NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

24 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 254
ONVOY, LLC - TX 13
NEW CINGULAR WIRELESS PCS, LLC - IL 4
BANDWIDTH.COM CLEC, LLC - TX 3
AHOI LLC 2
TELEPORT COMMUNICATIONS AMERICA, LLC - TX 1
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
2021-09-20 254-450-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 MARLIN TX
2021-09-20 254-731-3XXX 3000–3999Assigned ONVOY, LLC - TX 903C RISINGSTAR TX
2021-09-17 254-803-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 MARLIN TX
2021-09-17 254-803-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 MARLIN TX
2021-09-17 254-883-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 MARLIN TX
2021-09-15 254-206-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 GATESVILLE TX
2021-09-15 254-269-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 GLEN ROSE TX
2021-09-15 254-308-1XXX 1000–1999Assigned ONVOY, LLC - TX 903C SALADO TX
2021-09-15 254-308-9XXX 9000–9999Assigned ONVOY, LLC - TX 903C SALADO TX
2021-09-15 254-436-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 GLEN ROSE TX
2021-09-15 254-468-2XXX 2000–2999Assigned ONVOY, LLC - TX 903C HOLLAND TX
2021-09-15 254-473-4XXX 4000–4999Assigned ONVOY, LLC - TX 903C MOFFAT TX
2021-09-15 254-474-7XXX 7000–7999Assigned ONVOY, LLC - TX 903C OENAVILLE TX
2021-09-15 254-475-4XXX 4000–4999Assigned ONVOY, LLC - TX 903C REAGAN TX
2021-09-15 254-803-4XXX 4000–4999Assigned METROPCS, INC. 5562 MARLIN TX
2021-09-15 254-803-8XXX 8000–8999Assigned METROPCS, INC. 5562 MARLIN TX
2021-09-14 254-946-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F MAY TX
2021-09-10 254-309-0XXX 0000–0999Assigned ONVOY, LLC - TX 903C ROSEBUD TX
2021-09-10 254-448-2XXX 2000–2999Assigned ONVOY, LLC - TX 903C BARTLETT TX
2021-09-10 254-467-2XXX 2000–2999Assigned ONVOY, LLC - TX 903C EDDY TX
2021-09-09 254-422-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 MARLIN TX
2021-09-09 254-422-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 MARLIN TX
2021-09-09 254-422-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 MARLIN TX
2021-09-09 254-422-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 MARLIN TX
2021-09-09 254-426-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 MARLIN TX
2021-09-09 254-426-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 MARLIN TX
2021-09-09 254-426-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 MARLIN TX
2021-09-09 254-426-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 MARLIN TX
2021-09-09 254-500-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 TEMPLE TX
2021-09-09 254-500-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 TEMPLE TX
2021-09-09 254-563-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 TEMPLE TX
2021-09-09 254-677-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 TEMPLE TX
2021-09-09 254-677-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 TEMPLE TX
2021-09-09 254-677-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 TEMPLE TX
2021-09-09 254-677-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 TEMPLE TX
2021-09-09 254-727-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 TEMPLE TX
2021-09-09 254-800-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 TEMPLE TX
2021-09-09 254-803-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 MARLIN TX
2021-09-09 254-856-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 MARLIN TX
2021-09-09 254-878-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 WACO TX
2021-09-09 254-878-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 WACO TX
2021-09-09 254-878-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 WACO TX
2021-09-09 254-878-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 WACO TX
2021-09-09 254-878-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 WACO TX
2021-09-09 254-878-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 WACO TX
2021-09-09 254-878-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 WACO TX
2021-09-09 254-878-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 WACO TX
2021-09-09 254-910-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 WACO TX
2021-09-09 254-910-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 WACO TX
2021-09-09 254-922-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 KILLEEN 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.