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
Clear Download CSV ↓
Recent thousands-block assignments
AssignedThousands-blockLast 4 digitsStatusAssigneeOCNRate centerState
2019-12-03 346-380-2XXX 2000–2999Assigned ONVOY, LLC - TX 903C SPRING TX
2019-12-03 346-380-3XXX 3000–3999Assigned ONVOY, LLC - TX 903C SPRING TX
2019-12-03 346-380-4XXX 4000–4999Assigned ONVOY, LLC - TX 903C SPRING TX
2019-12-03 346-567-0XXX 0000–0999Assigned TELNYX LLC 073H MONTBLVIEU TX
2019-12-02 346-375-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 SUGAR LAND TX
2019-12-02 346-380-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 SPRING TX
2019-12-02 346-465-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LANGHAMCRK TX
2019-12-02 346-465-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LANGHAMCRK TX
2019-12-02 346-465-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LANGHAMCRK TX
2019-12-02 346-465-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LANGHAMCRK TX
2019-12-02 346-465-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LANGHAMCRK TX
2019-12-02 346-529-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 HSTNSUBURB TX
2019-11-18 346-977-5XXX 5000–5999Assigned ONVOY, LLC - TX 903C BAYTOWN TX
2019-11-18 346-977-6XXX 6000–6999Assigned ONVOY, LLC - TX 903C BAYTOWN TX
2019-11-08 346-261-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PORTER TX
2019-11-08 346-295-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ARCOLA TX
2019-11-08 346-295-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 ARCOLA TX
2019-11-08 346-373-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHANNELVW TX
2019-11-08 346-394-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHANNELVW TX
2019-11-08 346-710-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BAYTOWN TX
2019-11-08 346-710-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BAYTOWN TX
2019-11-07 346-977-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 BAYTOWN TX
2019-10-31 346-426-9XXX 9000–9999Assigned HD CARRIER LLC 321J HOUSTON TX
2019-10-30 346-301-6XXX 6000–6999Assigned TELNYX LLC 073H SPLENDORA TX
2019-10-30 346-372-7XXX 7000–7999Assigned PEERLESS NETWORK OF TEXAS, LLC - TX 177F SPRING TX
2019-10-30 346-567-1XXX 1000–1999Assigned PEERLESS NETWORK OF TEXAS, LLC - TX 177F MONTBLVIEU TX
2019-10-29 346-407-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 HOUSTON TX
2019-10-29 346-407-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 HOUSTON TX
2019-10-25 346-398-0XXX 0000–0999Assigned ONVOY, LLC - TX 903C HOUSTON TX
2019-10-25 346-398-4XXX 4000–4999Assigned ONVOY, LLC - TX 903C HOUSTON TX
2019-10-25 346-398-6XXX 6000–6999Assigned ONVOY, LLC - TX 903C HOUSTON TX
2019-10-25 346-398-7XXX 7000–7999Assigned ONVOY, LLC - TX 903C HOUSTON TX
2019-10-25 346-398-9XXX 9000–9999Assigned ONVOY, LLC - TX 903C HOUSTON TX
2019-10-25 346-510-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H HOUSTON TX
2019-10-21 346-399-9XXX 9000–9999Assigned AERIAL COMMUNICATIONS, INC. 6701 BAMMEL TX
2019-10-14 346-263-4XXX 4000–4999Assigned AERIAL COMMUNICATIONS, INC. 6701 BAYTOWN TX
2019-10-14 346-375-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SUGAR LAND TX
2019-10-14 346-842-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 HUMBLE TX
2019-10-14 346-977-0XXX 0000–0999Assigned AERIAL COMMUNICATIONS, INC. 6701 BAYTOWN TX
2019-10-09 346-710-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H BAYTOWN TX
2019-10-07 346-392-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 SATSUMA TX
2019-10-07 346-392-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 SATSUMA TX
2019-10-07 346-392-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 SATSUMA TX
2019-10-07 346-398-1XXX 1000–1999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 HOUSTON TX
2019-10-07 346-398-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 HOUSTON TX
2019-10-07 346-398-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 HOUSTON TX
2019-10-04 346-376-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SATSUMA TX
2019-10-03 346-396-0XXX 0000–0999Assigned ONVOY, LLC - TX 903C HOUSTON TX
2019-10-02 346-396-1XXX 1000–1999Assigned ONVOY, LLC - TX 903C HOUSTON TX
2019-10-02 346-396-2XXX 2000–2999Assigned ONVOY, LLC - TX 903C HOUSTON 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.