NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

0 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, all time — NPA 210
NEW CINGULAR WIRELESS PCS, LLC - IL 1054
T-MOBILE USA, INC. 668
ONVOY, LLC - TX 395
BANDWIDTH.COM CLEC, LLC - TX 371
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 314
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
2021-09-27 210-329-0XXX 0000–0999Assigned ONVOY SPECTRUM, LLC 624H SANANTONIO TX
2021-09-27 210-329-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H SANANTONIO TX
2021-09-27 210-329-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H SANANTONIO TX
2021-09-27 210-329-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H SANANTONIO TX
2021-09-27 210-329-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H SANANTONIO TX
2021-09-27 210-329-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H SANANTONIO TX
2021-09-27 210-329-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H SANANTONIO TX
2021-09-27 210-329-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H SANANTONIO TX
2021-09-27 210-329-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H SANANTONIO TX
2021-06-09 210-580-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 SANANTONIO TX
2021-06-09 210-868-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SANANTONIO TX
2021-06-09 210-935-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 SANANTONIO TX
2021-06-09 210-935-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 SANANTONIO TX
2021-06-09 210-935-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 SANANTONIO TX
2021-06-09 210-935-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 SANANTONIO TX
2021-06-09 210-935-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 SANANTONIO TX
2021-06-09 210-935-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 SANANTONIO TX
2021-06-09 210-935-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SANANTONIO TX
2021-04-22 210-868-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H SANANTONIO TX
2021-04-22 210-868-8XXX 8000–8999Assigned ONVOY SPECTRUM, LLC 624H SANANTONIO TX
2021-04-06 210-868-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 SANANTONIO TX
2021-03-01 210-964-0XXX 0000–0999Assigned ONVOY, LLC - TX 903C SANANTONIO TX
2021-03-01 210-964-1XXX 1000–1999Assigned ONVOY, LLC - TX 903C SANANTONIO TX
2021-03-01 210-964-2XXX 2000–2999Assigned ONVOY, LLC - TX 903C SANANTONIO TX
2021-03-01 210-964-3XXX 3000–3999Assigned ONVOY, LLC - TX 903C SANANTONIO TX
2021-03-01 210-964-4XXX 4000–4999Assigned ONVOY, LLC - TX 903C SANANTONIO TX
2021-03-01 210-964-5XXX 5000–5999Assigned ONVOY, LLC - TX 903C SANANTONIO TX
2021-03-01 210-964-6XXX 6000–6999Assigned ONVOY, LLC - TX 903C SANANTONIO TX
2021-03-01 210-964-7XXX 7000–7999Assigned ONVOY, LLC - TX 903C SANANTONIO TX
2021-03-01 210-964-8XXX 8000–8999Assigned ONVOY, LLC - TX 903C SANANTONIO TX
2021-03-01 210-964-9XXX 9000–9999Assigned ONVOY, LLC - TX 903C SANANTONIO TX
2021-03-01 210-985-0XXX 0000–0999Assigned ONVOY, LLC - TX 903C SANANTONIO TX
2021-03-01 210-985-1XXX 1000–1999Assigned ONVOY, LLC - TX 903C SANANTONIO TX
2021-03-01 210-985-2XXX 2000–2999Assigned ONVOY, LLC - TX 903C SANANTONIO TX
2021-03-01 210-985-3XXX 3000–3999Assigned ONVOY, LLC - TX 903C SANANTONIO TX
2021-03-01 210-985-4XXX 4000–4999Assigned ONVOY, LLC - TX 903C SANANTONIO TX
2021-03-01 210-985-5XXX 5000–5999Assigned ONVOY, LLC - TX 903C SANANTONIO TX
2021-03-01 210-985-6XXX 6000–6999Assigned ONVOY, LLC - TX 903C SANANTONIO TX
2021-03-01 210-985-7XXX 7000–7999Assigned ONVOY, LLC - TX 903C SANANTONIO TX
2021-03-01 210-985-8XXX 8000–8999Assigned ONVOY, LLC - TX 903C SANANTONIO TX
2021-03-01 210-985-9XXX 9000–9999Assigned ONVOY, LLC - TX 903C SANANTONIO TX
2021-02-25 210-956-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 SANANTONIO TX
2021-02-25 210-956-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 SANANTONIO TX
2021-02-25 210-956-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 SANANTONIO TX
2021-02-25 210-956-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 SANANTONIO TX
2021-02-25 210-956-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 SANANTONIO TX
2021-02-25 210-956-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 SANANTONIO TX
2021-02-25 210-956-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 SANANTONIO TX
2021-02-25 210-956-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 SANANTONIO TX
2021-02-25 210-956-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 SANANTONIO TX

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.