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
2007-04-03 281-781-3XXX 3000–3999Assigned AERIAL COMMUNICATIONS, INC. 6701 BAMMEL TX
2007-04-03 281-781-4XXX 4000–4999Assigned AERIAL COMMUNICATIONS, INC. 6701 BAMMEL TX
2007-04-03 281-781-5XXX 5000–5999Assigned AERIAL COMMUNICATIONS, INC. 6701 BAMMEL TX
2007-04-03 281-781-6XXX 6000–6999Assigned AERIAL COMMUNICATIONS, INC. 6701 BAMMEL TX
2007-04-03 281-871-0XXX 0000–0999Assigned AERIAL COMMUNICATIONS, INC. 6701 BAMMEL TX
2007-04-03 281-871-1XXX 1000–1999Assigned AERIAL COMMUNICATIONS, INC. 6701 BAMMEL TX
2007-04-03 281-871-8XXX 8000–8999Assigned AERIAL COMMUNICATIONS, INC. 6701 BAMMEL TX
2007-04-03 281-943-4XXX 4000–4999Assigned AERIAL COMMUNICATIONS, INC. 6701 BAMMEL TX
2007-04-03 281-943-9XXX 9000–9999Assigned AERIAL COMMUNICATIONS, INC. 6701 BAMMEL TX
2007-04-03 281-975-7XXX 7000–7999Assigned AERIAL COMMUNICATIONS, INC. 6701 BAMMEL TX
2007-04-03 281-975-8XXX 8000–8999Assigned AERIAL COMMUNICATIONS, INC. 6701 BAMMEL TX
2007-04-02 281-917-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 BAYTOWN TX
2007-03-27 281-975-9XXX 9000–9999Assigned AERIAL COMMUNICATIONS, INC. 6701 BAMMEL TX
2007-03-23 281-719-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J SPRING TX
2007-03-23 281-904-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 HOUSTON TX
2007-03-20 281-838-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BAYTOWN TX
2007-03-19 281-506-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J HSTNSUBURB TX
2007-03-08 281-608-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HUMBLE TX
2007-03-08 281-608-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HUMBLE TX
2007-03-08 281-608-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HUMBLE TX
2007-03-08 281-706-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HUMBLE TX
2007-03-08 281-706-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HUMBLE TX
2007-03-07 281-508-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DICKINSON TX
2007-03-07 281-508-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DICKINSON TX
2007-03-07 281-508-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DICKINSON TX
2007-03-07 281-678-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DICKINSON TX
2007-03-05 281-201-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SUGAR LAND TX
2007-03-02 281-706-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HUMBLE TX
2007-03-02 281-706-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HUMBLE TX
2007-03-02 281-706-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HUMBLE TX
2007-03-02 281-818-1XXX 1000–1999Assigned AERIAL COMMUNICATIONS, INC. 6701 HSTNSUBURB TX
2007-03-02 281-818-2XXX 2000–2999Assigned AERIAL COMMUNICATIONS, INC. 6701 HSTNSUBURB TX
2007-03-02 281-871-9XXX 9000–9999Assigned AERIAL COMMUNICATIONS, INC. 6701 BAMMEL TX
2007-03-01 281-943-6XXX 6000–6999Assigned PAETEC ITEL, LLC 829J BAMMEL TX
2007-03-01 281-943-7XXX 7000–7999Assigned PAETEC ITEL, LLC 829J BAMMEL TX
2007-03-01 281-943-8XXX 8000–8999Assigned PAETEC ITEL, LLC 829J BAMMEL TX
2007-02-28 281-515-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BAYTOWN TX
2007-02-28 281-515-6XXX 6000–6999Assigned AERIAL COMMUNICATIONS, INC. 6701 BAYTOWN TX
2007-02-27 281-213-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J CYPRESS TX
2007-02-26 281-962-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 SHELDON TX
2007-02-23 281-515-7XXX 7000–7999Assigned AERIAL COMMUNICATIONS, INC. 6701 BAYTOWN TX
2007-02-23 281-973-1XXX 1000–1999Assigned CSC VOICE, LLC 612K HUMBLE TX
2007-02-21 281-838-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 BAYTOWN TX
2007-02-16 281-248-1XXX 1000–1999Assigned AERIAL COMMUNICATIONS, INC. 6701 BAMMEL TX
2007-02-16 281-248-3XXX 3000–3999Assigned AERIAL COMMUNICATIONS, INC. 6701 BAMMEL TX
2007-02-16 281-248-6XXX 6000–6999Assigned AERIAL COMMUNICATIONS, INC. 6701 BAMMEL TX
2007-02-16 281-781-9XXX 9000–9999Assigned AERIAL COMMUNICATIONS, INC. 6701 BAMMEL TX
2007-02-13 281-903-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SUGAR LAND TX
2007-02-09 281-416-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J HSTNSUBURB TX
2007-02-08 281-515-2XXX 2000–2999Assigned AERIAL COMMUNICATIONS, INC. 6701 BAYTOWN 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.