NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

6 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 936
ONVOY, LLC - TX 3
MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 2
PAETEC ITEL, 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
2012-09-21 936-206-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 CONROE TX
2012-09-21 936-206-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 CONROE TX
2012-09-14 936-252-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 LIVINGSTON TX
2012-08-16 936-730-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HUNTSVILLE TX
2012-08-15 936-666-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F WILLIS TX
2012-08-15 936-931-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F WALLER TX
2012-08-03 936-202-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 CONROE TX
2012-07-26 936-262-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F BATSON TX
2012-07-13 936-202-5XXX 5000–5999Assigned CONSOLIDATED COMMUNICATIONS OF TEXAS COMPANY 2109 CONROE TX
2012-07-02 936-346-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 LIBERTY TX
2012-06-22 936-873-8XXX 8000–8999Assigned ONVOY, LLC - TX 903C ANDERSON TX
2012-06-22 936-874-8XXX 8000–8999Assigned ONVOY, LLC - TX 903C SHIRO TX
2012-06-22 936-878-7XXX 7000–7999Assigned ONVOY, LLC - TX 903C WASHINGTON TX
2012-06-04 936-206-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 7239 CONROE TX
2012-05-22 936-274-8XXX 8000–8999Assigned ONVOY, LLC - TX 903C SARATOGA TX
2012-05-22 936-463-0XXX 0000–0999Assigned ONVOY, LLC - TX 903C WALLER TX
2012-05-22 936-628-5XXX 5000–5999Assigned ONVOY, LLC - TX 903C SHEPHERD TX
2012-05-22 936-666-3XXX 3000–3999Assigned ONVOY, LLC - TX 903C WILLIS TX
2012-05-22 936-715-3XXX 3000–3999Assigned ONVOY, LLC - TX 903C NACOGDOCHS TX
2012-05-18 936-253-4XXX 4000–4999Assigned AERIAL COMMUNICATIONS, INC. 6701 LIBERTY TX
2012-05-18 936-666-5XXX 5000–5999Assigned CSC VOICE, LLC 612K WILLIS TX
2012-04-18 936-202-3XXX 3000–3999Assigned ONVOY, LLC - TX 903C CONROE TX
2012-03-21 936-242-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 CONROE TX
2012-03-20 936-398-3XXX 3000–3999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J CORRIGAN TX
2012-03-13 936-205-9XXX 9000–9999Assigned CSC VOICE, LLC 612K NACOGDOCHS TX
2012-03-13 936-342-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 SARATOGA TX
2012-03-13 936-495-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 BROADDUS TX
2012-03-13 936-909-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 PENNINGTON TX
2012-03-01 936-238-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LUFKIN TX
2012-02-27 936-590-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CENTER TX
2012-02-21 936-241-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MADISONVL TX
2012-02-10 936-900-1XXX 1000–1999Assigned AERIAL COMMUNICATIONS, INC. 6701 CONROE TX
2012-01-30 936-206-5XXX 5000–5999Assigned PEERLESS NETWORK OF TEXAS, LLC - TX 177F CONROE TX
2012-01-25 936-253-1XXX 1000–1999Assigned PEERLESS NETWORK OF TEXAS, LLC - TX 177F LIBERTY TX
2012-01-25 936-449-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 7239 MONTGOMERY TX
2012-01-24 936-570-0XXX 0000–0999Assigned PEERLESS NETWORK OF TEXAS, LLC - TX 177F HUNTINGTON TX
2012-01-13 936-427-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C CENTER TX
2011-12-28 936-536-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F HULL TX
2011-12-23 936-238-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LUFKIN TX
2011-12-23 936-483-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 SHEPHERD TX
2011-12-21 936-439-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HUNTSVILLE TX
2011-12-20 936-587-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F RAYWOOD TX
2011-12-16 936-274-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SARATOGA TX
2011-12-16 936-549-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F DEVERS TX
2011-12-16 936-900-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 CONROE TX
2011-11-30 936-463-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 WALLER TX
2011-11-28 936-483-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SHEPHERD TX
2011-11-14 936-241-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C MADISONVL TX
2011-10-28 936-254-0XXX 0000–0999Assigned AT&T ENTERPRISES, LLC 516C TIMPSON TX
2011-10-28 936-288-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C SANAUGUSTN 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.