NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

14 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

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
ONVOY, LLC - CA 11
TELNYX LLC 1
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 1
BANDWIDTH.COM CLEC, LLC - CA 1
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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2012-04-23 805-366-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E OXNARD CA
2012-04-20 805-366-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 OXNARD CA
2012-04-20 805-366-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 OXNARD CA
2012-04-20 805-391-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E ATASCADERO CA
2012-04-16 805-251-0XXX 0000–0999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F SIMIVALLEY CA
2012-04-16 805-251-1XXX 1000–1999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F SIMIVALLEY CA
2012-04-16 805-251-5XXX 5000–5999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F SIMIVALLEY CA
2012-04-16 805-327-0XXX 0000–0999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F SIMIVALLEY CA
2012-04-16 805-327-1XXX 1000–1999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F SIMIVALLEY CA
2012-04-16 805-327-2XXX 2000–2999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F SIMIVALLEY CA
2012-04-16 805-327-3XXX 3000–3999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F SIMIVALLEY CA
2012-04-16 805-327-4XXX 4000–4999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F SIMIVALLEY CA
2012-04-16 805-327-5XXX 5000–5999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F SIMIVALLEY CA
2012-04-16 805-327-6XXX 6000–6999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F SIMIVALLEY CA
2012-04-16 805-327-7XXX 7000–7999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F SIMIVALLEY CA
2012-04-16 805-537-0XXX 0000–0999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F SIMIVALLEY CA
2012-04-16 805-537-2XXX 2000–2999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F SIMIVALLEY CA
2012-04-16 805-537-3XXX 3000–3999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F SIMIVALLEY CA
2012-04-16 805-537-4XXX 4000–4999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F SIMIVALLEY CA
2012-04-09 805-317-5XXX 5000–5999Assigned METROPCS NETWORKS, LLC 899D SANTAPAULA CA
2012-04-06 805-328-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SIMIVALLEY CA
2012-04-06 805-914-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 CAMARILLO CA
2012-04-06 805-990-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MOORPARK CA
2012-04-03 805-366-0XXX 0000–0999Assigned TWC IP ENABLED SERVICES, LLC 793K OXNARD CA
2012-04-03 805-590-6XXX 6000–6999Assigned TWC IP ENABLED SERVICES, LLC 793K CONEJO CA
2012-03-28 805-601-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 THOUSAOAKS CA
2012-03-28 805-910-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 CAMARILLO CA
2012-03-27 805-601-5XXX 5000–5999Assigned TWC IP ENABLED SERVICES, LLC 793K THOUSAOAKS CA
2012-03-21 805-232-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E VNTRA CNTL CA
2012-03-21 805-232-6XXX 6000–6999Assigned METROPCS NETWORKS, LLC 899D VNTRA CNTL CA
2012-03-21 805-232-8XXX 8000–8999Assigned METROPCS NETWORKS, LLC 899D VNTRA CNTL CA
2012-03-21 805-250-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SNLUSOBSPO CA
2012-03-21 805-332-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SANTAMARIA CA
2012-03-21 805-361-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 SANTAMARIA CA
2012-03-21 805-369-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 PASOROBLES CA
2012-03-21 805-666-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E VNTRA EAST CA
2012-03-13 805-601-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 THOUSAOAKS CA
2012-02-29 805-500-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C OAKVIEW CA
2012-02-29 805-600-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C MORRO BAY CA
2012-02-29 805-695-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SANBARBARA CA
2012-02-28 805-919-0XXX 0000–0999Assigned TWC IP ENABLED SERVICES, LLC 793K EL RIO CA
2012-02-22 805-620-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 VNTRA EAST CA
2012-02-15 805-706-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SNLUSOBSPO CA
2012-02-14 805-318-4XXX 4000–4999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J CARPINTRIA CA
2012-02-07 805-210-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C SIMIVALLEY CA
2012-02-01 805-842-1XXX 1000–1999Assigned TWC IP ENABLED SERVICES, LLC 793K SIMIVALLEY CA
2012-02-01 805-842-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SIMIVALLEY CA
2012-01-20 805-978-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 MOORPARK CA
2012-01-18 805-855-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C PIRU CA
2012-01-12 805-366-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 OXNARD 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.