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
2019-02-19 346-374-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J HSTNSUBURB TX
2019-02-19 346-379-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 CYPRESS TX
2019-02-19 346-379-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 CYPRESS TX
2019-02-19 346-446-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J HOUSTON TX
2019-02-19 346-446-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J HOUSTON TX
2019-02-19 346-446-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J HOUSTON TX
2019-02-19 346-843-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J RICHMNRNBG TX
2019-02-14 346-377-0XXX 0000–0999Assigned PEERLESS NETWORK OF TEXAS, LLC - TX 177F LANGHAMCRK TX
2019-02-04 346-295-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ARCOLA TX
2019-02-04 346-369-7XXX 7000–7999Assigned ONVOY, LLC - TX 903C BEACH CITY TX
2019-02-04 346-369-8XXX 8000–8999Assigned ONVOY, LLC - TX 903C BEACH CITY TX
2019-02-04 346-382-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SPRING TX
2019-02-04 346-382-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SPRING TX
2019-02-04 346-999-2XXX 2000–2999Assigned ONVOY, LLC - TX 903C HUFFMAN TX
2019-02-01 346-382-3XXX 3000–3999Assigned CHARTER IP ENABLED SERVICES, LLC 792K SPRING TX
2019-01-25 346-381-1XXX 1000–1999Assigned VOIP INNOVATIONS, LLC 597F HSTNSUBURB TX
2019-01-25 346-382-1XXX 1000–1999Assigned VOIP INNOVATIONS, LLC 597F SPRING TX
2019-01-24 346-380-9XXX 9000–9999Assigned AERIAL COMMUNICATIONS, INC. 6701 SPRING TX
2019-01-23 346-379-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CYPRESS TX
2019-01-22 346-367-1XXX 1000–1999Assigned VOIP INNOVATIONS, LLC 597F TOMBALL TX
2019-01-18 346-378-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 HSTNSUBURB TX
2019-01-18 346-378-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 HSTNSUBURB TX
2019-01-18 346-378-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 HSTNSUBURB TX
2019-01-18 346-378-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 HSTNSUBURB TX
2019-01-18 346-378-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 HSTNSUBURB TX
2019-01-17 346-377-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LANGHAMCRK TX
2019-01-17 346-377-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LANGHAMCRK TX
2019-01-08 346-376-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 SATSUMA TX
2019-01-08 346-376-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 SATSUMA TX
2019-01-08 346-376-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 SATSUMA TX
2019-01-07 346-364-2XXX 2000–2999Assigned AERIAL COMMUNICATIONS, INC. 6701 CLEVELAND TX
2019-01-07 346-364-3XXX 3000–3999Assigned AERIAL COMMUNICATIONS, INC. 6701 CLEVELAND TX
2019-01-07 346-364-4XXX 4000–4999Assigned AERIAL COMMUNICATIONS, INC. 6701 CLEVELAND TX
2019-01-07 346-364-5XXX 5000–5999Assigned AERIAL COMMUNICATIONS, INC. 6701 CLEVELAND TX
2019-01-03 346-373-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHANNELVW TX
2018-12-26 346-318-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 ALVIN TX
2018-12-24 346-278-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MANVEL TX
2018-12-24 346-345-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HUMBLE TX
2018-12-24 346-367-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 TOMBALL TX
2018-12-21 346-324-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 HOUSTON TX
2018-12-21 346-324-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 HOUSTON TX
2018-12-21 346-324-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 HOUSTON TX
2018-12-21 346-324-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 HOUSTON TX
2018-12-21 346-324-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 HOUSTON TX
2018-12-21 346-324-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 HOUSTON TX
2018-12-20 346-337-2XXX 2000–2999Assigned AERIAL COMMUNICATIONS, INC. 6701 CYPRESS TX
2018-12-20 346-375-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SUGAR LAND TX
2018-12-20 346-375-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SUGAR LAND TX
2018-12-20 346-610-9XXX 9000–9999Assigned ONVOY, LLC - TX 903C HOUSTON TX
2018-12-17 346-374-0XXX 0000–0999Assigned VONAGE AMERICA LLC 197D 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.