NumberResearch Membership · Data 09/21/2026

Recent thousands-block assignments

21 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026

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
2018-12-24 949-763-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 NEWPORTBCH CA
2018-12-19 949-503-1XXX 1000–1999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L CAPITRNVLY CA
2018-12-19 949-503-2XXX 2000–2999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L CAPITRNVLY CA
2018-12-19 949-503-3XXX 3000–3999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L CAPITRNVLY CA
2018-12-19 949-503-4XXX 4000–4999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L CAPITRNVLY CA
2018-12-12 949-317-3XXX 3000–3999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L SADLBK VLY CA
2018-12-12 949-446-4XXX 4000–4999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L SADLBK VLY CA
2018-12-12 949-446-6XXX 6000–6999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L SADLBK VLY CA
2018-12-12 949-446-9XXX 9000–9999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L SADLBK VLY CA
2018-11-05 949-763-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 7240 NEWPORTBCH CA
2018-10-19 949-490-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 IRVINE CA
2018-10-11 949-516-9XXX 9000–9999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F LAGUNA BCH CA
2018-10-11 949-531-5XXX 5000–5999Assigned METROPCS NETWORKS, LLC 899D NEWPORTBCH CA
2018-10-08 949-220-1XXX 1000–1999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F NEWPORTBCH CA
2018-10-04 949-449-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CAPITRNVLY CA
2018-09-26 949-490-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K IRVINE CA
2018-09-24 949-490-5XXX 5000–5999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F IRVINE CA
2018-09-24 949-942-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 NEWPORTBCH CA
2018-09-19 949-409-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E LAGUNA BCH CA
2018-09-19 949-409-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E LAGUNA BCH CA
2018-09-19 949-409-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E LAGUNA BCH CA
2018-09-19 949-409-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E LAGUNA BCH CA
2018-09-19 949-409-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E LAGUNA BCH CA
2018-09-19 949-409-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E LAGUNA BCH CA
2018-09-14 949-317-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 SADLBK VLY CA
2018-09-14 949-317-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 SADLBK VLY CA
2018-09-13 949-490-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C IRVINE CA
2018-09-13 949-490-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C IRVINE CA
2018-09-10 949-434-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 SADLBK VLY CA
2018-08-30 949-942-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 NEWPORTBCH CA
2018-08-28 949-401-9XXX 9000–9999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F RNCHOVIEJO CA
2018-08-28 949-426-7XXX 7000–7999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F CAPITRNVLY CA
2018-08-23 949-490-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 IRVINE CA
2018-08-23 949-490-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 IRVINE CA
2018-08-22 949-750-8XXX 8000–8999Assigned PEERLESS NETWORK OF CALIFORNIA, LLC - CA 373F TRABUCO CA
2018-08-17 949-490-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - CA 7240 IRVINE CA
2018-08-06 949-317-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 SADLBK VLY CA
2018-08-01 949-418-7XXX 7000–7999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L IRVINE CA
2018-08-01 949-418-8XXX 8000–8999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L IRVINE CA
2018-08-01 949-418-9XXX 9000–9999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L IRVINE CA
2018-07-20 949-316-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 IRVINE CA
2018-07-20 949-345-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 IRVINE CA
2018-07-20 949-346-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 IRVINE CA
2018-07-20 949-358-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 IRVINE CA
2018-07-20 949-774-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 IRVINE CA
2018-07-20 949-774-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 IRVINE CA
2018-07-20 949-774-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 IRVINE CA
2018-07-20 949-880-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 IRVINE CA
2018-07-20 949-988-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 IRVINE CA
2018-07-20 949-988-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 IRVINE CA

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.