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
2014-07-09 949-531-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 NEWPORTBCH CA
2014-07-08 949-537-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C IRVINE CA
2014-07-08 949-562-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 IRVINE CA
2014-07-08 949-562-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 IRVINE CA
2014-07-03 949-558-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CAPITRNVLY CA
2014-06-26 949-531-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 NEWPORTBCH CA
2014-06-26 949-531-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 NEWPORTBCH CA
2014-06-26 949-558-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 CAPITRNVLY CA
2014-06-24 949-446-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SADLBK VLY CA
2014-06-24 949-446-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SADLBK VLY CA
2014-06-24 949-558-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 CAPITRNVLY CA
2014-06-20 949-416-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 LAGUNA BCH CA
2014-06-16 949-288-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J TRABUCO CA
2014-06-11 949-397-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 LAGUNA BCH CA
2014-06-09 949-558-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 CAPITRNVLY CA
2014-06-04 949-259-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J RNCHOVIEJO CA
2014-06-04 949-536-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 IRVINE CA
2014-06-03 949-446-8XXX 8000–8999Assigned AT&T ENTERPRISES, LLC 516C SADLBK VLY CA
2014-06-02 949-426-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 CAPITRNVLY CA
2014-06-02 949-426-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 CAPITRNVLY CA
2014-06-02 949-426-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 CAPITRNVLY CA
2014-06-02 949-426-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 CAPITRNVLY CA
2014-06-02 949-426-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 CAPITRNVLY CA
2014-06-02 949-426-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 CAPITRNVLY CA
2014-05-21 949-325-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C CAPITRNVLY CA
2014-05-15 949-431-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 IRVINE CA
2014-05-15 949-536-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 IRVINE CA
2014-05-15 949-536-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 IRVINE CA
2014-05-15 949-536-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 IRVINE CA
2014-05-15 949-536-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 IRVINE CA
2014-05-13 949-531-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 NEWPORTBCH CA
2014-05-06 949-873-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C NEWPORTBCH CA
2014-04-23 949-431-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E IRVINE CA
2014-04-23 949-431-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E IRVINE CA
2014-04-23 949-431-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E IRVINE CA
2014-04-23 949-431-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E IRVINE CA
2014-04-23 949-536-2XXX 2000–2999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J IRVINE CA
2014-04-23 949-536-3XXX 3000–3999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J IRVINE CA
2014-04-11 949-531-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 NEWPORTBCH CA
2014-04-10 949-446-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SADLBK VLY CA
2014-04-03 949-536-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 IRVINE CA
2014-04-03 949-536-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 IRVINE CA
2014-04-02 949-344-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 IRVINE CA
2014-04-02 949-344-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 IRVINE CA
2014-04-02 949-397-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 LAGUNA BCH CA
2014-04-02 949-431-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 IRVINE CA
2014-04-02 949-431-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 IRVINE CA
2014-04-02 949-431-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 IRVINE CA
2014-04-02 949-431-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 IRVINE CA
2014-04-02 949-629-5XXX 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.