NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

1 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 818
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
2013-05-22 818-699-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 AGOURA CA
2013-05-22 818-699-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 AGOURA CA
2013-05-09 818-806-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E BRBN SNVY CA
2013-05-09 818-806-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E BRBN SNVY CA
2013-05-09 818-806-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E BRBN SNVY CA
2013-05-08 818-401-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 RESEDA CA
2013-05-08 818-401-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 RESEDA CA
2013-05-03 818-452-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 NO HOLLYWD CA
2013-04-08 818-330-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 LACRSCENTA CA
2013-03-28 818-296-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 GLENDALE CA
2013-03-28 818-639-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SNFN SNFN CA
2013-03-26 818-452-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C NO HOLLYWD CA
2013-03-22 818-647-7XXX 7000–7999Assigned LEVEL 3 TELECOM OF CALIFORNIA, LP - CA 7718 VAN NUYS CA
2013-03-19 818-875-8XXX 8000–8999Assigned TWC IP ENABLED SERVICES, LLC 793K SUNLD TJNG CA
2013-03-14 818-654-6XXX 6000–6999Assigned TWC IP ENABLED SERVICES, LLC 793K RESEDA CA
2013-03-12 818-614-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C RESEDA CA
2013-03-12 818-699-6XXX 6000–6999Assigned TWC IP ENABLED SERVICES, LLC 793K AGOURA CA
2013-03-12 818-798-9XXX 9000–9999Assigned ONVOY, LLC - CA 649C RESEDA CA
2013-03-12 818-821-8XXX 8000–8999Assigned TWC IP ENABLED SERVICES, LLC 793K NO HOLLYWD CA
2013-03-04 818-573-5XXX 5000–5999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F SNFN PACM CA
2013-03-04 818-638-1XXX 1000–1999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F GLENDALE CA
2013-03-04 818-655-0XXX 0000–0999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F NO HOLLYWD CA
2013-03-04 818-862-4XXX 4000–4999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F LACRSCENTA CA
2013-03-04 818-875-7XXX 7000–7999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F SUNLD TJNG CA
2013-02-27 818-538-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C VAN NUYS CA
2013-02-27 818-583-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C PSDN LACN CA
2013-02-27 818-699-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C AGOURA CA
2013-02-27 818-806-0XXX 0000–0999Assigned ONVOY, LLC - CA 649C BRBN SNVY CA
2013-02-22 818-699-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 AGOURA CA
2013-02-22 818-699-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 AGOURA CA
2013-02-22 818-851-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 AGOURA CA
2013-02-22 818-877-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 AGOURA CA
2013-02-14 818-616-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K VAN NUYS CA
2013-02-08 818-798-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 RESEDA CA
2013-02-01 818-452-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J NO HOLLYWD CA
2013-02-01 818-462-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 RESEDA CA
2013-01-30 818-975-8XXX 8000–8999Assigned TWC IP ENABLED SERVICES, LLC 793K RESEDA CA
2013-01-29 818-806-4XXX 4000–4999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J BRBN SNVY CA
2013-01-29 818-877-1XXX 1000–1999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J AGOURA CA
2013-01-28 818-296-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E GLENDALE CA
2013-01-28 818-305-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E VAN NUYS CA
2013-01-28 818-465-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E VAN NUYS CA
2013-01-28 818-539-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E GLENDALE CA
2013-01-28 818-630-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E GLENDALE CA
2013-01-17 818-485-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C SNFN PACM CA
2013-01-16 818-657-1XXX 1000–1999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7139 CANOGAPARK CA
2013-01-09 818-699-9XXX 9000–9999Assigned ONVOY, LLC - CA 649C AGOURA CA
2013-01-09 818-856-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 NO HOLLYWD CA
2013-01-09 818-856-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 NO HOLLYWD CA
2012-12-21 818-877-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 AGOURA 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.