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
2007-01-31 626-537-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 ALHAMBRA CA
2007-01-31 626-638-9XXX 9000–9999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 LA PUENTE CA
2007-01-29 626-548-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ALHAMBRA CA
2007-01-22 626-428-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 AZUSA CA
2007-01-18 626-678-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 COVINA CA
2007-01-16 626-224-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 AZUSA CA
2007-01-16 626-807-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 PSDN PSDN CA
2007-01-16 626-807-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 PSDN PSDN CA
2007-01-16 626-831-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 PSDN PSDN CA
2007-01-15 626-848-5XXX 5000–5999Assigned METROPCS NETWORKS, LLC 899D COVINA CA
2007-01-15 626-848-7XXX 7000–7999Assigned METROPCS NETWORKS, LLC 899D COVINA CA
2007-01-15 626-848-9XXX 9000–9999Assigned METROPCS NETWORKS, LLC 899D COVINA CA
2007-01-12 626-383-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 COVINA CA
2007-01-12 626-404-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 COVINA CA
2007-01-12 626-646-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 COVINA CA
2007-01-12 626-646-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 COVINA CA
2007-01-12 626-646-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 COVINA CA
2007-01-12 626-646-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 COVINA CA
2007-01-12 626-646-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 COVINA CA
2007-01-12 626-890-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 COVINA CA
2007-01-05 626-931-9XXX 9000–9999Assigned METROPCS NETWORKS, LLC 899D COVINA CA
2006-12-28 626-240-5XXX 5000–5999Assigned ONVOY, LLC - CA 649C PSDN PSDN CA
2006-12-27 626-466-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 SIERRAMADR CA
2006-12-19 626-465-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 LA PUENTE CA
2006-12-18 626-696-3XXX 3000–3999Assigned CHARTER IP ENABLED SERVICES, LLC 792K PSDN PSDN CA
2006-12-18 626-804-3XXX 3000–3999Assigned CHARTER IP ENABLED SERVICES, LLC 792K AZUSA CA
2006-12-14 626-646-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 COVINA CA
2006-12-11 626-213-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 EL MONTE CA
2006-12-11 626-466-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 SIERRAMADR CA
2006-12-11 626-538-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 ARCADIA CA
2006-12-11 626-817-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 PSDN PSDN CA
2006-12-05 626-239-6XXX 6000–6999Assigned TWC IP ENABLED SERVICES, LLC 793K MONROVIA CA
2006-12-05 626-325-3XXX 3000–3999Assigned TWC IP ENABLED SERVICES, LLC 793K SIERRAMADR CA
2006-12-05 626-348-8XXX 8000–8999Assigned TWC IP ENABLED SERVICES, LLC 793K ARCADIA CA
2006-12-05 626-363-4XXX 4000–4999Assigned TWC IP ENABLED SERVICES, LLC 793K LA PUENTE CA
2006-12-05 626-387-9XXX 9000–9999Assigned TWC IP ENABLED SERVICES, LLC 793K AZUSA CA
2006-12-05 626-542-3XXX 3000–3999Assigned TWC IP ENABLED SERVICES, LLC 793K EL MONTE CA
2006-11-22 626-607-9XXX 9000–9999Assigned METROPCS NETWORKS, LLC 899D ALHAMBRA CA
2006-11-20 626-606-9XXX 9000–9999Assigned ONVOY, LLC - CA 649C LA PUENTE CA
2006-11-07 626-434-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 EL MONTE CA
2006-10-27 626-537-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 ALHAMBRA CA
2006-10-27 626-756-8XXX 8000–8999Assigned DMR COMMUNICATIONS INC. - CA 478A COVINA CA
2006-10-17 626-549-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 COVINA CA
2006-10-16 626-254-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 ARCADIA CA
2006-10-10 626-660-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 PSDN PSDN CA
2006-10-10 626-660-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 PSDN PSDN CA
2006-10-09 626-500-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 ALHAMBRA CA
2006-10-09 626-696-8XXX 8000–8999Assigned ONVOY, LLC - CA 649C PSDN PSDN CA
2006-09-29 626-435-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 LA PUENTE CA
2006-09-29 626-529-3XXX 3000–3999Assigned CHARTER IP ENABLED SERVICES, LLC 792K PSDN PSDN 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.