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 |
|---|---|---|---|---|---|---|---|
| 2006-06-23 | 805-824-4XXX | 4000–4999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | OXNARD | CA |
| 2006-06-23 | 805-824-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | OXNARD | CA |
| 2006-06-23 | 805-824-6XXX | 6000–6999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | OXNARD | CA |
| 2006-06-19 | 805-202-7XXX | 7000–7999 | Assigned | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | ARROYOGRND | CA |
| 2006-06-16 | 805-406-2XXX | 2000–2999 | Assigned | T-MOBILE USA, INC. | 6529 | SANTAMARIA | CA |
| 2006-06-13 | 805-464-9XXX | 9000–9999 | Assigned | T-MOBILE USA, INC. | 6529 | ATASCADERO | CA |
| 2006-06-12 | 805-244-7XXX | 7000–7999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | CONEJO | CA |
| 2006-06-12 | 805-283-5XXX | 5000–5999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | POINT MUGU | CA |
| 2006-06-12 | 805-437-5XXX | 5000–5999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | CAMARILLO | CA |
| 2006-06-12 | 805-547-2XXX | 2000–2999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | SNLUSOBSPO | CA |
| 2006-06-12 | 805-921-4XXX | 4000–4999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | SANTAPAULA | CA |
| 2006-06-09 | 805-386-5XXX | 5000–5999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | SOMIS | CA |
| 2006-06-09 | 805-410-6XXX | 6000–6999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | NEWBURYPRK | CA |
| 2006-06-09 | 805-521-5XXX | 5000–5999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | PIRU | CA |
| 2006-06-09 | 805-553-3XXX | 3000–3999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | MOORPARK | CA |
| 2006-06-09 | 805-584-7XXX | 7000–7999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | SIMIVALLEY | CA |
| 2006-06-09 | 805-613-5XXX | 5000–5999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | OAKVIEW | CA |
| 2006-06-09 | 805-620-3XXX | 3000–3999 | Assigned | PAETEC ITEL, LLC | 829J | VNTRA EAST | CA |
| 2006-06-09 | 805-625-6XXX | 6000–6999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | FILLMORE | CA |
| 2006-06-09 | 805-633-7XXX | 7000–7999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | OJAI | CA |
| 2006-06-09 | 805-656-4XXX | 4000–4999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | SATICOY | CA |
| 2006-06-09 | 805-667-1XXX | 1000–1999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | VNTRA CNTL | CA |
| 2006-06-09 | 805-676-2XXX | 2000–2999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | VNTRA EAST | CA |
| 2006-06-09 | 805-827-6XXX | 6000–6999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | OXNARD | CA |
| 2006-06-09 | 805-856-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | VNTRA EAST | CA |
| 2006-06-09 | 805-973-4XXX | 4000–4999 | Assigned | UTILITY TELECOM GROUP, LLC - CA | 9262 | EL RIO | CA |
| 2006-06-08 | 805-827-4XXX | 4000–4999 | Assigned | T-MOBILE USA, INC. | 6529 | OXNARD | CA |
| 2006-06-07 | 805-621-2XXX | 2000–2999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SANTAMARIA | CA |
| 2006-06-07 | 805-621-3XXX | 3000–3999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SANTAMARIA | CA |
| 2006-06-07 | 805-621-4XXX | 4000–4999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | SANTAMARIA | CA |
| 2006-06-07 | 805-827-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | OXNARD | CA |
| 2006-05-30 | 805-665-8XXX | 8000–8999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | VNTRA EAST | CA |
| 2006-05-30 | 805-728-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | THOUSAOAKS | CA |
| 2006-05-26 | 805-651-0XXX | 0000–0999 | Assigned | METROPCS NETWORKS, LLC | 899D | VNTRA CNTL | CA |
| 2006-05-24 | 805-832-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | OXNARD | CA |
| 2006-05-24 | 805-832-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | OXNARD | CA |
| 2006-05-24 | 805-832-8XXX | 8000–8999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | OXNARD | CA |
| 2006-05-12 | 805-800-3XXX | 3000–3999 | Assigned | MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 7229 | LOMPOC | CA |
| 2006-05-09 | 805-286-3XXX | 3000–3999 | Assigned | U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS | 671J | PASOROBLES | CA |
| 2006-05-05 | 805-640-5XXX | 5000–5999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | OJAI | CA |
| 2006-05-05 | 805-827-0XXX | 0000–0999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | OXNARD | CA |
| 2006-05-05 | 805-827-1XXX | 1000–1999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | OXNARD | CA |
| 2006-05-05 | 805-827-2XXX | 2000–2999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | OXNARD | CA |
| 2006-05-05 | 805-827-3XXX | 3000–3999 | Assigned | NEW CINGULAR WIRELESS PCS, LLC | 6010 | OXNARD | CA |
| 2006-05-01 | 805-567-0XXX | 0000–0999 | Assigned | LEVEL 3 TELECOM OF CALIFORNIA, LP - CA | 7718 | GAVIOTA | CA |
| 2006-04-25 | 805-500-5XXX | 5000–5999 | Assigned | TWC IP ENABLED SERVICES, LLC | 793K | OAKVIEW | CA |
| 2006-04-19 | 805-256-9XXX | 9000–9999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | VNTRA EAST | CA |
| 2006-04-18 | 805-975-5XXX | 5000–5999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | PASOROBLES | CA |
| 2006-04-18 | 805-975-7XXX | 7000–7999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | PASOROBLES | CA |
| 2006-04-17 | 805-624-0XXX | 0000–0999 | Assigned | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA | 6006 | 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.