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
2010-05-27 817-438-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F EULESS TX
2010-05-27 817-440-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F ATLAS TX
2010-05-27 817-618-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F KENNEDALE TX
2010-05-27 817-674-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F ROANOKE TX
2010-05-17 817-546-5XXX 5000–5999Assigned ONVOY, LLC - TX 903C FORT WORTH TX
2010-05-11 817-880-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 GLENDALE TX
2010-05-07 817-901-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WEATHERFD TX
2010-04-23 817-405-8XXX 8000–8999Assigned METROPCS, INC. 5562 MANSFIELD TX
2010-04-20 817-751-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 ARLINGTON TX
2010-04-20 817-876-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 ARLINGTON TX
2010-04-20 817-876-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 ARLINGTON TX
2010-04-20 817-876-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 ARLINGTON TX
2010-04-12 817-583-6XXX 6000–6999Assigned AT&T ENTERPRISES, LLC 516C ARLINGTON TX
2010-03-31 817-438-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F EULESS TX
2010-03-23 817-840-3XXX 3000–3999Assigned PAETEC ITEL, LLC 829J FORT WORTH TX
2010-03-23 817-876-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 ARLINGTON TX
2010-03-17 817-760-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 CLEBURNE TX
2010-03-15 817-760-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CLEBURNE TX
2010-03-09 817-262-5XXX 5000–5999Assigned ONVOY, LLC - TX 903C ARLINGTON TX
2010-03-09 817-856-0XXX 0000–0999Assigned ONVOY, LLC - TX 903C ARLINGTON TX
2010-03-04 817-592-3XXX 3000–3999Assigned AT&T ENTERPRISES, LLC 516C MANSFIELD TX
2010-03-02 817-961-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 ROANOKE TX
2010-02-24 817-494-8XXX 8000–8999Assigned AT&T ENTERPRISES, LLC 516C EULESS TX
2010-02-18 817-901-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WEATHERFD TX
2010-02-11 817-330-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F KENNEDALE TX
2010-02-11 817-405-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F MANSFIELD TX
2010-02-11 817-567-4XXX 4000–4999Assigned ONVOY, LLC - TX 903C ROANOKE TX
2010-02-11 817-567-5XXX 5000–5999Assigned ONVOY, LLC - TX 903C ROANOKE TX
2010-02-04 817-350-8XXX 8000–8999Assigned METROPCS, INC. 5562 FORT WORTH TX
2010-02-04 817-350-9XXX 9000–9999Assigned METROPCS, INC. 5562 FORT WORTH TX
2010-02-04 817-367-8XXX 8000–8999Assigned METROPCS, INC. 5562 FORT WORTH TX
2010-02-04 817-390-0XXX 0000–0999Assigned METROPCS, INC. 5562 FORT WORTH TX
2010-02-04 817-396-1XXX 1000–1999Assigned TEXAS WINDSTREAM, LLC 2153 CRESSON TX
2010-02-04 817-441-0XXX 0000–0999Assigned METROPCS, INC. 5562 FORT WORTH TX
2010-02-04 817-441-3XXX 3000–3999Assigned METROPCS, INC. 5562 FORT WORTH TX
2010-02-04 817-762-0XXX 0000–0999Assigned METROPCS, INC. 5562 FORT WORTH TX
2010-02-04 817-852-5XXX 5000–5999Assigned METROPCS, INC. 5562 FORT WORTH TX
2010-01-28 817-381-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F RENO TX
2010-01-28 817-382-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SPRINGTOWN TX
2010-01-27 817-264-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F ARLINGTON TX
2010-01-27 817-264-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F ARLINGTON TX
2010-01-27 817-601-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F GRAPEVINE TX
2010-01-22 817-901-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 WEATHERFD TX
2010-01-22 817-901-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 WEATHERFD TX
2010-01-22 817-901-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 WEATHERFD TX
2010-01-22 817-901-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 WEATHERFD TX
2010-01-20 817-477-7XXX 7000–7999Assigned METROPCS, INC. 5562 MANSFIELD TX
2010-01-12 817-402-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7148 ALVARADO TX
2010-01-12 817-863-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ARLINGTON TX
2010-01-12 817-863-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 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.