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
2013-11-22 818-696-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E GLENDALE CA
2013-11-22 818-852-0XXX 0000–0999Assigned PAETEC ITEL, LLC 829J AGOURA CA
2013-11-20 818-853-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 NO HOLLYWD CA
2013-11-11 818-696-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J GLENDALE CA
2013-11-01 818-853-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C NO HOLLYWD CA
2013-11-01 818-853-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C NO HOLLYWD CA
2013-10-30 818-853-1XXX 1000–1999Assigned METROPCS NETWORKS, LLC 899D NO HOLLYWD CA
2013-10-23 818-967-5XXX 5000–5999Assigned CONNECTTO COMMUNICATIONS, INC. - CA 863D BRBN BRBN CA
2013-10-21 818-616-5XXX 5000–5999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J VAN NUYS CA
2013-10-17 818-852-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C AGOURA CA
2013-10-17 818-853-0XXX 0000–0999Assigned PAETEC ITEL, LLC 829J NO HOLLYWD CA
2013-10-15 818-616-1XXX 1000–1999Assigned TWC IP ENABLED SERVICES, LLC 793K VAN NUYS CA
2013-10-15 818-616-2XXX 2000–2999Assigned TWC IP ENABLED SERVICES, LLC 793K VAN NUYS CA
2013-10-04 818-616-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 VAN NUYS CA
2013-10-04 818-616-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 VAN NUYS CA
2013-10-04 818-853-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 NO HOLLYWD CA
2013-09-27 818-659-2XXX 2000–2999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F PSDN LACN CA
2013-09-27 818-697-9XXX 9000–9999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F RESEDA CA
2013-09-26 818-856-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 NO HOLLYWD CA
2013-09-04 818-853-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 NO HOLLYWD CA
2013-08-30 818-616-3XXX 3000–3999Assigned AT&T ENTERPRISES, LLC 516C VAN NUYS CA
2013-08-27 818-722-0XXX 0000–0999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F SNFN SPLV CA
2013-08-27 818-949-1XXX 1000–1999Assigned ONVOY, LLC - CA 649C PSDN LACN CA
2013-08-26 818-853-7XXX 7000–7999Assigned AT&T ENTERPRISES, LLC 516C NO HOLLYWD CA
2013-08-06 818-532-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 AGOURA CA
2013-08-05 818-697-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C RESEDA CA
2013-08-01 818-724-2XXX 2000–2999Assigned METROPCS NETWORKS, LLC 899D SNFN SPLV CA
2013-07-23 818-616-0XXX 0000–0999Assigned METROPCS NETWORKS, LLC 899D VAN NUYS CA
2013-07-23 818-616-9XXX 9000–9999Assigned TWC IP ENABLED SERVICES, LLC 793K VAN NUYS CA
2013-07-22 818-856-8XXX 8000–8999Assigned TWC IP ENABLED SERVICES, LLC 793K NO HOLLYWD CA
2013-06-28 818-301-8XXX 8000–8999Assigned METROPCS NETWORKS, LLC 899D NO HOLLYWD CA
2013-06-20 818-877-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 AGOURA CA
2013-06-19 818-452-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 NO HOLLYWD CA
2013-06-18 818-479-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E VAN NUYS CA
2013-06-18 818-817-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E VAN NUYS CA
2013-06-17 818-452-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E NO HOLLYWD CA
2013-06-17 818-452-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E NO HOLLYWD CA
2013-06-17 818-452-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E NO HOLLYWD CA
2013-06-13 818-938-9XXX 9000–9999Assigned TWC IP ENABLED SERVICES, LLC 793K RESEDA CA
2013-06-11 818-452-9XXX 9000–9999Assigned TWC IP ENABLED SERVICES, LLC 793K NO HOLLYWD CA
2013-06-11 818-861-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 BRBN BRBN CA
2013-06-10 818-452-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 NO HOLLYWD CA
2013-06-06 818-593-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 CANOGAPARK CA
2013-06-06 818-697-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E RESEDA CA
2013-06-06 818-697-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E RESEDA CA
2013-06-05 818-271-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SNFN GRHL CA
2013-06-04 818-674-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E RESEDA CA
2013-05-28 818-405-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E LACRSCENTA CA
2013-05-22 818-699-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 AGOURA CA
2013-05-22 818-699-3XXX 3000–3999Assigned 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.