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
2007-06-04 281-779-9XXX 9000–9999Assigned AERIAL COMMUNICATIONS, INC. 6701 HOUSTON TX
2007-06-04 281-840-7XXX 7000–7999Assigned AERIAL COMMUNICATIONS, INC. 6701 HOUSTON TX
2007-06-04 281-840-8XXX 8000–8999Assigned AERIAL COMMUNICATIONS, INC. 6701 HOUSTON TX
2007-05-21 281-889-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 HOUSTON TX
2007-05-21 281-889-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 HOUSTON TX
2007-05-18 281-606-1XXX 1000–1999Assigned ONVOY, LLC - TX 903C HSTNSUBURB TX
2007-05-18 281-606-2XXX 2000–2999Assigned ONVOY, LLC - TX 903C HSTNSUBURB TX
2007-05-18 281-904-2XXX 2000–2999Assigned AERIAL COMMUNICATIONS, INC. 6701 HOUSTON TX
2007-05-18 281-904-3XXX 3000–3999Assigned AERIAL COMMUNICATIONS, INC. 6701 HOUSTON TX
2007-05-18 281-904-4XXX 4000–4999Assigned AERIAL COMMUNICATIONS, INC. 6701 HOUSTON TX
2007-05-18 281-904-5XXX 5000–5999Assigned AERIAL COMMUNICATIONS, INC. 6701 HOUSTON TX
2007-05-18 281-904-6XXX 6000–6999Assigned AERIAL COMMUNICATIONS, INC. 6701 HOUSTON TX
2007-05-17 281-304-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J CYPRESS TX
2007-05-17 281-346-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J VLY LODGE TX
2007-05-17 281-645-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J WESTFIELD TX
2007-05-17 281-651-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J SPRING TX
2007-05-17 281-719-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J SPRING TX
2007-05-17 281-762-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J RICHMNRNBG TX
2007-05-17 281-789-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J PINEHURST TX
2007-05-17 281-838-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J BAYTOWN TX
2007-05-11 281-882-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 SPRING TX
2007-05-07 281-739-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BAYTOWN TX
2007-05-07 281-739-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BAYTOWN TX
2007-05-04 281-889-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 HOUSTON TX
2007-05-04 281-889-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 HOUSTON TX
2007-05-04 281-889-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 HOUSTON TX
2007-05-01 281-720-2XXX 2000–2999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 SATSUMA TX
2007-05-01 281-739-9XXX 9000–9999Assigned AERIAL COMMUNICATIONS, INC. 6701 BAYTOWN TX
2007-04-27 281-806-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 7239 CLEVELAND TX
2007-04-27 281-824-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 7239 ALVIN TX
2007-04-27 281-904-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 HOUSTON TX
2007-04-20 281-806-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CLEVELAND TX
2007-04-20 281-861-1XXX 1000–1999Assigned ONVOY, LLC - TX 903C LANGHAMCRK TX
2007-04-20 281-861-2XXX 2000–2999Assigned ONVOY, LLC - TX 903C LANGHAMCRK TX
2007-04-13 281-725-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RICHMNRNBG TX
2007-04-13 281-725-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 RICHMNRNBG TX
2007-04-12 281-644-8XXX 8000–8999Assigned CONSOLIDATED COMMUNICATIONS OF TEXAS COMPANY 2072 KATY TX
2007-04-12 281-918-0XXX 0000–0999Assigned COMCAST IP PHONE, LLC 318J BEACH CITY TX
2007-04-06 281-302-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SUGAR LAND TX
2007-04-06 281-746-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 7239 CYPRESS TX
2007-04-06 281-747-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 7239 PORTER TX
2007-04-06 281-789-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TX 7239 PINEHURST TX
2007-04-06 281-903-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SUGAR LAND TX
2007-04-06 281-903-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SUGAR LAND TX
2007-04-04 281-617-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 HSTNSUBURB TX
2007-04-04 281-617-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 HSTNSUBURB TX
2007-04-04 281-840-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 HOUSTON TX
2007-04-04 281-840-5XXX 5000–5999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 HOUSTON TX
2007-04-04 281-840-6XXX 6000–6999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 HOUSTON TX
2007-04-03 281-248-7XXX 7000–7999Assigned AERIAL COMMUNICATIONS, INC. 6701 BAMMEL 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.