NumberResearch Membership · Data 09/21/2026

Recent thousands-block assignments

33 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 346
ONVOY, LLC - TX 18
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 9
PAETEC ITEL, LLC 2
BANDWIDTH.COM CLEC, LLC - TX 2
TELNYX 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
2021-08-11 346-491-7XXX 7000–7999Assigned AERIAL COMMUNICATIONS, INC. 6701 BAMMEL TX
2021-08-11 346-491-8XXX 8000–8999Assigned AERIAL COMMUNICATIONS, INC. 6701 BAMMEL TX
2021-08-11 346-491-9XXX 9000–9999Assigned AERIAL COMMUNICATIONS, INC. 6701 BAMMEL TX
2021-08-11 346-755-5XXX 5000–5999Assigned FRACTEL, LLC 965H SUGAR LAND TX
2021-08-11 346-977-1XXX 1000–1999Assigned AERIAL COMMUNICATIONS, INC. 6701 BAYTOWN TX
2021-08-11 346-977-9XXX 9000–9999Assigned AERIAL COMMUNICATIONS, INC. 6701 BAYTOWN TX
2021-08-10 346-385-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J FRIENDSWD TX
2021-08-10 346-457-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KATY TX
2021-08-10 346-457-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KATY TX
2021-08-10 346-471-8XXX 8000–8999Assigned AERIAL COMMUNICATIONS, INC. 6701 HSTNSUBURB TX
2021-08-10 346-471-9XXX 9000–9999Assigned AERIAL COMMUNICATIONS, INC. 6701 HSTNSUBURB TX
2021-08-10 346-479-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 LANGHAMCRK TX
2021-08-10 346-479-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 LANGHAMCRK TX
2021-08-10 346-479-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 LANGHAMCRK TX
2021-08-10 346-479-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 LANGHAMCRK TX
2021-08-10 346-479-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 LANGHAMCRK TX
2021-08-10 346-479-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 LANGHAMCRK TX
2021-08-10 346-479-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 LANGHAMCRK TX
2021-08-10 346-479-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 LANGHAMCRK TX
2021-08-10 346-479-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 LANGHAMCRK TX
2021-08-10 346-479-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 LANGHAMCRK TX
2021-08-10 346-744-0XXX 0000–0999Assigned AERIAL COMMUNICATIONS, INC. 6701 HSTNSUBURB TX
2021-08-10 346-744-1XXX 1000–1999Assigned AERIAL COMMUNICATIONS, INC. 6701 HSTNSUBURB TX
2021-08-10 346-744-2XXX 2000–2999Assigned AERIAL COMMUNICATIONS, INC. 6701 HSTNSUBURB TX
2021-08-10 346-744-9XXX 9000–9999Assigned AERIAL COMMUNICATIONS, INC. 6701 HSTNSUBURB TX
2021-08-06 346-457-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J KATY TX
2021-08-06 346-462-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J CYPRESS TX
2021-08-06 346-467-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J RICHMNRNBG TX
2021-08-06 346-476-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J ARCOLA TX
2021-08-06 346-482-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J LANGHAMCRK TX
2021-08-06 346-496-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J BEACH CITY TX
2021-08-06 346-499-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J DEER PARK TX
2021-08-06 346-677-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J BAYTOWN TX
2021-08-06 346-703-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J PINEHURST TX
2021-08-06 346-746-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J SMITHERSLK TX
2021-08-06 346-786-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J SPRING TX
2021-08-06 346-789-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J CHANNELVW TX
2021-08-06 346-866-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J VLY LODGE TX
2021-08-03 346-468-2XXX 2000–2999Assigned COMMIO, LLC 939H TOMBALL TX
2021-08-03 346-468-3XXX 3000–3999Assigned COMMIO, LLC 939H TOMBALL TX
2021-08-03 346-468-5XXX 5000–5999Assigned COMMIO, LLC 939H TOMBALL TX
2021-08-03 346-468-6XXX 6000–6999Assigned COMMIO, LLC 939H TOMBALL TX
2021-08-03 346-478-2XXX 2000–2999Assigned COMMIO, LLC 939H SPRING TX
2021-08-03 346-478-3XXX 3000–3999Assigned COMMIO, LLC 939H SPRING TX
2021-08-03 346-478-4XXX 4000–4999Assigned COMMIO, LLC 939H SPRING TX
2021-08-03 346-478-9XXX 9000–9999Assigned COMMIO, LLC 939H SPRING TX
2021-07-30 346-855-5XXX 5000–5999Assigned FRACTEL, LLC 965H BAYTOWN TX
2021-07-27 346-296-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F PINEHURST TX
2021-07-27 346-296-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F PINEHURST TX
2021-07-27 346-485-0XXX 0000–0999Assigned TELNYX LLC 073H HUFFMAN 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.