NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

11 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 281
ONVOY, LLC - TX 10
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
2014-07-28 281-969-6XXX 6000–6999Assigned METROPCS, INC. 5562 STAFFORD TX
2014-07-14 281-670-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J HSTNSUBURB TX
2014-07-08 281-525-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J LEAGUECITY TX
2014-07-03 281-967-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 DICKINSON TX
2014-07-02 281-898-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 APOLLO TX
2014-06-24 281-982-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J WESTFIELD TX
2014-06-18 281-608-7XXX 7000–7999Assigned CSC VOICE, LLC 612K HUMBLE TX
2014-06-18 281-706-9XXX 9000–9999Assigned CSC VOICE, LLC 612K HUMBLE TX
2014-06-18 281-713-1XXX 1000–1999Assigned CSC VOICE, LLC 612K HUMBLE TX
2014-06-18 281-819-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F FRIENDSWD TX
2014-06-13 281-967-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 DICKINSON TX
2014-06-12 281-747-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F PORTER TX
2014-06-12 281-967-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J DICKINSON TX
2014-06-10 281-957-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J KEMAH TX
2014-06-09 281-771-5XXX 5000–5999Assigned AT&T ENTERPRISES, LLC 516C SPRING TX
2014-05-23 281-503-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 PORTER HTS TX
2014-05-19 281-665-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J KATY TX
2014-05-12 281-223-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 CLEVELAND TX
2014-05-12 281-622-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 CLEVELAND TX
2014-05-12 281-707-6XXX 6000–6999Assigned AERIAL COMMUNICATIONS, INC. 6701 BAYTOWN TX
2014-05-12 281-707-8XXX 8000–8999Assigned AERIAL COMMUNICATIONS, INC. 6701 BAYTOWN TX
2014-05-12 281-707-9XXX 9000–9999Assigned AERIAL COMMUNICATIONS, INC. 6701 BAYTOWN TX
2014-05-06 281-786-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 APOLLO TX
2014-04-21 281-786-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J APOLLO TX
2014-04-14 281-223-2XXX 2000–2999Assigned AERIAL COMMUNICATIONS, INC. 6701 CLEVELAND TX
2014-04-14 281-223-3XXX 3000–3999Assigned AERIAL COMMUNICATIONS, INC. 6701 CLEVELAND TX
2014-04-14 281-643-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F MANVEL TX
2014-04-14 281-713-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F HUMBLE TX
2014-04-14 281-942-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SEABROOK TX
2014-04-14 281-972-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F ARCOLA TX
2014-04-14 281-972-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F ARCOLA TX
2014-04-11 281-783-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SHELDON TX
2014-04-01 281-601-8XXX 8000–8999Assigned CSC VOICE, LLC 612K PORTER TX
2014-03-25 281-525-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J LEAGUECITY TX
2014-03-25 281-525-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J LEAGUECITY TX
2014-03-19 281-906-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 HOUSTON TX
2014-03-19 281-906-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 HOUSTON TX
2014-03-19 281-906-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 HOUSTON TX
2014-03-19 281-906-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 HOUSTON TX
2014-03-19 281-906-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 HOUSTON TX
2014-03-19 281-906-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 HOUSTON TX
2014-03-12 281-344-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F RICHMNRNBG TX
2014-03-12 281-393-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F LIVERPOOL TX
2014-02-26 281-967-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 DICKINSON TX
2014-02-26 281-967-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 DICKINSON TX
2014-02-24 281-383-0XXX 0000–0999Assigned METROPCS, INC. 5562 BEACH CITY TX
2014-02-24 281-573-7XXX 7000–7999Assigned METROPCS, INC. 5562 BEACH CITY TX
2014-02-24 281-916-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 KEMAH TX
2014-02-17 281-906-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 HOUSTON TX
2014-02-17 281-906-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 HOUSTON 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.