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
2004-11-12 818-455-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VAN NUYS CA
2004-11-12 818-455-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VAN NUYS CA
2004-11-12 818-461-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VAN NUYS CA
2004-11-05 818-572-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 GLENDALE CA
2004-11-05 818-913-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 GLENDALE CA
2004-10-26 818-284-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 NO HOLLYWD CA
2004-10-18 818-270-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 SNFN SNFN CA
2004-10-15 818-483-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 AGOURA CA
2004-10-13 818-284-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 NO HOLLYWD CA
2004-10-13 818-924-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SNFN SPLV CA
2004-10-07 818-264-8XXX 8000–8999Assigned METROPCS NETWORKS, LLC 899D CANOGAPARK CA
2004-10-07 818-984-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 VAN NUYS CA
2004-10-04 818-274-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 CANOGAPARK CA
2004-10-04 818-274-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 CANOGAPARK CA
2004-10-04 818-795-0XXX 0000–0999Assigned METROPCS NETWORKS, LLC 899D BRBN BRBN CA
2004-09-23 818-568-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 BRBN BRBN CA
2004-09-23 818-568-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 BRBN BRBN CA
2004-09-23 818-568-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 BRBN BRBN CA
2004-09-23 818-675-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 SNFN SNFN CA
2004-09-23 818-823-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 BRBN BRBN CA
2004-09-15 818-235-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VAN NUYS CA
2004-09-15 818-257-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VAN NUYS CA
2004-09-15 818-257-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VAN NUYS CA
2004-09-15 818-325-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 VAN NUYS CA
2004-09-14 818-744-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 SNFN SNFN CA
2004-09-08 818-462-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 RESEDA CA
2004-09-08 818-462-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 RESEDA CA
2004-09-07 818-274-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CANOGAPARK CA
2004-09-07 818-483-1XXX 1000–1999Assigned PAETEC ITEL, LLC 829J AGOURA CA
2004-09-01 818-257-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J VAN NUYS CA
2004-09-01 818-462-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 RESEDA CA
2004-08-31 818-274-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 CANOGAPARK CA
2004-08-21 818-284-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 NO HOLLYWD CA
2004-08-20 818-237-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 BRBN BRBN CA
2004-08-19 818-245-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 GLENDALE CA
2004-08-19 818-279-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 LACRSCENTA CA
2004-08-05 818-251-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 CANOGAPARK CA
2004-07-23 818-272-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 SNFN PACM CA
2004-07-22 818-480-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J BRBN BRBN CA
2004-07-20 818-357-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 NORTHRIDGE CA
2004-07-20 818-357-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 NORTHRIDGE CA
2004-07-19 818-309-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 AGOURA CA
2004-07-19 818-309-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 AGOURA CA
2004-07-19 818-518-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 CANOGAPARK CA
2004-07-19 818-518-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 CANOGAPARK CA
2004-07-19 818-518-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 CANOGAPARK CA
2004-07-16 818-602-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 VAN NUYS CA
2004-07-13 818-442-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 VAN NUYS CA
2004-07-13 818-983-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 VAN NUYS CA
2004-07-08 818-684-0XXX 0000–0999Assigned PACIFIC BELL 9740 NO HOLLYWD 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.