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
2012-10-15 281-985-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F HSTNSUBURB TX
2012-10-11 281-397-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 BAMMEL TX
2012-10-05 281-339-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J KEMAH TX
2012-10-02 281-512-0XXX 0000–0999Assigned METROPCS, INC. 5562 HSTNSUBURB TX
2012-10-02 281-512-1XXX 1000–1999Assigned METROPCS, INC. 5562 HSTNSUBURB TX
2012-10-02 281-512-2XXX 2000–2999Assigned METROPCS, INC. 5562 HSTNSUBURB TX
2012-10-02 281-512-3XXX 3000–3999Assigned METROPCS, INC. 5562 HSTNSUBURB TX
2012-10-02 281-512-4XXX 4000–4999Assigned METROPCS, INC. 5562 HSTNSUBURB TX
2012-10-02 281-512-5XXX 5000–5999Assigned METROPCS, INC. 5562 HSTNSUBURB TX
2012-10-02 281-512-6XXX 6000–6999Assigned METROPCS, INC. 5562 HSTNSUBURB TX
2012-10-02 281-512-7XXX 7000–7999Assigned METROPCS, INC. 5562 HSTNSUBURB TX
2012-10-02 281-512-8XXX 8000–8999Assigned METROPCS, INC. 5562 HSTNSUBURB TX
2012-10-02 281-512-9XXX 9000–9999Assigned AERIAL COMMUNICATIONS, INC. 6701 HSTNSUBURB TX
2012-09-28 281-675-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F BARKER TX
2012-09-28 281-994-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F BARKER TX
2012-09-27 281-315-0XXX 0000–0999Assigned AERIAL COMMUNICATIONS, INC. 6701 BAMMEL TX
2012-09-27 281-315-4XXX 4000–4999Assigned AERIAL COMMUNICATIONS, INC. 6701 BAMMEL TX
2012-09-27 281-315-6XXX 6000–6999Assigned AERIAL COMMUNICATIONS, INC. 6701 BAMMEL TX
2012-09-27 281-986-0XXX 0000–0999Assigned AERIAL COMMUNICATIONS, INC. 6701 HSTNSUBURB TX
2012-09-27 281-986-7XXX 7000–7999Assigned AERIAL COMMUNICATIONS, INC. 6701 HSTNSUBURB TX
2012-09-27 281-986-9XXX 9000–9999Assigned AERIAL COMMUNICATIONS, INC. 6701 HSTNSUBURB TX
2012-09-27 281-987-4XXX 4000–4999Assigned AERIAL COMMUNICATIONS, INC. 6701 HSTNSUBURB TX
2012-09-27 281-987-5XXX 5000–5999Assigned AERIAL COMMUNICATIONS, INC. 6701 HSTNSUBURB TX
2012-09-20 281-371-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 KATY TX
2012-09-14 281-533-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J VLY LODGE TX
2012-09-11 281-665-1XXX 1000–1999Assigned CONSOLIDATED COMMUNICATIONS OF TEXAS COMPANY 2109 KATY TX
2012-09-10 281-915-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J ARCOLA TX
2012-08-29 281-394-9XXX 9000–9999Assigned ETS TELEPHONE COMPANY, INC. 2091 KATY TX
2012-08-23 281-205-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 TOMBALL TX
2012-08-21 281-624-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J BAMMEL TX
2012-08-21 281-888-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F HOUSTON TX
2012-08-15 281-607-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F MANVEL TX
2012-08-15 281-694-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SEABROOK TX
2012-07-20 281-751-2XXX 2000–2999Assigned LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 7074 MONTBLVIEU TX
2012-07-20 281-972-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F ARCOLA TX
2012-07-18 281-869-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F WESTFIELD TX
2012-07-18 281-947-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F FRIENDSWD TX
2012-07-17 281-215-4XXX 4000–4999Assigned PAETEC ITEL, LLC 829J SHELDON TX
2012-07-13 281-724-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 LEAGUECITY TX
2012-06-21 281-769-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 KATY TX
2012-05-22 281-533-8XXX 8000–8999Assigned ONVOY, LLC - TX 903C VLY LODGE TX
2012-05-22 281-607-4XXX 4000–4999Assigned ONVOY, LLC - TX 903C MANVEL TX
2012-05-22 281-783-3XXX 3000–3999Assigned ONVOY, LLC - TX 903C SHELDON TX
2012-05-22 281-819-5XXX 5000–5999Assigned ONVOY, LLC - TX 903C FRIENDSWD TX
2012-05-22 281-884-3XXX 3000–3999Assigned ONVOY, LLC - TX 903C DEER PARK TX
2012-05-22 281-942-6XXX 6000–6999Assigned ONVOY, LLC - TX 903C SEABROOK TX
2012-05-03 281-396-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J KATY TX
2012-04-17 281-944-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F BARKER TX
2012-04-16 281-254-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 HOUSTON TX
2012-04-16 281-254-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 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.