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
2020-09-02 210-934-5XXX 5000–5999Assigned ONVOY, LLC - TX 903C SANANTONIO TX
2020-09-02 210-934-6XXX 6000–6999Assigned ONVOY, LLC - TX 903C SANANTONIO TX
2020-09-02 210-934-7XXX 7000–7999Assigned ONVOY, LLC - TX 903C SANANTONIO TX
2020-09-02 210-934-8XXX 8000–8999Assigned ONVOY, LLC - TX 903C SANANTONIO TX
2020-09-02 210-934-9XXX 9000–9999Assigned ONVOY, LLC - TX 903C SANANTONIO TX
2020-08-28 210-895-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 SANANTONIO TX
2020-08-28 210-895-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 SANANTONIO TX
2020-08-28 210-895-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 SANANTONIO TX
2020-08-28 210-895-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 SANANTONIO TX
2020-08-28 210-895-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 SANANTONIO TX
2020-08-28 210-895-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 SANANTONIO TX
2020-08-28 210-895-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 SANANTONIO TX
2020-08-28 210-895-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 SANANTONIO TX
2020-08-28 210-895-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 SANANTONIO TX
2020-08-28 210-895-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SANANTONIO TX
2020-08-28 210-898-1XXX 1000–1999Assigned NUSO, LLC 478J SANANTONIO TX
2020-08-26 210-891-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 SANANTONIO TX
2020-08-26 210-891-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 SANANTONIO TX
2020-08-26 210-891-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 SANANTONIO TX
2020-08-26 210-891-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 SANANTONIO TX
2020-08-14 210-891-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SANANTONIO TX
2020-08-14 210-891-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SANANTONIO TX
2020-08-14 210-891-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SANANTONIO TX
2020-08-14 210-891-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SANANTONIO TX
2020-08-14 210-891-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SANANTONIO TX
2020-08-14 210-891-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SANANTONIO TX
2020-08-12 210-873-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 SANANTONIO TX
2020-08-12 210-873-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 SANANTONIO TX
2020-08-12 210-873-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 SANANTONIO TX
2020-08-12 210-873-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 SANANTONIO TX
2020-08-12 210-873-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 SANANTONIO TX
2020-08-12 210-873-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 SANANTONIO TX
2020-08-12 210-873-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 SANANTONIO TX
2020-08-12 210-873-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 SANANTONIO TX
2020-08-12 210-873-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 SANANTONIO TX
2020-08-12 210-873-9XXX 9000–9999Assigned METROPCS, INC. 5562 SANANTONIO TX
2020-08-12 210-972-0XXX 0000–0999Assigned ONVOY, LLC - TX 903C SANANTONIO TX
2020-08-12 210-972-1XXX 1000–1999Assigned ONVOY, LLC - TX 903C SANANTONIO TX
2020-08-12 210-972-2XXX 2000–2999Assigned ONVOY, LLC - TX 903C SANANTONIO TX
2020-08-12 210-972-3XXX 3000–3999Assigned ONVOY, LLC - TX 903C SANANTONIO TX
2020-08-12 210-972-4XXX 4000–4999Assigned ONVOY, LLC - TX 903C SANANTONIO TX
2020-08-12 210-972-5XXX 5000–5999Assigned ONVOY, LLC - TX 903C SANANTONIO TX
2020-08-12 210-972-6XXX 6000–6999Assigned ONVOY, LLC - TX 903C SANANTONIO TX
2020-08-12 210-972-7XXX 7000–7999Assigned ONVOY, LLC - TX 903C SANANTONIO TX
2020-08-12 210-972-8XXX 8000–8999Assigned ONVOY, LLC - TX 903C SANANTONIO TX
2020-08-12 210-972-9XXX 9000–9999Assigned ONVOY, LLC - TX 903C SANANTONIO TX
2020-08-04 210-868-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 SANANTONIO TX
2020-08-04 210-868-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 SANANTONIO TX
2020-08-04 210-868-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 SANANTONIO TX
2020-08-04 210-868-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 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.