530-354-2XXX | 2000–2999 | Assigned | METROPCS, INC. | 5562 | CHICO | CA |
| 2004-05-11 | 530-354-3XXX | 3000–3999 | Assigned | METROPCS, INC. | 5562 | CHICO | CA |
Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.