NumberResearch Membership · Data 09/21/2026

Recent thousands-block assignments

14 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026

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
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Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2013-09-17 805-344-0XXX 0000–0999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F LOS ALAMOS CA
2013-09-11 805-574-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 ARROYOGRND CA
2013-08-29 805-770-5XXX 5000–5999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L SANBARBARA CA
2013-08-29 805-858-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNLUSOBSPO CA
2013-08-28 805-817-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C SNLUSOBSPO CA
2013-08-27 805-298-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C MOORPARK CA
2013-08-26 805-804-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 VNTRA CNTL CA
2013-08-14 805-350-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SANTA YNEZ CA
2013-08-08 805-538-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 ATASCADERO CA
2013-08-01 805-914-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 CAMARILLO CA
2013-07-25 805-225-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 MORRO BAY CA
2013-07-23 805-865-3XXX 3000–3999Assigned METROPCS, INC. 5562 LOMPOC CA
2013-07-22 805-394-6XXX 6000–6999Assigned TWC IP ENABLED SERVICES, LLC 793K OXNARD CA
2013-07-17 805-623-8XXX 8000–8999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L SANTAMARIA CA
2013-07-01 805-387-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SIMIVALLEY CA
2013-06-17 805-623-9XXX 9000–9999Assigned METROPCS, INC. 5562 SANTAMARIA CA
2013-06-13 805-556-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 PISMOBEACH CA
2013-06-13 805-601-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 THOUSAOAKS CA
2013-06-12 805-663-0XXX 0000–0999Assigned TWC IP ENABLED SERVICES, LLC 793K OXNARD CA
2013-06-07 805-250-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SNLUSOBSPO CA
2013-06-05 805-504-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 CAMARILLO CA
2013-06-04 805-979-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 SANBARBARA CA
2013-05-24 805-324-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SANBARBARA CA
2013-05-22 805-770-7XXX 7000–7999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L SANBARBARA CA
2013-05-15 805-332-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SANTAMARIA CA
2013-04-29 805-324-5XXX 5000–5999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J SANBARBARA CA
2013-04-29 805-628-9XXX 9000–9999Assigned TWC IP ENABLED SERVICES, LLC 793K VNTRA CNTL CA
2013-04-25 805-395-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E CAMBRIA CA
2013-04-25 805-666-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E VNTRA EAST CA
2013-04-11 805-548-2XXX 2000–2999Assigned NORCAST COMMUNICATIONS CORPORATION - CA 9807 SNLUSOBSPO CA
2013-04-09 805-463-0XXX 0000–0999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F PARKFIELD CA
2013-04-09 805-463-5XXX 5000–5999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F PARKFIELD CA
2013-03-28 805-433-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SIMIVALLEY CA
2013-03-20 805-200-4XXX 4000–4999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F OXNARD CA
2013-03-20 805-271-6XXX 6000–6999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F POINT MUGU CA
2013-03-20 805-272-4XXX 4000–4999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F OJAI CA
2013-03-20 805-283-3XXX 3000–3999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F POINT MUGU CA
2013-03-20 805-296-5XXX 5000–5999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F PASOROBLES CA
2013-03-20 805-297-8XXX 8000–8999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F SIMIVALLEY CA
2013-03-20 805-369-0XXX 0000–0999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F PASOROBLES CA
2013-03-20 805-433-6XXX 6000–6999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F SIMIVALLEY CA
2013-03-20 805-633-5XXX 5000–5999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F OJAI CA
2013-03-19 805-246-8XXX 8000–8999Assigned TWC IP ENABLED SERVICES, LLC 793K POINT MUGU CA
2013-03-19 805-301-0XXX 0000–0999Assigned TWC IP ENABLED SERVICES, LLC 793K SOMIS CA
2013-03-19 805-380-9XXX 9000–9999Assigned CHARTER IP ENABLED SERVICES, LLC 792K CONEJO CA
2013-03-19 805-394-0XXX 0000–0999Assigned TWC IP ENABLED SERVICES, LLC 793K OXNARD CA
2013-03-19 805-419-6XXX 6000–6999Assigned TWC IP ENABLED SERVICES, LLC 793K CAMARILLO CA
2013-03-19 805-420-0XXX 0000–0999Assigned TWC IP ENABLED SERVICES, LLC 793K SANTAPAULA CA
2013-03-19 805-716-0XXX 0000–0999Assigned TWC IP ENABLED SERVICES, LLC 793K NEWBURYPRK CA
2013-03-19 805-852-5XXX 5000–5999Assigned TWC IP ENABLED SERVICES, LLC 793K THOUSAOAKS CA

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.