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
2012-02-23 818-821-3XXX 3000–3999Assigned TWC IP ENABLED SERVICES, LLC 793K NO HOLLYWD CA
2012-02-21 818-643-8XXX 8000–8999Assigned PAETEC ITEL, LLC 829J NO HOLLYWD CA
2012-02-15 818-962-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E BRBN SNVY CA
2012-02-14 818-724-1XXX 1000–1999Assigned METROPCS NETWORKS, LLC 899D SNFN SPLV CA
2012-02-14 818-798-6XXX 6000–6999Assigned PACIFIC BELL 9740 RESEDA CA
2012-02-14 818-798-7XXX 7000–7999Assigned PACIFIC BELL 9740 RESEDA CA
2012-02-10 818-839-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 GLENDALE CA
2012-02-10 818-925-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SUNLD TJNG CA
2012-02-10 818-962-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 BRBN SNVY CA
2012-02-07 818-477-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C NORTHRIDGE CA
2012-02-01 818-330-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 LACRSCENTA CA
2012-02-01 818-514-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 RESEDA CA
2012-02-01 818-869-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SNFN PACM CA
2012-02-01 818-962-3XXX 3000–3999Assigned CHARTER IP ENABLED SERVICES, LLC 792K BRBN SNVY CA
2012-01-30 818-963-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 CANOGAPARK CA
2011-12-16 818-869-7XXX 7000–7999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J SNFN PACM CA
2011-12-13 818-280-4XXX 4000–4999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F NORTHRIDGE CA
2011-12-13 818-457-3XXX 3000–3999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F RESEDA CA
2011-12-13 818-657-7XXX 7000–7999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F CANOGAPARK CA
2011-12-13 818-810-8XXX 8000–8999Assigned METROPCS NETWORKS, LLC 899D SNFN SPLV CA
2011-12-13 818-821-2XXX 2000–2999Assigned METROPCS NETWORKS, LLC 899D NO HOLLYWD CA
2011-11-30 818-350-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 NORTHRIDGE CA
2011-11-30 818-356-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SNFN SNFN CA
2011-11-14 818-932-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CANOGAPARK CA
2011-11-14 818-932-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CANOGAPARK CA
2011-11-14 818-932-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CANOGAPARK CA
2011-11-11 818-962-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 BRBN SNVY CA
2011-10-27 818-649-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 GLENDALE CA
2011-10-21 818-839-8XXX 8000–8999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F GLENDALE CA
2011-10-05 818-651-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 AGOURA CA
2011-09-19 818-721-1XXX 1000–1999Assigned METROPCS NETWORKS, LLC 899D NORTHRIDGE CA
2011-09-19 818-869-5XXX 5000–5999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J SNFN PACM CA
2011-09-14 818-201-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E RESEDA CA
2011-09-14 818-275-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E LACRSCENTA CA
2011-09-02 818-651-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 AGOURA CA
2011-09-02 818-651-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 AGOURA CA
2011-08-25 818-869-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SNFN PACM CA
2011-08-19 818-839-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 GLENDALE CA
2011-08-11 818-839-4XXX 4000–4999Assigned ONVOY, LLC - CA 649C GLENDALE CA
2011-08-05 818-579-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 NO HOLLYWD CA
2011-08-05 818-962-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 BRBN SNVY CA
2011-08-03 818-488-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SNFN GRHL CA
2011-08-03 818-646-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E VAN NUYS CA
2011-08-03 818-659-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E PSDN LACN CA
2011-08-03 818-839-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E GLENDALE CA
2011-08-03 818-906-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E VAN NUYS CA
2011-08-03 818-945-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E GLENDALE CA
2011-08-03 818-945-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E GLENDALE CA
2011-07-26 818-465-3XXX 3000–3999Assigned AT&T ENTERPRISES, LLC 516C VAN NUYS CA
2011-07-21 818-217-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E SNFN GRHL 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.