NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

21 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2005-03-30 949-274-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 NEWPORTBCH CA
2005-03-30 949-274-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 NEWPORTBCH CA
2005-03-30 949-274-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 NEWPORTBCH CA
2005-03-30 949-287-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 NEWPORTBCH CA
2005-03-25 949-273-3XXX 3000–3999Assigned AT&T ENTERPRISES, LLC 516C SADLBK VLY CA
2005-03-14 949-309-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SADLBK VLY CA
2005-03-14 949-309-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SADLBK VLY CA
2005-03-14 949-309-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SADLBK VLY CA
2005-03-14 949-309-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SADLBK VLY CA
2005-03-06 949-200-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 NEWPORTBCH CA
2005-03-06 949-273-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SADLBK VLY CA
2005-03-06 949-502-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C IRVINE CA
2005-03-06 949-547-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 CAPITRNVLY CA
2005-03-04 949-910-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 IRVINE CA
2005-03-02 949-276-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 CAPITRNVLY CA
2005-02-24 949-681-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 IRVINE CA
2005-02-18 949-528-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SADLBK VLY CA
2005-02-18 949-528-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SADLBK VLY CA
2005-02-18 949-544-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SADLBK VLY CA
2005-02-15 949-485-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 CAPITRNVLY CA
2005-02-09 949-201-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 CAPITRNVLY CA
2005-02-02 949-600-5XXX 5000–5999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L SADLBK VLY CA
2005-02-02 949-600-6XXX 6000–6999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L SADLBK VLY CA
2005-02-01 949-226-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 CAPITRNVLY CA
2005-01-31 949-502-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 IRVINE CA
2005-01-21 949-468-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 IRVINE CA
2005-01-20 949-502-7XXX 7000–7999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L IRVINE CA
2005-01-20 949-502-8XXX 8000–8999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L IRVINE CA
2005-01-14 949-534-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C TRABUCO CA
2005-01-14 949-534-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C TRABUCO CA
2005-01-14 949-534-9XXX 9000–9999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 TRABUCO CA
2005-01-13 949-973-5XXX 5000–5999Assigned METROPCS NETWORKS, LLC 899D CAPITRNVLY CA
2005-01-07 949-326-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 RNCHOVIEJO CA
2005-01-07 949-459-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 TRABUCO CA
2005-01-07 949-680-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SADLBK VLY CA
2005-01-07 949-680-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SADLBK VLY CA
2005-01-07 949-680-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 SADLBK VLY CA
2004-12-15 949-485-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 CAPITRNVLY CA
2004-12-15 949-485-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 CAPITRNVLY CA
2004-12-14 949-726-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - CA 7139 IRVINE CA
2004-12-08 949-355-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 NEWPORTBCH CA
2004-12-08 949-355-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 NEWPORTBCH CA
2004-12-06 949-315-3XXX 3000–3999Assigned ONVOY, LLC - CA 649C LAGUNA BCH CA
2004-11-24 949-331-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 IRVINE CA
2004-11-22 949-209-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 NEWPORTBCH CA
2004-11-18 949-276-4XXX 4000–4999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L CAPITRNVLY CA
2004-11-18 949-276-5XXX 5000–5999Assigned COMCAST PHONE OF CALIFORNIA, LLC 394L CAPITRNVLY CA
2004-11-17 949-900-5XXX 5000–5999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J SADLBK VLY CA
2004-11-15 949-231-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 IRVINE CA
2004-11-15 949-266-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 IRVINE CA

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.