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
2006-12-01 281-767-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J ROSHARON TX
2006-12-01 281-781-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J BAMMEL TX
2006-12-01 281-781-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J BAMMEL TX
2006-12-01 281-937-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J SMITHERSLK TX
2006-12-01 281-942-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J SEABROOK TX
2006-12-01 281-962-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J SHELDON TX
2006-12-01 281-973-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J HUMBLE TX
2006-12-01 281-973-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J HUMBLE TX
2006-11-22 281-741-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J HSTNSUBURB TX
2006-11-22 281-741-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J HSTNSUBURB TX
2006-11-22 281-741-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J HSTNSUBURB TX
2006-11-21 281-362-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J SPRING TX
2006-11-21 281-501-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J HOUSTON TX
2006-11-21 281-501-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J HOUSTON TX
2006-11-21 281-501-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J HOUSTON TX
2006-11-21 281-501-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J HOUSTON TX
2006-11-21 281-690-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SUGAR LAND TX
2006-11-21 281-690-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SUGAR LAND TX
2006-11-16 281-436-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 HSTNSUBURB TX
2006-11-14 281-515-3XXX 3000–3999Assigned AERIAL COMMUNICATIONS, INC. 6701 BAYTOWN TX
2006-11-14 281-982-3XXX 3000–3999Assigned AT&T ENTERPRISES, LLC 516C WESTFIELD TX
2006-11-10 281-683-7XXX 7000–7999Assigned AERIAL COMMUNICATIONS, INC. 6701 BAYTOWN TX
2006-11-08 281-549-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 KEMAH TX
2006-11-07 281-727-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 HOUSTON TX
2006-11-03 281-944-3XXX 3000–3999Assigned ONVOY, LLC - TX 903C BARKER TX
2006-11-03 281-944-4XXX 4000–4999Assigned ONVOY, LLC - TX 903C BARKER TX
2006-10-23 281-740-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 HOUSTON TX
2006-10-23 281-740-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 HOUSTON TX
2006-10-23 281-740-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 HOUSTON TX
2006-10-23 281-740-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 HOUSTON TX
2006-10-23 281-786-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 APOLLO TX
2006-10-20 281-296-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 7239 SPRING TX
2006-10-20 281-378-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 7239 TOMBALL TX
2006-10-20 281-476-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 7239 DEER PARK TX
2006-10-20 281-476-7XXX 7000–7999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 7239 DEER PARK TX
2006-10-20 281-508-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DICKINSON TX
2006-10-20 281-508-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DICKINSON TX
2006-10-20 281-946-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 7239 DEER PARK TX
2006-10-20 281-946-8XXX 8000–8999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 7239 DEER PARK TX
2006-10-20 281-973-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 7239 HUMBLE TX
2006-10-06 281-706-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HUMBLE TX
2006-10-06 281-706-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HUMBLE TX
2006-10-06 281-706-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HUMBLE TX
2006-10-02 281-907-6XXX 6000–6999Assigned SOUTHWESTERN BELL 9533 SPRING TX
2006-09-29 281-671-5XXX 5000–5999Assigned PAETEC ITEL, LLC 829J SATSUMA TX
2006-09-29 281-725-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RICHMNRNBG TX
2006-09-29 281-725-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RICHMNRNBG TX
2006-09-25 281-740-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 HOUSTON TX
2006-09-25 281-740-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 HOUSTON TX
2006-09-25 281-740-6XXX 6000–6999Assigned 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.