NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

21 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 949
NEW CINGULAR WIRELESS PCS, LLC 18
ONVOY, LLC - CA 2
OPENTACT INC. 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
2015-06-08 949-557-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 IRVINE CA
2015-06-02 949-501-4XXX 4000–4999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L IRVINE CA
2015-06-02 949-557-2XXX 2000–2999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J IRVINE CA
2015-06-02 949-557-3XXX 3000–3999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J IRVINE CA
2015-06-02 949-557-4XXX 4000–4999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J IRVINE CA
2015-06-02 949-557-5XXX 5000–5999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J IRVINE CA
2015-06-02 949-557-6XXX 6000–6999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J IRVINE CA
2015-05-14 949-432-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 7240 NEWPORTBCH CA
2015-05-11 949-435-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 IRVINE CA
2015-05-11 949-447-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 IRVINE CA
2015-05-07 949-426-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 CAPITRNVLY CA
2015-05-07 949-558-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 CAPITRNVLY CA
2015-04-28 949-386-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 NEWPORTBCH CA
2015-04-28 949-531-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 NEWPORTBCH CA
2015-04-28 949-759-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 NEWPORTBCH CA
2015-04-27 949-447-5XXX 5000–5999Assigned IP HORIZON LLC 515J IRVINE CA
2015-04-24 949-524-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 NEWPORTBCH CA
2015-04-23 949-524-8XXX 8000–8999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L NEWPORTBCH CA
2015-04-23 949-532-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 SADLBK VLY CA
2015-04-23 949-532-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SADLBK VLY CA
2015-04-22 949-524-3XXX 3000–3999Assigned TWC IP ENABLED SERVICES, LLC 793K NEWPORTBCH CA
2015-04-15 949-329-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E TRABUCO CA
2015-04-15 949-534-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E TRABUCO CA
2015-04-15 949-534-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E TRABUCO CA
2015-04-15 949-546-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E TRABUCO CA
2015-04-15 949-546-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E TRABUCO CA
2015-04-13 949-343-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 IRVINE CA
2015-04-13 949-343-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 IRVINE CA
2015-04-13 949-343-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 IRVINE CA
2015-04-13 949-343-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 IRVINE CA
2015-04-13 949-343-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 IRVINE CA
2015-04-13 949-343-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 IRVINE CA
2015-04-13 949-343-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 IRVINE CA
2015-04-13 949-343-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 IRVINE CA
2015-04-13 949-343-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 IRVINE CA
2015-04-13 949-343-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 IRVINE CA
2015-04-08 949-353-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SADLBK VLY CA
2015-04-08 949-426-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 CAPITRNVLY CA
2015-04-08 949-426-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 CAPITRNVLY CA
2015-04-08 949-434-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SADLBK VLY CA
2015-04-08 949-434-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SADLBK VLY CA
2015-04-08 949-447-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 IRVINE CA
2015-04-08 949-447-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 IRVINE CA
2015-04-08 949-447-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 IRVINE CA
2015-04-08 949-447-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 IRVINE CA
2015-04-08 949-447-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 IRVINE CA
2015-04-08 949-447-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 IRVINE CA
2015-04-08 949-447-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 IRVINE CA
2015-04-08 949-524-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 NEWPORTBCH CA
2015-04-08 949-524-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 NEWPORTBCH 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.