NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

33 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 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
2018-08-22 346-292-9XXX 9000–9999Assigned PEERLESS NETWORK OF TEXAS, LLC - TX 177F BAYTOWN TX
2018-08-22 346-301-9XXX 9000–9999Assigned PEERLESS NETWORK OF TEXAS, LLC - TX 177F SPLENDORA TX
2018-08-22 346-703-4XXX 4000–4999Assigned PEERLESS NETWORK OF TEXAS, LLC - TX 177F PINEHURST TX
2018-08-21 346-357-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HSTNSUBURB TX
2018-08-21 346-357-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HSTNSUBURB TX
2018-08-20 346-271-9XXX 9000–9999Assigned TELNYX LLC 073H FRIENDSWD TX
2018-08-20 346-332-4XXX 4000–4999Assigned AERIAL COMMUNICATIONS, INC. 6701 CYPRESS TX
2018-08-20 346-332-5XXX 5000–5999Assigned AERIAL COMMUNICATIONS, INC. 6701 CYPRESS TX
2018-08-20 346-493-4XXX 4000–4999Assigned AERIAL COMMUNICATIONS, INC. 6701 BAMMEL TX
2018-08-20 346-493-5XXX 5000–5999Assigned AERIAL COMMUNICATIONS, INC. 6701 BAMMEL TX
2018-08-17 346-287-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LANGHAMCRK TX
2018-08-17 346-287-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LANGHAMCRK TX
2018-08-17 346-342-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HSTNSUBURB TX
2018-08-17 346-342-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HSTNSUBURB TX
2018-08-17 346-342-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HSTNSUBURB TX
2018-08-16 346-414-7XXX 7000–7999Assigned AERIAL COMMUNICATIONS, INC. 6701 CLEVELAND TX
2018-08-16 346-843-4XXX 4000–4999Assigned AERIAL COMMUNICATIONS, INC. 6701 RICHMNRNBG TX
2018-08-15 346-355-0XXX 0000–0999Assigned VOIP INNOVATIONS, LLC 597F HOUSTON TX
2018-08-15 346-446-1XXX 1000–1999Assigned WIDE VOICE, LLC - TX 706G HOUSTON TX
2018-08-09 346-354-1XXX 1000–1999Assigned PEERLESS NETWORK OF TEXAS, LLC - TX 177F HOUSTON TX
2018-08-06 346-257-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KATY TX
2018-08-06 346-261-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 PORTER TX
2018-08-06 346-278-7XXX 7000–7999Assigned PEERLESS NETWORK OF TEXAS, LLC - TX 177F MANVEL TX
2018-08-06 346-289-1XXX 1000–1999Assigned PEERLESS NETWORK OF TEXAS, LLC - TX 177F DICKINSON TX
2018-08-06 346-325-2XXX 2000–2999Assigned PEERLESS NETWORK OF TEXAS, LLC - TX 177F SATSUMA TX
2018-08-06 346-328-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SPRING TX
2018-08-06 346-336-7XXX 7000–7999Assigned PEERLESS NETWORK OF TEXAS, LLC - TX 177F TOMBALL TX
2018-08-06 346-338-1XXX 1000–1999Assigned PEERLESS NETWORK OF TEXAS, LLC - TX 177F VLY LODGE TX
2018-08-06 346-342-4XXX 4000–4999Assigned PEERLESS NETWORK OF TEXAS, LLC - TX 177F HSTNSUBURB TX
2018-08-06 346-908-2XXX 2000–2999Assigned PEERLESS NETWORK OF TEXAS, LLC - TX 177F SMITHERSLK TX
2018-08-01 346-334-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 SPRING TX
2018-08-01 346-334-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 SPRING TX
2018-07-27 346-209-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F LIVERPOOL TX
2018-07-27 346-278-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F MANVEL TX
2018-07-25 346-325-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SATSUMA TX
2018-07-25 346-353-0XXX 0000–0999Assigned AIRESPRING, INC. 996H HOUSTON TX
2018-07-25 346-762-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F RICHMNRNBG TX
2018-07-24 346-356-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 HOUSTON TX
2018-07-24 346-356-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 HOUSTON TX
2018-07-24 346-356-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 HOUSTON TX
2018-07-24 346-356-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 HOUSTON TX
2018-07-24 346-356-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 HOUSTON TX
2018-07-24 346-356-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 HOUSTON TX
2018-07-24 346-356-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 HOUSTON TX
2018-07-24 346-356-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 HOUSTON TX
2018-07-24 346-356-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 HOUSTON TX
2018-07-24 346-356-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 HOUSTON TX
2018-07-20 346-334-8XXX 8000–8999Assigned AERIAL COMMUNICATIONS, INC. 6701 SPRING TX
2018-07-20 346-334-9XXX 9000–9999Assigned AERIAL COMMUNICATIONS, INC. 6701 SPRING TX
2018-07-19 346-350-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SUGAR LAND 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.