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
2018-12-17 346-374-1XXX 1000–1999Assigned VONAGE AMERICA LLC 197D HSTNSUBURB TX
2018-12-17 346-374-2XXX 2000–2999Assigned VONAGE AMERICA LLC 197D HSTNSUBURB TX
2018-12-17 346-374-3XXX 3000–3999Assigned VONAGE AMERICA LLC 197D HSTNSUBURB TX
2018-12-17 346-374-4XXX 4000–4999Assigned VONAGE AMERICA LLC 197D HSTNSUBURB TX
2018-12-17 346-374-5XXX 5000–5999Assigned VONAGE AMERICA LLC 197D HSTNSUBURB TX
2018-12-13 346-370-5XXX 5000–5999Assigned AERIAL COMMUNICATIONS, INC. 6701 SPRING TX
2018-12-13 346-370-6XXX 6000–6999Assigned AERIAL COMMUNICATIONS, INC. 6701 SPRING TX
2018-12-13 346-370-7XXX 7000–7999Assigned AERIAL COMMUNICATIONS, INC. 6701 SPRING TX
2018-12-13 346-370-8XXX 8000–8999Assigned AERIAL COMMUNICATIONS, INC. 6701 SPRING TX
2018-12-13 346-372-1XXX 1000–1999Assigned AERIAL COMMUNICATIONS, INC. 6701 SPRING TX
2018-12-13 346-372-2XXX 2000–2999Assigned AERIAL COMMUNICATIONS, INC. 6701 SPRING TX
2018-12-13 346-372-4XXX 4000–4999Assigned AERIAL COMMUNICATIONS, INC. 6701 SPRING TX
2018-12-10 346-372-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SPRING TX
2018-12-05 346-289-3XXX 3000–3999Assigned AERIAL COMMUNICATIONS, INC. 6701 DICKINSON TX
2018-12-05 346-289-4XXX 4000–4999Assigned AERIAL COMMUNICATIONS, INC. 6701 DICKINSON TX
2018-11-30 346-263-3XXX 3000–3999Assigned PEERLESS NETWORK OF TEXAS, LLC - TX 177F BAYTOWN TX
2018-11-30 346-278-3XXX 3000–3999Assigned PEERLESS NETWORK OF TEXAS, LLC - TX 177F MANVEL TX
2018-11-30 346-338-2XXX 2000–2999Assigned PEERLESS NETWORK OF TEXAS, LLC - TX 177F VLY LODGE TX
2018-11-28 346-362-1XXX 1000–1999Assigned PEERLESS NETWORK OF TEXAS, LLC - TX 177F SHELDON TX
2018-11-28 346-815-9XXX 9000–9999Assigned PEERLESS NETWORK OF TEXAS, LLC - TX 177F APOLLO TX
2018-11-28 346-999-1XXX 1000–1999Assigned PEERLESS NETWORK OF TEXAS, LLC - TX 177F HUFFMAN TX
2018-11-26 346-372-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J SPRING TX
2018-11-16 346-271-7XXX 7000–7999Assigned ONVOY, LLC - TX 903C FRIENDSWD TX
2018-11-16 346-271-8XXX 8000–8999Assigned ONVOY, LLC - TX 903C FRIENDSWD TX
2018-11-15 346-324-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J HOUSTON TX
2018-11-15 346-345-0XXX 0000–0999Assigned IP HORIZON LLC 515J HUMBLE TX
2018-11-15 346-345-1XXX 1000–1999Assigned IP HORIZON LLC 515J HUMBLE TX
2018-11-15 346-843-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 RICHMNRNBG TX
2018-11-14 346-354-4XXX 4000–4999Assigned IP HORIZON LLC 515J HOUSTON TX
2018-11-14 346-354-5XXX 5000–5999Assigned IP HORIZON LLC 515J HOUSTON TX
2018-11-14 346-357-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HSTNSUBURB TX
2018-11-14 346-357-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HSTNSUBURB TX
2018-11-14 346-357-6XXX 6000–6999Assigned IP HORIZON LLC 515J HSTNSUBURB TX
2018-11-14 346-357-7XXX 7000–7999Assigned IP HORIZON LLC 515J HSTNSUBURB TX
2018-11-13 346-230-9XXX 9000–9999Assigned IP HORIZON LLC 515J APOLLO TX
2018-11-13 346-292-0XXX 0000–0999Assigned IP HORIZON LLC 515J BAYTOWN TX
2018-11-13 346-345-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J HUMBLE TX
2018-11-13 346-815-1XXX 1000–1999Assigned IP HORIZON LLC 515J APOLLO TX
2018-11-07 346-354-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 HOUSTON TX
2018-11-07 346-357-0XXX 0000–0999Assigned VONAGE AMERICA LLC 197D HSTNSUBURB TX
2018-11-07 346-357-1XXX 1000–1999Assigned VONAGE AMERICA LLC 197D HSTNSUBURB TX
2018-11-07 346-357-2XXX 2000–2999Assigned VONAGE AMERICA LLC 197D HSTNSUBURB TX
2018-11-06 346-337-8XXX 8000–8999Assigned AERIAL COMMUNICATIONS, INC. 6701 CYPRESS TX
2018-11-06 346-762-7XXX 7000–7999Assigned AERIAL COMMUNICATIONS, INC. 6701 RICHMNRNBG TX
2018-11-06 346-762-8XXX 8000–8999Assigned AERIAL COMMUNICATIONS, INC. 6701 RICHMNRNBG TX
2018-11-05 346-337-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 CYPRESS TX
2018-11-05 346-337-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 CYPRESS TX
2018-11-05 346-337-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 CYPRESS TX
2018-11-01 346-336-6XXX 6000–6999Assigned COMCAST IP PHONE, LLC 318J TOMBALL TX
2018-10-29 346-373-9XXX 9000–9999Assigned PEERLESS NETWORK OF TEXAS, LLC - TX 177F CHANNELVW 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.