NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

17 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 14
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
2008-01-28 805-287-2XXX 2000–2999Assigned FRONTIER CALIFORNIA INC. 2319 SANTAMARIA CA
2008-01-28 805-287-3XXX 3000–3999Assigned FRONTIER CALIFORNIA INC. 2319 SANTAMARIA CA
2008-01-28 805-287-4XXX 4000–4999Assigned FRONTIER CALIFORNIA INC. 2319 SANTAMARIA CA
2008-01-28 805-287-5XXX 5000–5999Assigned FRONTIER CALIFORNIA INC. 2319 SANTAMARIA CA
2008-01-28 805-287-6XXX 6000–6999Assigned FRONTIER CALIFORNIA INC. 2319 SANTAMARIA CA
2008-01-28 805-287-7XXX 7000–7999Assigned FRONTIER CALIFORNIA INC. 2319 SANTAMARIA CA
2008-01-21 805-367-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 THOUSAOAKS CA
2008-01-21 805-416-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SIMIVALLEY CA
2008-01-21 805-418-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 THOUSAOAKS CA
2008-01-11 805-266-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SANTAMARIA CA
2008-01-11 805-266-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SANTAMARIA CA
2008-01-11 805-266-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SANTAMARIA CA
2008-01-11 805-315-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 LOMPOC CA
2008-01-08 805-791-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SIMIVALLEY CA
2008-01-08 805-791-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SIMIVALLEY CA
2007-12-21 805-336-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 OXNARD CA
2007-12-21 805-602-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNLUSOBSPO CA
2007-12-21 805-602-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNLUSOBSPO CA
2007-12-21 805-667-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 VNTRA CNTL CA
2007-12-11 805-699-7XXX 7000–7999Assigned UTILITY TELECOM GROUP, LLC - CA 9262 SANBARBARA CA
2007-12-07 805-317-1XXX 1000–1999Assigned METROPCS NETWORKS, LLC 899D SANTAPAULA CA
2007-12-07 805-904-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 ARROYOGRND CA
2007-12-03 805-416-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SIMIVALLEY CA
2007-11-21 805-852-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 THOUSAOAKS CA
2007-11-20 805-253-0XXX 0000–0999Assigned TWC IP ENABLED SERVICES, LLC 793K OXNARD CA
2007-11-13 805-266-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SANTAMARIA CA
2007-11-13 805-280-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SANBARBARA CA
2007-11-13 805-400-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 PASOROBLES CA
2007-11-13 805-400-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 PASOROBLES CA
2007-11-09 805-263-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 OXNARD CA
2007-11-06 805-717-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 LOMPOC CA
2007-11-06 805-765-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 VNTRA EAST CA
2007-11-05 805-603-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 CAMARILLO CA
2007-11-05 805-603-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 CAMARILLO CA
2007-11-05 805-603-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 CAMARILLO CA
2007-10-31 805-845-7XXX 7000–7999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L SANBARBARA CA
2007-10-31 805-845-8XXX 8000–8999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L SANBARBARA CA
2007-10-23 805-975-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PASOROBLES CA
2007-10-18 805-602-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 SNLUSOBSPO CA
2007-10-18 805-617-8XXX 8000–8999Assigned METROPCS, INC. 5562 SANBARBARA CA
2007-10-18 805-617-9XXX 9000–9999Assigned METROPCS, INC. 5562 SANBARBARA CA
2007-10-12 805-250-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C SNLUSOBSPO CA
2007-10-10 805-990-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 MOORPARK CA
2007-10-01 805-613-8XXX 8000–8999Assigned CHARTER IP ENABLED SERVICES, LLC 792K OAKVIEW CA
2007-10-01 805-665-9XXX 9000–9999Assigned CHARTER IP ENABLED SERVICES, LLC 792K VNTRA EAST CA
2007-10-01 805-667-8XXX 8000–8999Assigned CHARTER IP ENABLED SERVICES, LLC 792K VNTRA CNTL CA
2007-09-27 805-248-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 OXNARD CA
2007-09-26 805-283-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 POINT MUGU CA
2007-09-26 805-617-7XXX 7000–7999Assigned LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 7718 SANBARBARA CA
2007-09-26 805-679-8XXX 8000–8999Assigned LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 7718 SANBARBARA 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.