NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

3 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 817
ONVOY, LLC - TX 2
EXIANT COMMUNICATIONS LLC 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
2024-03-11 817-769-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H FORT WORTH TX
2024-03-01 817-855-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ARLINGTON TX
2024-03-01 817-855-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ARLINGTON TX
2024-03-01 817-855-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ARLINGTON TX
2024-03-01 817-936-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ARLINGTON TX
2024-02-26 817-662-8XXX 8000–8999Assigned FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 0701 EULESS TX
2024-01-26 817-660-6XXX 6000–6999Assigned ONVOY, LLC - TX 903C FORT WORTH TX
2024-01-26 817-660-7XXX 7000–7999Assigned ONVOY, LLC - TX 903C FORT WORTH TX
2024-01-17 817-215-3XXX 3000–3999Assigned TERRA NOVA TELECOM INC. 145J FORT WORTH TX
2024-01-08 817-427-5XXX 5000–5999Assigned TERRA NOVA TELECOM INC. 145J NRICHLDHLS TX
2023-12-21 817-990-0XXX 0000–0999Assigned COMMIO, LLC 939H EULESS TX
2023-12-21 817-990-1XXX 1000–1999Assigned COMMIO, LLC 939H EULESS TX
2023-12-21 817-990-2XXX 2000–2999Assigned COMMIO, LLC 939H EULESS TX
2023-12-21 817-990-3XXX 3000–3999Assigned COMMIO, LLC 939H EULESS TX
2023-12-21 817-990-4XXX 4000–4999Assigned COMMIO, LLC 939H EULESS TX
2023-12-21 817-990-5XXX 5000–5999Assigned COMMIO, LLC 939H EULESS TX
2023-12-21 817-990-6XXX 6000–6999Assigned COMMIO, LLC 939H EULESS TX
2023-12-21 817-990-7XXX 7000–7999Assigned COMMIO, LLC 939H EULESS TX
2023-12-21 817-990-8XXX 8000–8999Assigned COMMIO, LLC 939H EULESS TX
2023-12-21 817-990-9XXX 9000–9999Assigned COMMIO, LLC 939H EULESS TX
2023-12-20 817-660-0XXX 0000–0999Assigned COMMIO, LLC 939H FORT WORTH TX
2023-12-20 817-660-1XXX 1000–1999Assigned COMMIO, LLC 939H FORT WORTH TX
2023-12-20 817-660-2XXX 2000–2999Assigned COMMIO, LLC 939H FORT WORTH TX
2023-12-20 817-660-3XXX 3000–3999Assigned COMMIO, LLC 939H FORT WORTH TX
2023-12-20 817-660-4XXX 4000–4999Assigned COMMIO, LLC 939H FORT WORTH TX
2023-12-20 817-660-5XXX 5000–5999Assigned COMMIO, LLC 939H FORT WORTH TX
2023-12-20 817-951-0XXX 0000–0999Assigned COMMIO, LLC 939H KELLER TX
2023-12-20 817-951-1XXX 1000–1999Assigned COMMIO, LLC 939H KELLER TX
2023-12-20 817-951-2XXX 2000–2999Assigned COMMIO, LLC 939H KELLER TX
2023-12-20 817-951-3XXX 3000–3999Assigned COMMIO, LLC 939H KELLER TX
2023-12-20 817-951-4XXX 4000–4999Assigned COMMIO, LLC 939H KELLER TX
2023-12-20 817-951-5XXX 5000–5999Assigned COMMIO, LLC 939H KELLER TX
2023-12-20 817-951-6XXX 6000–6999Assigned COMMIO, LLC 939H KELLER TX
2023-12-20 817-951-7XXX 7000–7999Assigned COMMIO, LLC 939H KELLER TX
2023-12-20 817-954-0XXX 0000–0999Assigned COMMIO, LLC 939H GRAPEVINE TX
2023-12-20 817-954-1XXX 1000–1999Assigned COMMIO, LLC 939H GRAPEVINE TX
2023-12-20 817-954-2XXX 2000–2999Assigned COMMIO, LLC 939H GRAPEVINE TX
2023-12-20 817-954-3XXX 3000–3999Assigned COMMIO, LLC 939H GRAPEVINE TX
2023-12-20 817-954-4XXX 4000–4999Assigned COMMIO, LLC 939H GRAPEVINE TX
2023-12-20 817-954-5XXX 5000–5999Assigned COMMIO, LLC 939H GRAPEVINE TX
2023-12-20 817-954-6XXX 6000–6999Assigned COMMIO, LLC 939H GRAPEVINE TX
2023-12-20 817-954-7XXX 7000–7999Assigned COMMIO, LLC 939H GRAPEVINE TX
2023-11-02 817-623-7XXX 7000–7999Assigned NUSO, LLC 478J KELLER TX
2023-10-31 817-940-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 ARLINGTON TX
2023-10-31 817-940-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 ARLINGTON TX
2023-10-31 817-940-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 ARLINGTON TX
2023-10-31 817-940-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 ARLINGTON TX
2023-10-31 817-940-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 ARLINGTON TX
2023-10-31 817-940-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 ARLINGTON TX
2023-10-31 817-940-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 ARLINGTON TX

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.