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
2013-03-29 817-497-8XXX 8000–8999Assigned PEERLESS NETWORK OF TEXAS, LLC - TX 177F ROANOKE TX
2013-03-29 817-523-6XXX 6000–6999Assigned PEERLESS NETWORK OF TEXAS, LLC - TX 177F SPRINGTOWN TX
2013-03-29 817-668-3XXX 3000–3999Assigned PEERLESS NETWORK OF TEXAS, LLC - TX 177F SPRINGTOWN TX
2013-03-29 817-677-6XXX 6000–6999Assigned PEERLESS NETWORK OF TEXAS, LLC - TX 177F RENO TX
2013-03-29 817-754-9XXX 9000–9999Assigned PEERLESS NETWORK OF TEXAS, LLC - TX 177F RENO TX
2013-03-28 817-268-9XXX 9000–9999Assigned PEERLESS NETWORK OF TEXAS, LLC - TX 177F EULESS TX
2013-03-28 817-380-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F KELLER TX
2013-03-28 817-406-0XXX 0000–0999Assigned PEERLESS NETWORK OF TEXAS, LLC - TX 177F AZLE TX
2013-03-28 817-406-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F AZLE TX
2013-03-28 817-406-9XXX 9000–9999Assigned PEERLESS NETWORK OF TEXAS, LLC - TX 177F AZLE TX
2013-03-28 817-435-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F MANSFIELD TX
2013-03-28 817-476-8XXX 8000–8999Assigned PEERLESS NETWORK OF TEXAS, LLC - TX 177F KENNEDALE TX
2013-03-28 817-476-9XXX 9000–9999Assigned PEERLESS NETWORK OF TEXAS, LLC - TX 177F KENNEDALE TX
2013-03-28 817-518-9XXX 9000–9999Assigned PEERLESS NETWORK OF TEXAS, LLC - TX 177F KELLER TX
2013-03-28 817-527-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F GRAPEVINE TX
2013-03-28 817-554-1XXX 1000–1999Assigned PEERLESS NETWORK OF TEXAS, LLC - TX 177F EULESS TX
2013-03-28 817-562-9XXX 9000–9999Assigned PEERLESS NETWORK OF TEXAS, LLC - TX 177F KELLER TX
2013-03-28 817-601-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F GRAPEVINE TX
2013-03-28 817-666-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F CLEBURNE TX
2013-03-26 817-837-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7148 ROANOKE TX
2013-03-22 817-752-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7148 AZLE TX
2013-03-20 817-761-5XXX 5000–5999Assigned PEERLESS NETWORK OF TEXAS, LLC - TX 177F ALVARADO TX
2013-03-20 817-761-6XXX 6000–6999Assigned PEERLESS NETWORK OF TEXAS, LLC - TX 177F ALVARADO TX
2013-03-19 817-367-9XXX 9000–9999Assigned CHARTER IP ENABLED SERVICES, LLC 792K FORT WORTH TX
2013-03-19 817-502-1XXX 1000–1999Assigned PAETEC ITEL, LLC 829J FORT WORTH TX
2013-03-18 817-609-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 WEATHERFD TX
2013-03-04 817-609-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F WEATHERFD TX
2013-02-28 817-382-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SPRINGTOWN TX
2013-02-28 817-474-0XXX 0000–0999Assigned SOUTHWESTERN BELL 9533 ROANOKE TX
2013-02-28 817-523-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SPRINGTOWN TX
2013-02-28 817-523-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SPRINGTOWN TX
2013-02-28 817-668-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SPRINGTOWN TX
2013-02-26 817-413-1XXX 1000–1999Assigned PAETEC ITEL, LLC 829J FORT WORTH TX
2013-02-19 817-882-6XXX 6000–6999Assigned CHARTER IP ENABLED SERVICES, LLC 792K FORT WORTH TX
2013-02-15 817-725-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F RENO TX
2013-02-15 817-725-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F RENO TX
2013-02-15 817-754-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F RENO TX
2013-02-15 817-754-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F RENO TX
2013-02-15 817-754-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F RENO TX
2013-02-11 817-609-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WEATHERFD TX
2013-02-07 817-900-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F FORT WORTH TX
2013-02-07 817-900-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F FORT WORTH TX
2013-02-07 817-900-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F FORT WORTH TX
2013-02-07 817-916-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F FORT WORTH TX
2013-02-07 817-935-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F FORT WORTH TX
2013-02-07 817-935-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F FORT WORTH TX
2013-02-07 817-989-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F FORT WORTH TX
2013-02-05 817-873-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J GRAPEVINE TX
2013-01-16 817-609-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 WEATHERFD TX
2013-01-16 817-609-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 WEATHERFD 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.