NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

6 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 626
ONVOY, LLC - CA 3
HD CARRIER LLC 3
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
2005-06-16 626-478-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 EL MONTE CA
2005-06-16 626-478-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 EL MONTE CA
2005-06-14 626-214-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 COVINA CA
2005-06-09 626-235-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 ALHAMBRA CA
2005-06-09 626-243-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 PSDN PSDN CA
2005-06-01 626-758-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 EL MONTE CA
2005-05-27 626-224-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 AZUSA CA
2005-05-25 626-609-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C AZUSA CA
2005-05-24 626-340-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ARCADIA CA
2005-05-24 626-340-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ARCADIA CA
2005-05-20 626-204-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PSDN PSDN CA
2005-05-20 626-204-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 PSDN PSDN CA
2005-05-20 626-249-6XXX 6000–6999Assigned ONVOY, LLC - CA 649C MONROVIA CA
2005-05-20 626-249-7XXX 7000–7999Assigned ONVOY, LLC - CA 649C MONROVIA CA
2005-05-20 626-249-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 MONROVIA CA
2005-05-20 626-275-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 MONROVIA CA
2005-05-13 626-345-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C PSDN PSDN CA
2005-05-12 626-243-2XXX 2000–2999Assigned ONVOY, LLC - CA 649C PSDN PSDN CA
2005-05-11 626-261-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 COVINA CA
2005-05-11 626-261-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 COVINA CA
2005-05-11 626-261-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 COVINA CA
2005-05-11 626-261-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 COVINA CA
2005-05-11 626-993-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 PSDN PSDN CA
2005-05-11 626-993-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 PSDN PSDN CA
2005-05-11 626-993-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 PSDN PSDN CA
2005-05-10 626-768-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 PSDN PSDN CA
2005-05-10 626-768-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 PSDN PSDN CA
2005-05-05 626-217-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 LA PUENTE CA
2005-05-05 626-513-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 AZUSA CA
2005-05-05 626-513-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 AZUSA CA
2005-04-22 626-731-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 SNGBLCNN CA
2005-04-20 626-736-9XXX 9000–9999Assigned METROPCS NETWORKS, LLC 899D COVINA CA
2005-04-15 626-542-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 EL MONTE CA
2005-04-14 626-513-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 AZUSA CA
2005-04-14 626-513-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 AZUSA CA
2005-04-06 626-758-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 EL MONTE CA
2005-03-30 626-217-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 LA PUENTE CA
2005-03-22 626-393-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 COVINA CA
2005-03-21 626-400-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 ARCADIA CA
2005-03-11 626-224-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 AZUSA CA
2005-03-10 626-228-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 EL MONTE CA
2005-03-10 626-433-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 EL MONTE CA
2005-03-10 626-434-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 EL MONTE CA
2005-03-09 626-921-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 SIERRAMADR CA
2005-03-04 626-257-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - CA 981E COVINA CA
2005-02-25 626-367-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 COVINA CA
2005-02-15 626-513-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 AZUSA CA
2005-02-14 626-476-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 ALHAMBRA CA
2005-02-14 626-476-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 ALHAMBRA CA
2005-02-14 626-476-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 ALHAMBRA 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.