NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

6 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 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
2003-10-15 626-321-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ARCADIA CA
2003-10-15 626-321-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ARCADIA CA
2003-09-25 626-258-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 EL MONTE CA
2003-09-25 626-277-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 EL MONTE CA
2003-09-25 626-315-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 EL MONTE CA
2003-09-25 626-315-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 EL MONTE CA
2003-09-25 626-315-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 EL MONTE CA
2003-09-25 626-329-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 EL MONTE CA
2003-09-25 626-329-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 EL MONTE CA
2003-09-25 626-329-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 EL MONTE CA
2003-09-25 626-329-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 EL MONTE CA
2003-09-25 626-377-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 EL MONTE CA
2003-09-25 626-377-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 EL MONTE CA
2003-09-25 626-377-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 EL MONTE CA
2003-09-25 626-377-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 EL MONTE CA
2003-09-25 626-377-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 EL MONTE CA
2003-09-25 626-377-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 EL MONTE CA
2003-09-25 626-377-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 EL MONTE CA
2003-09-25 626-450-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 EL MONTE CA
2003-09-25 626-453-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 EL MONTE CA
2003-09-25 626-456-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 EL MONTE CA
2003-09-25 626-456-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 EL MONTE CA
2003-09-25 626-518-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 EL MONTE CA
2003-09-25 626-552-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 EL MONTE CA
2003-09-25 626-552-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 EL MONTE CA
2003-09-25 626-552-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 EL MONTE CA
2003-09-22 626-216-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 ALHAMBRA CA
2003-09-22 626-216-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 ALHAMBRA CA
2003-09-18 626-372-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 PSDN PSDN CA
2003-09-18 626-372-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 PSDN PSDN CA
2003-09-18 626-755-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 PSDN PSDN CA
2003-09-11 626-373-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 COVINA CA
2003-09-11 626-383-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 COVINA CA
2003-09-11 626-383-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 COVINA CA
2003-09-11 626-383-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 COVINA CA
2003-09-11 626-383-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 COVINA CA
2003-09-11 626-383-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 COVINA CA
2003-09-11 626-383-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 COVINA CA
2003-09-11 626-383-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 COVINA CA
2003-09-02 626-807-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 PSDN PSDN CA
2003-08-15 626-755-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 PSDN PSDN CA
2003-08-15 626-755-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 PSDN PSDN CA
2003-08-15 626-755-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - CA 6006 PSDN PSDN CA
2003-08-06 626-638-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - CA 8826 LA PUENTE CA
2003-08-05 626-241-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ARCADIA CA
2003-08-05 626-241-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ARCADIA CA
2003-08-05 626-241-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ARCADIA CA
2003-08-05 626-241-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC 6010 ARCADIA CA
2003-08-04 626-240-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 PSDN PSDN CA
2003-08-04 626-240-7XXX 7000–7999Assigned METROPCS NETWORKS, LLC 899D PSDN PSDN 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.