NumberResearch Membership · Data 09/21/2026

Recent thousands-block assignments

11 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/21/2026

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
2011-07-15 281-677-1XXX 1000–1999Assigned AERIAL COMMUNICATIONS, INC. 6701 HSTNSUBURB TX
2011-07-15 281-677-7XXX 7000–7999Assigned AERIAL COMMUNICATIONS, INC. 6701 HSTNSUBURB TX
2011-07-15 281-848-8XXX 8000–8999Assigned AERIAL COMMUNICATIONS, INC. 6701 HSTNSUBURB TX
2011-07-15 281-848-9XXX 9000–9999Assigned AERIAL COMMUNICATIONS, INC. 6701 HSTNSUBURB TX
2011-07-15 281-886-4XXX 4000–4999Assigned AERIAL COMMUNICATIONS, INC. 6701 HSTNSUBURB TX
2011-07-15 281-886-6XXX 6000–6999Assigned AERIAL COMMUNICATIONS, INC. 6701 HSTNSUBURB TX
2011-07-15 281-886-9XXX 9000–9999Assigned AERIAL COMMUNICATIONS, INC. 6701 HSTNSUBURB TX
2011-07-15 281-925-8XXX 8000–8999Assigned AERIAL COMMUNICATIONS, INC. 6701 HSTNSUBURB TX
2011-07-15 281-925-9XXX 9000–9999Assigned AERIAL COMMUNICATIONS, INC. 6701 HSTNSUBURB TX
2011-07-14 281-254-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 HOUSTON TX
2011-07-14 281-254-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 HOUSTON TX
2011-07-14 281-254-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 HOUSTON TX
2011-07-14 281-254-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 HOUSTON TX
2011-07-14 281-254-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 HOUSTON TX
2011-07-14 281-254-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 HOUSTON TX
2011-07-14 281-866-4XXX 4000–4999Assigned AERIAL COMMUNICATIONS, INC. 6701 BAMMEL TX
2011-07-12 281-549-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J KEMAH TX
2011-07-12 281-724-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 LEAGUECITY TX
2011-07-06 281-254-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 HOUSTON TX
2011-07-06 281-254-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 HOUSTON TX
2011-06-16 281-201-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J SUGAR LAND TX
2011-06-08 281-766-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F PINEHURST TX
2011-06-07 281-591-9XXX 9000–9999Assigned ONVOY, LLC - TX 903C HSTNSUBURB TX
2011-06-07 281-670-9XXX 9000–9999Assigned ONVOY, LLC - TX 903C HSTNSUBURB TX
2011-06-07 281-674-9XXX 9000–9999Assigned ONVOY, LLC - TX 903C HSTNSUBURB TX
2011-06-07 281-677-6XXX 6000–6999Assigned ONVOY, LLC - TX 903C HSTNSUBURB TX
2011-06-06 281-204-9XXX 9000–9999Assigned AT&T ENTERPRISES, LLC 516C APOLLO TX
2011-06-03 281-743-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 LANGHAMCRK TX
2011-05-31 281-429-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 PORTER HTS TX
2011-05-26 281-407-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F HOUSTON TX
2011-05-26 281-407-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F HOUSTON TX
2011-05-26 281-407-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F HOUSTON TX
2011-05-26 281-407-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F HOUSTON TX
2011-05-26 281-407-8XXX 8000–8999Assigned ONVOY, LLC - TX 903C HOUSTON TX
2011-05-26 281-407-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F HOUSTON TX
2011-05-26 281-769-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 KATY TX
2011-05-23 281-299-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F ALVIN TX
2011-05-23 281-845-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F ARCOLA TX
2011-05-23 281-886-7XXX 7000–7999Assigned ONVOY, LLC - TX 903C HSTNSUBURB TX
2011-05-23 281-941-7XXX 7000–7999Assigned ONVOY, LLC - TX 903C LA PORTE TX
2011-05-23 281-941-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F LA PORTE TX
2011-05-23 281-944-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F BARKER TX
2011-05-20 281-819-7XXX 7000–7999Assigned ONVOY, LLC - TX 903C FRIENDSWD TX
2011-05-19 281-407-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F HOUSTON TX
2011-05-19 281-407-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F HOUSTON TX
2011-05-13 281-407-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 HOUSTON TX
2011-05-13 281-407-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 HOUSTON TX
2011-05-13 281-758-8XXX 8000–8999Assigned ONVOY, LLC - TX 903C CYPRESS TX
2011-05-13 281-994-7XXX 7000–7999Assigned ONVOY, LLC - TX 903C BARKER TX
2011-05-11 281-619-0XXX 0000–0999Assigned AERIAL COMMUNICATIONS, INC. 6701 HSTNSUBURB TX

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/21/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.