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
2019-12-09 281-801-6XXX 6000–6999Assigned ONVOY, LLC - TX 903C SPRING TX
2019-12-09 281-801-7XXX 7000–7999Assigned ONVOY, LLC - TX 903C SPRING TX
2019-12-09 281-801-8XXX 8000–8999Assigned ONVOY, LLC - TX 903C SPRING TX
2019-12-02 281-861-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LANGHAMCRK TX
2019-11-11 281-688-6XXX 6000–6999Assigned ONVOY, LLC - TX 903C HIGHLANDS TX
2019-11-11 281-688-8XXX 8000–8999Assigned ONVOY, LLC - TX 903C HIGHLANDS TX
2019-11-11 281-916-8XXX 8000–8999Assigned ONVOY, LLC - TX 903C KEMAH TX
2019-11-11 281-957-6XXX 6000–6999Assigned ONVOY, LLC - TX 903C KEMAH TX
2019-11-11 281-957-8XXX 8000–8999Assigned ONVOY, LLC - TX 903C KEMAH TX
2019-11-08 281-934-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J BROOKSHIRE TX
2019-10-24 281-688-5XXX 5000–5999Assigned PEERLESS NETWORK OF TEXAS, LLC - TX 177F HIGHLANDS TX
2019-10-16 281-559-6XXX 6000–6999Assigned ONVOY, LLC - TX 903C KEMAH TX
2019-10-16 281-559-7XXX 7000–7999Assigned ONVOY, LLC - TX 903C KEMAH TX
2019-10-16 281-916-3XXX 3000–3999Assigned ONVOY, LLC - TX 903C KEMAH TX
2019-10-16 281-916-4XXX 4000–4999Assigned ONVOY, LLC - TX 903C KEMAH TX
2019-10-02 281-502-4XXX 4000–4999Assigned PEERLESS NETWORK OF TEXAS, LLC - TX 177F HIGHLANDS TX
2019-10-01 281-562-9XXX 9000–9999Assigned AERIAL COMMUNICATIONS, INC. 6701 BAMMEL TX
2019-10-01 281-654-5XXX 5000–5999Assigned AERIAL COMMUNICATIONS, INC. 6701 BAMMEL TX
2019-10-01 281-654-6XXX 6000–6999Assigned AERIAL COMMUNICATIONS, INC. 6701 BAMMEL TX
2019-09-25 281-729-4XXX 4000–4999Assigned ONVOY, LLC - TX 903C DICKINSON TX
2019-09-25 281-729-5XXX 5000–5999Assigned ONVOY, LLC - TX 903C DICKINSON TX
2019-09-25 281-729-6XXX 6000–6999Assigned ONVOY, LLC - TX 903C DICKINSON TX
2019-09-24 281-505-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J KATY TX
2019-09-06 281-529-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 HSTNSUBURB TX
2019-09-03 281-654-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 BAMMEL TX
2019-09-03 281-654-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 BAMMEL TX
2019-08-21 281-505-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KATY TX
2019-08-13 281-562-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BAMMEL TX
2019-08-13 281-562-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BAMMEL TX
2019-07-25 281-375-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 BROOKSHIRE TX
2019-07-12 281-729-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 DICKINSON TX
2019-06-27 281-729-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 DICKINSON TX
2019-06-27 281-729-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 DICKINSON TX
2019-06-26 281-676-7XXX 7000–7999Assigned METROPCS, INC. 5562 BARKER TX
2019-06-26 281-720-9XXX 9000–9999Assigned METROPCS, INC. 5562 SATSUMA TX
2019-06-13 281-336-8XXX 8000–8999Assigned ONVOY, LLC - TX 903C KEMAH TX
2019-06-13 281-336-9XXX 9000–9999Assigned ONVOY, LLC - TX 903C KEMAH TX
2019-06-13 281-595-1XXX 1000–1999Assigned ONVOY, LLC - TX 903C ROSHARON TX
2019-06-13 281-595-9XXX 9000–9999Assigned ONVOY, LLC - TX 903C ROSHARON TX
2019-06-13 281-729-8XXX 8000–8999Assigned ONVOY, LLC - TX 903C DICKINSON TX
2019-06-13 281-729-9XXX 9000–9999Assigned ONVOY, LLC - TX 903C DICKINSON TX
2019-04-30 281-729-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J DICKINSON TX
2019-04-29 281-326-6XXX 6000–6999Assigned TELNYX LLC 073H KEMAH TX
2019-04-29 281-867-5XXX 5000–5999Assigned PEERLESS NETWORK OF TEXAS, LLC - TX 177F LA PORTE TX
2019-04-26 281-603-9XXX 9000–9999Assigned ONVOY, LLC - TX 903C KEMAH TX
2019-04-17 281-562-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F BAMMEL TX
2019-04-11 281-503-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 PORTER HTS TX
2019-04-09 281-801-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 SPRING TX
2019-04-09 281-801-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 SPRING TX
2019-03-29 281-505-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 KATY 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.