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
2010-08-26 817-659-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 CLEBURNE TX
2010-08-26 817-983-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 ARLINGTON TX
2010-08-26 817-983-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 ARLINGTON TX
2010-08-25 817-576-4XXX 4000–4999Assigned AT&T ENTERPRISES, LLC 516C NRICHLDHLS TX
2010-08-17 817-764-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 FORT WORTH TX
2010-08-17 817-764-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 FORT WORTH TX
2010-07-27 817-760-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 CLEBURNE TX
2010-07-27 817-760-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 CLEBURNE TX
2010-07-26 817-666-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K CLEBURNE TX
2010-07-20 817-659-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CLEBURNE TX
2010-07-16 817-381-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F RENO TX
2010-07-16 817-381-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F RENO TX
2010-07-16 817-382-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SPRINGTOWN TX
2010-07-16 817-382-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SPRINGTOWN TX
2010-07-14 817-823-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 ARLINGTON TX
2010-07-14 817-823-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 ARLINGTON TX
2010-07-14 817-823-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 ARLINGTON TX
2010-07-13 817-682-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GLENDALE TX
2010-07-13 817-682-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GLENDALE TX
2010-07-13 817-682-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GLENDALE TX
2010-07-01 817-888-3XXX 3000–3999Assigned CHARTER IP ENABLED SERVICES, LLC 792K GLENDALE TX
2010-06-29 817-682-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GLENDALE TX
2010-06-29 817-682-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GLENDALE TX
2010-06-29 817-682-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 GLENDALE TX
2010-06-23 817-901-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 WEATHERFD TX
2010-06-18 817-585-1XXX 1000–1999Assigned CHARTER IP ENABLED SERVICES, LLC 792K FORT WORTH TX
2010-05-28 817-203-2XXX 2000–2999Assigned ONVOY, LLC - TX 903C GRAPEVINE TX
2010-05-28 817-241-2XXX 2000–2999Assigned ONVOY, LLC - TX 903C CRESSON TX
2010-05-28 817-242-2XXX 2000–2999Assigned ONVOY, LLC - TX 903C GODLEY TX
2010-05-28 817-330-6XXX 6000–6999Assigned ONVOY, LLC - TX 903C KENNEDALE TX
2010-05-28 817-369-3XXX 3000–3999Assigned ONVOY, LLC - TX 903C NRICHLDHLS TX
2010-05-28 817-373-5XXX 5000–5999Assigned ONVOY, LLC - TX 903C RIO VISTA TX
2010-05-28 817-382-3XXX 3000–3999Assigned ONVOY, LLC - TX 903C SPRINGTOWN TX
2010-05-28 817-383-2XXX 2000–2999Assigned ONVOY, LLC - TX 903C RHOME TX
2010-05-28 817-402-2XXX 2000–2999Assigned ONVOY, LLC - TX 903C ALVARADO TX
2010-05-28 817-406-3XXX 3000–3999Assigned ONVOY, LLC - TX 903C AZLE TX
2010-05-28 817-435-4XXX 4000–4999Assigned ONVOY, LLC - TX 903C MANSFIELD TX
2010-05-28 817-438-2XXX 2000–2999Assigned ONVOY, LLC - TX 903C EULESS TX
2010-05-28 817-440-3XXX 3000–3999Assigned ONVOY, LLC - TX 903C ATLAS TX
2010-05-28 817-567-2XXX 2000–2999Assigned ONVOY, LLC - TX 903C ROANOKE TX
2010-05-28 817-583-8XXX 8000–8999Assigned ONVOY, LLC - TX 903C ARLINGTON TX
2010-05-28 817-631-2XXX 2000–2999Assigned ONVOY, LLC - TX 903C RENO TX
2010-05-28 817-697-2XXX 2000–2999Assigned ONVOY, LLC - TX 903C KELLER TX
2010-05-28 817-760-2XXX 2000–2999Assigned ONVOY, LLC - TX 903C CLEBURNE TX
2010-05-28 817-866-6XXX 6000–6999Assigned ONVOY, LLC - TX 903C GRANDVIEW TX
2010-05-28 817-904-2XXX 2000–2999Assigned ONVOY, LLC - TX 903C ACTON TX
2010-05-27 817-203-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F GRAPEVINE TX
2010-05-27 817-380-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F KELLER TX
2010-05-27 817-406-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F AZLE TX
2010-05-27 817-438-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F EULESS 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.