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
2015-01-27 805-852-8XXX 8000–8999Assigned TWC IP ENABLED SERVICES, LLC 793K THOUSAOAKS CA
2015-01-26 805-335-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SANBARBARA CA
2015-01-26 805-774-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 FILLMORE CA
2015-01-14 805-631-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SANTAMARIA CA
2015-01-14 805-631-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SANTAMARIA CA
2015-01-08 805-668-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ARROYOGRND CA
2015-01-06 805-793-2XXX 2000–2999Assigned METROPCS NETWORKS, LLC 899D OXNARD CA
2015-01-05 805-942-0XXX 0000–0999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PASOROBLES CA
2015-01-05 805-942-1XXX 1000–1999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PASOROBLES CA
2015-01-05 805-942-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PASOROBLES CA
2015-01-05 805-942-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PASOROBLES CA
2015-01-05 805-942-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PASOROBLES CA
2015-01-05 805-942-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PASOROBLES CA
2015-01-05 805-942-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PASOROBLES CA
2015-01-05 805-942-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PASOROBLES CA
2015-01-05 805-942-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PASOROBLES CA
2015-01-05 805-942-9XXX 9000–9999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PASOROBLES CA
2015-01-05 805-943-0XXX 0000–0999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PASOROBLES CA
2015-01-05 805-943-1XXX 1000–1999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PASOROBLES CA
2015-01-05 805-943-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PASOROBLES CA
2015-01-05 805-943-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PASOROBLES CA
2015-01-05 805-943-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PASOROBLES CA
2015-01-05 805-943-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PASOROBLES CA
2015-01-05 805-943-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PASOROBLES CA
2015-01-05 805-943-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PASOROBLES CA
2015-01-05 805-943-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PASOROBLES CA
2015-01-05 805-943-9XXX 9000–9999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PASOROBLES CA
2014-12-19 805-536-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PASOROBLES CA
2014-12-18 805-793-8XXX 8000–8999Assigned METROPCS NETWORKS, LLC 899D OXNARD CA
2014-12-18 805-793-9XXX 9000–9999Assigned METROPCS NETWORKS, LLC 899D OXNARD CA
2014-12-09 805-917-9XXX 9000–9999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F THOUSAOAKS CA
2014-12-08 805-793-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C OXNARD CA
2014-12-08 805-793-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C OXNARD CA
2014-12-05 805-280-3XXX 3000–3999Assigned METROPCS, INC. 5562 SANBARBARA CA
2014-12-05 805-776-4XXX 4000–4999Assigned LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 7718 MORRO BAY CA
2014-12-03 805-387-9XXX 9000–9999Assigned ONVOY, LLC - CA 649C SIMIVALLEY CA
2014-12-02 805-668-2XXX 2000–2999Assigned CHARTER IP ENABLED SERVICES, LLC 792K ARROYOGRND CA
2014-11-25 805-586-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 CAMARILLO CA
2014-11-25 805-973-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C EL RIO CA
2014-11-20 805-719-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 THOUSAOAKS CA
2014-11-19 805-422-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 SIMIVALLEY CA
2014-11-18 805-422-8XXX 8000–8999Assigned TWC IP ENABLED SERVICES, LLC 793K SIMIVALLEY CA
2014-11-17 805-668-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 ARROYOGRND CA
2014-11-17 805-919-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K EL RIO CA
2014-11-13 805-826-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 VNTRA EAST CA
2014-11-13 805-826-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 VNTRA EAST CA
2014-11-13 805-826-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 VNTRA EAST CA
2014-11-13 805-826-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 VNTRA EAST CA
2014-10-28 805-316-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SNLUSOBSPO CA
2014-10-28 805-316-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SNLUSOBSPO 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.