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
2005-06-23 805-356-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 GUADALUPE CA
2005-06-23 805-395-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 CAMBRIA CA
2005-06-23 805-468-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 ATASCADERO CA
2005-06-23 805-472-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 BRADLEY CA
2005-06-23 805-567-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 GAVIOTA CA
2005-06-23 805-725-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 CARRISA PL CA
2005-06-23 805-804-0XXX 0000–0999Assigned METROPCS NETWORKS, LLC 899D VNTRA CNTL CA
2005-06-23 805-995-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 CAYUCOS CA
2005-06-16 805-754-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 OXNARD CA
2005-06-09 805-765-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K VNTRA EAST CA
2005-06-08 805-254-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E MORRO BAY CA
2005-06-08 805-926-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E CAMBRIA CA
2005-06-06 805-284-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 SANBARBARA CA
2005-06-03 805-762-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SNLUSOBSPO CA
2005-05-31 805-754-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 OXNARD CA
2005-05-31 805-754-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 OXNARD CA
2005-05-27 805-288-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C EL RIO CA
2005-05-27 805-392-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C SANTAPAULA CA
2005-05-26 805-228-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 OXNARD CA
2005-05-26 805-746-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 VNTRA CNTL CA
2005-05-23 805-754-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 OXNARD CA
2005-05-23 805-754-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 OXNARD CA
2005-05-23 805-754-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 OXNARD CA
2005-05-23 805-754-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 OXNARD CA
2005-05-22 805-728-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 THOUSAOAKS CA
2005-05-22 805-728-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 THOUSAOAKS CA
2005-05-22 805-728-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 THOUSAOAKS CA
2005-05-20 805-768-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 NEWBURYPRK CA
2005-05-20 805-768-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 NEWBURYPRK CA
2005-05-20 805-768-9XXX 9000–9999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 NEWBURYPRK CA
2005-05-12 805-322-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C CAMARILLO CA
2005-05-11 805-305-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNLUSOBSPO CA
2005-05-11 805-305-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNLUSOBSPO CA
2005-05-11 805-354-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SANTAMARIA CA
2005-05-11 805-354-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SANTAMARIA CA
2005-05-05 805-600-6XXX 6000–6999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J MORRO BAY CA
2005-05-05 805-746-8XXX 8000–8999Assigned METROPCS NETWORKS, LLC 899D VNTRA CNTL CA
2005-05-02 805-304-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 SIMIVALLEY CA
2005-04-22 805-512-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 OXNARD CA
2005-04-21 805-509-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 OXNARD CA
2005-04-21 805-509-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 OXNARD CA
2005-04-21 805-512-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 OXNARD CA
2005-04-20 805-204-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 OXNARD CA
2005-04-15 805-585-9XXX 9000–9999Assigned METROPCS NETWORKS, LLC 899D VNTRA CNTL CA
2005-04-11 805-433-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SIMIVALLEY CA
2005-04-11 805-433-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SIMIVALLEY CA
2005-04-08 805-591-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 PASOROBLES CA
2005-04-08 805-591-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 PASOROBLES CA
2005-04-08 805-752-1XXX 1000–1999Assigned AT&T ENTERPRISES, LLC 516C SNLUSOBSPO CA
2005-04-01 805-256-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 VNTRA EAST 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.