NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

3 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 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
2008-03-03 817-576-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 NRICHLDHLS TX
2008-03-03 817-774-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 CLEBURNE TX
2008-02-29 817-659-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CLEBURNE TX
2008-02-27 817-888-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GLENDALE TX
2008-02-26 817-380-7XXX 7000–7999Assigned LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 7516 KELLER TX
2008-02-25 817-341-6XXX 6000–6999Assigned CHARTER IP ENABLED SERVICES, LLC 792K WEATHERFD TX
2008-02-25 817-888-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GLENDALE TX
2008-02-25 817-888-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GLENDALE TX
2008-02-21 817-774-2XXX 2000–2999Assigned CHARTER IP ENABLED SERVICES, LLC 792K CLEBURNE TX
2008-02-08 817-210-9XXX 9000–9999Assigned METROPCS, INC. 5562 FORT WORTH TX
2008-02-08 817-349-1XXX 1000–1999Assigned METROPCS, INC. 5562 FORT WORTH TX
2008-02-08 817-443-1XXX 1000–1999Assigned METROPCS, INC. 5562 FORT WORTH TX
2008-02-08 817-448-1XXX 1000–1999Assigned METROPCS, INC. 5562 FORT WORTH TX
2008-02-08 817-495-1XXX 1000–1999Assigned METROPCS, INC. 5562 FORT WORTH TX
2008-02-08 817-615-0XXX 0000–0999Assigned METROPCS, INC. 5562 FORT WORTH TX
2008-02-08 817-806-6XXX 6000–6999Assigned METROPCS, INC. 5562 FORT WORTH TX
2008-02-08 817-806-7XXX 7000–7999Assigned METROPCS, INC. 5562 FORT WORTH TX
2008-02-08 817-806-8XXX 8000–8999Assigned METROPCS, INC. 5562 FORT WORTH TX
2008-02-08 817-885-9XXX 9000–9999Assigned METROPCS, INC. 5562 FORT WORTH TX
2008-02-06 817-744-7XXX 7000–7999Assigned CHARTER IP ENABLED SERVICES, LLC 792K FORT WORTH TX
2008-01-28 817-204-4XXX 4000–4999Assigned METROPCS, INC. 5562 FORT WORTH TX
2008-01-28 817-204-7XXX 7000–7999Assigned METROPCS, INC. 5562 FORT WORTH TX
2008-01-28 817-210-2XXX 2000–2999Assigned METROPCS, INC. 5562 FORT WORTH TX
2008-01-28 817-210-5XXX 5000–5999Assigned METROPCS, INC. 5562 FORT WORTH TX
2008-01-28 817-210-8XXX 8000–8999Assigned METROPCS, INC. 5562 FORT WORTH TX
2008-01-28 817-350-1XXX 1000–1999Assigned METROPCS, INC. 5562 FORT WORTH TX
2008-01-28 817-350-7XXX 7000–7999Assigned METROPCS, INC. 5562 FORT WORTH TX
2008-01-28 817-353-1XXX 1000–1999Assigned METROPCS, INC. 5562 FORT WORTH TX
2008-01-28 817-353-3XXX 3000–3999Assigned METROPCS, INC. 5562 FORT WORTH TX
2008-01-28 817-353-5XXX 5000–5999Assigned METROPCS, INC. 5562 FORT WORTH TX
2008-01-23 817-539-2XXX 2000–2999Assigned SOUTHWESTERN BELL 9533 MANSFIELD TX
2008-01-17 817-600-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 ARLINGTON TX
2008-01-17 817-600-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 ARLINGTON TX
2008-01-17 817-600-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 ARLINGTON TX
2008-01-17 817-600-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 ARLINGTON TX
2008-01-17 817-600-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 ARLINGTON TX
2008-01-17 817-710-1XXX 1000–1999Assigned ONVOY, LLC - TX 903C FORT WORTH TX
2008-01-17 817-710-2XXX 2000–2999Assigned ONVOY, LLC - TX 903C FORT WORTH TX
2008-01-10 817-471-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 ARLINGTON TX
2008-01-10 817-471-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 ARLINGTON TX
2008-01-10 817-471-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 ARLINGTON TX
2008-01-10 817-471-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 ARLINGTON TX
2008-01-04 817-458-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WEATHERFD TX
2008-01-04 817-550-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WEATHERFD TX
2008-01-04 817-682-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GLENDALE TX
2008-01-04 817-682-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GLENDALE TX
2008-01-04 817-682-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GLENDALE TX
2007-12-12 817-704-6XXX 6000–6999Assigned ONVOY, LLC - TX 903C ARLINGTON TX
2007-12-12 817-704-7XXX 7000–7999Assigned ONVOY, LLC - TX 903C ARLINGTON TX
2007-11-28 817-600-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 ARLINGTON 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.