NumberResearchRecent thousands-block assignments
17 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 805
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 |
|---|---|---|---|---|---|---|---|
| 2003-08-06 | 805-464-1XXX | 1000–1999 | Assigned | T-MOBILE USA, INC. | 6529 | ATASCADERO | CA |
| 2003-08-06 | 805-602-0XXX | 0000–0999 | Assigned | METROPCS, INC. | 5562 | SNLUSOBSPO | CA |
| 2003-08-06 | 805-815-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | OXNARD | CA |
| 2003-08-06 | 805-815-6XXX | 6000–6999 | Assigned | T-MOBILE USA, INC. | 6529 | OXNARD | CA |
| 2003-08-06 | 805-815-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | OXNARD | CA |
| 2003-08-06 | 805-815-8XXX | 8000–8999 | Assigned | T-MOBILE USA, INC. | 6529 | OXNARD | CA |
| 2003-08-06 | 805-947-8XXX | 8000–8999 | Assigned | METROPCS NETWORKS, LLC | 899D | VNTRA CNTL | CA |
| 2003-08-06 | 805-947-9XXX | 9000–9999 | Assigned | METROPCS NETWORKS, LLC | 899D | VNTRA CNTL | CA |
| 2003-08-05 | 805-804-5XXX | 5000–5999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | VNTRA CNTL | CA |
| 2003-08-05 | 805-918-4XXX | 4000–4999 | Assigned | LEVEL 3 COMMUNICATIONS, LLC - CA | 8826 | SATICOY | CA |
| 2003-07-30 | 805-904-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | ARROYOGRND | CA |
| 2003-07-17 | 805-979-9XXX | 9000–9999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | SANBARBARA | CA |
| 2003-07-15 | 805-244-9XXX | 9000–9999 | Assigned | PAETEC ITEL, LLC | 829J | CONEJO | CA |
| 2003-07-14 | 805-260-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SANTAMARIA | CA |
| 2003-07-14 | 805-260-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SANTAMARIA | CA |
| 2003-07-14 | 805-260-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SANTAMARIA | CA |
| 2003-07-14 | 805-260-6XXX | 6000–6999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SANTAMARIA | CA |
| 2003-07-01 | 805-779-7XXX | 7000–7999 | Assigned | NORCAST COMMUNICATIONS CORPORATION - CA | 9807 | PISMOBEACH | CA |
| 2003-07-01 | 805-822-7XXX | 7000–7999 | Assigned | METROPCS NETWORKS, LLC | 899D | OXNARD | CA |
| 2003-07-01 | 805-930-3XXX | 3000–3999 | Assigned | NORCAST COMMUNICATIONS CORPORATION - CA | 9807 | NIPOMO | CA |
| 2003-06-06 | 805-392-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | SANTAPAULA | CA |
| 2003-05-07 | 805-651-4XXX | 4000–4999 | Assigned | METROPCS NETWORKS, LLC | 899D | VNTRA CNTL | CA |
| 2003-05-07 | 805-651-5XXX | 5000–5999 | Assigned | METROPCS NETWORKS, LLC | 899D | VNTRA CNTL | CA |
| 2003-05-07 | 805-651-6XXX | 6000–6999 | Assigned | METROPCS NETWORKS, LLC | 899D | VNTRA CNTL | CA |
| 2003-05-07 | 805-651-7XXX | 7000–7999 | Assigned | METROPCS NETWORKS, LLC | 899D | VNTRA CNTL | CA |
| 2003-04-18 | 805-548-8XXX | 8000–8999 | Assigned | NORCAST COMMUNICATIONS CORPORATION - CA | 9807 | SNLUSOBSPO | CA |
| 2003-04-15 | 805-246-6XXX | 6000–6999 | Assigned | PAETEC ITEL, LLC | 829J | POINT MUGU | CA |
| 2003-04-15 | 805-464-4XXX | 4000–4999 | Assigned | NORCAST COMMUNICATIONS CORPORATION - CA | 9807 | ATASCADERO | CA |
| 2003-04-15 | 805-574-1XXX | 1000–1999 | Assigned | NORCAST COMMUNICATIONS CORPORATION - CA | 9807 | ARROYOGRND | CA |
| 2003-04-15 | 805-771-5XXX | 5000–5999 | Assigned | NORCAST COMMUNICATIONS CORPORATION - CA | 9807 | MORRO BAY | CA |
| 2003-04-14 | 805-200-5XXX | 5000–5999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | OXNARD | CA |
| 2003-04-14 | 805-222-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | MOORPARK | CA |
| 2003-04-14 | 805-233-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | CAMARILLO | CA |
| 2003-04-14 | 805-256-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | VNTRA EAST | CA |
| 2003-04-14 | 805-262-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | NEWBURYPRK | CA |
| 2003-04-14 | 805-288-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | EL RIO | CA |
| 2003-04-14 | 805-367-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | THOUSAOAKS | CA |
| 2003-04-14 | 805-626-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | VNTRA CNTL | CA |
| 2003-04-14 | 805-633-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | OJAI | CA |
| 2003-04-07 | 805-226-5XXX | 5000–5999 | Assigned | NORCAST COMMUNICATIONS CORPORATION - CA | 9807 | PASOROBLES | CA |
| 2003-04-07 | 805-297-5XXX | 5000–5999 | Assigned | METROPCS NETWORKS, LLC | 899D | SIMIVALLEY | CA |
| 2003-04-07 | 805-297-6XXX | 6000–6999 | Assigned | METROPCS NETWORKS, LLC | 899D | SIMIVALLEY | CA |
| 2003-04-07 | 805-297-7XXX | 7000–7999 | Assigned | T-MOBILE USA, INC. | 6529 | SIMIVALLEY | CA |
| 2003-04-07 | 805-297-9XXX | 9000–9999 | Assigned | METROPCS NETWORKS, LLC | 899D | SIMIVALLEY | CA |
| 2003-04-04 | 805-409-5XXX | 5000–5999 | Assigned | T-MOBILE USA, INC. | 6529 | THOUSAOAKS | CA |
| 2003-03-26 | 805-204-3XXX | 3000–3999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | OXNARD | CA |
| 2003-03-26 | 805-214-5XXX | 5000–5999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | NEWBURYPRK | CA |
| 2003-03-26 | 805-277-5XXX | 5000–5999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | THOUSAOAKS | CA |
| 2003-03-26 | 805-288-5XXX | 5000–5999 | Assigned | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | EL RIO | CA |
| 2003-03-26 | 805-416-5XXX | 5000–5999 | Assigned | TELEPORT COMMUNICATIONS AMERICA, LLC - CA | 7139 | SIMIVALLEY | 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.