NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

17 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 361
ONVOY, LLC - TX 14
TELEPORT COMMUNICATIONS AMERICA, LLC - TX 1
AHOI LLC 1
8X8, INC. 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
2012-06-13 361-210-3XXX 3000–3999Assigned ONVOY, LLC - TX 903C CUERO TX
2012-06-13 361-420-3XXX 3000–3999Assigned ONVOY, LLC - TX 903C CLARKWOOD TX
2012-06-13 361-596-8XXX 8000–8999Assigned ONVOY, LLC - TX 903C MOULTON TX
2012-06-13 361-704-8XXX 8000–8999Assigned ONVOY, LLC - TX 903C PORTLDGGRY TX
2012-06-13 361-867-3XXX 3000–3999Assigned ONVOY, LLC - TX 903C PADRE IS TX
2012-05-17 361-492-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F GEORGEWEST TX
2012-05-17 361-661-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ALICE TX
2012-05-01 361-579-7XXX 7000–7999Assigned CSC VOICE, LLC 612K VICTORIA TX
2012-04-19 361-646-4XXX 4000–4999Assigned FOREMOST TELECOMMUNICATIONS CORPORATION - TX 319D REFUGIO TX
2012-04-12 361-227-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ALICE TX
2012-03-21 361-998-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F AGUA DULCE TX
2012-03-20 361-238-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F INGLESIDE TX
2012-03-20 361-343-8XXX 8000–8999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J BEEVILLE TX
2012-03-20 361-450-4XXX 4000–4999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J ROCKPORT TX
2012-03-20 361-453-3XXX 3000–3999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J ALICE TX
2012-03-20 361-543-2XXX 2000–2999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J WOODSBORO TX
2012-03-20 361-683-3XXX 3000–3999Assigned U.S. TELEPACIFIC CORP. DBA TPX COMMUNICATIONS 671J MATHIS TX
2012-03-12 361-247-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F BAYSIDE TX
2012-03-07 361-221-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 KINGSVILLE TX
2012-03-01 361-489-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 VICTORIA TX
2012-02-28 361-450-0XXX 0000–0999Assigned TWC IP ENABLED SERVICES, LLC 793K ROCKPORT TX
2012-02-28 361-587-3XXX 3000–3999Assigned TWC IP ENABLED SERVICES, LLC 793K SINTON TX
2012-02-28 361-704-6XXX 6000–6999Assigned TWC IP ENABLED SERVICES, LLC 793K PORTLDGGRY TX
2012-02-21 361-371-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F C CHRISTI TX
2012-02-16 361-401-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SHINER TX
2012-01-20 361-792-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 C CHRISTI TX
2012-01-19 361-431-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 FLOURBLUFF TX
2012-01-13 361-256-8XXX 8000–8999Assigned AT&T ENTERPRISES, LLC 516C BENAVIDES TX
2012-01-12 361-214-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F YORKTOWN TX
2012-01-11 361-287-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SKIDMORE TX
2012-01-10 361-233-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F NORDHEIM TX
2011-12-30 361-214-4XXX 4000–4999Assigned FOREMOST TELECOMMUNICATIONS CORPORATION - TX 319D YORKTOWN TX
2011-12-30 361-277-7XXX 7000–7999Assigned FOREMOST TELECOMMUNICATIONS CORPORATION - TX 319D CUERO TX
2011-12-30 361-938-4XXX 4000–4999Assigned FOREMOST TELECOMMUNICATIONS CORPORATION - TX 319D NORDHEIM TX
2011-12-28 361-534-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F TAFT TX
2011-12-08 361-222-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TAFT TX
2011-12-07 361-667-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F FALFURRIAS TX
2011-11-28 361-217-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F HALLETTSVL TX
2011-11-14 361-210-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C CUERO TX
2011-11-09 361-459-5XXX 5000–5999Assigned FOREMOST TELECOMMUNICATIONS CORPORATION - TX 319D BISHOP TX
2011-11-09 361-528-7XXX 7000–7999Assigned FOREMOST TELECOMMUNICATIONS CORPORATION - TX 319D TAFT TX
2011-11-09 361-738-3XXX 3000–3999Assigned FOREMOST TELECOMMUNICATIONS CORPORATION - TX 319D ODEM TX
2011-11-09 361-752-5XXX 5000–5999Assigned FOREMOST TELECOMMUNICATIONS CORPORATION - TX 319D ROBSTOWN TX
2011-11-09 361-775-6XXX 6000–6999Assigned FOREMOST TELECOMMUNICATIONS CORPORATION - TX 319D INGLESIDE TX
2011-11-09 361-897-7XXX 7000–7999Assigned FOREMOST TELECOMMUNICATIONS CORPORATION - TX 319D BLOOMINGTN TX
2011-11-09 361-998-6XXX 6000–6999Assigned FOREMOST TELECOMMUNICATIONS CORPORATION - TX 319D AGUA DULCE TX
2011-11-02 361-371-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 C CHRISTI TX
2011-10-28 361-209-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C SAN DIEGO TX
2011-10-28 361-255-6XXX 6000–6999Assigned AT&T ENTERPRISES, LLC 516C MATHIS TX
2011-10-28 361-308-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C EDNA 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.