NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

36 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 21
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
2016-11-03 346-719-3XXX 3000–3999Assigned AERIAL COMMUNICATIONS, INC. 6701 HOUSTON TX
2016-11-03 346-719-4XXX 4000–4999Assigned AERIAL COMMUNICATIONS, INC. 6701 HOUSTON TX
2016-11-03 346-719-5XXX 5000–5999Assigned AERIAL COMMUNICATIONS, INC. 6701 HOUSTON TX
2016-11-03 346-719-6XXX 6000–6999Assigned AERIAL COMMUNICATIONS, INC. 6701 HOUSTON TX
2016-11-03 346-719-7XXX 7000–7999Assigned AERIAL COMMUNICATIONS, INC. 6701 HOUSTON TX
2016-11-03 346-719-8XXX 8000–8999Assigned AERIAL COMMUNICATIONS, INC. 6701 HOUSTON TX
2016-11-03 346-719-9XXX 9000–9999Assigned AERIAL COMMUNICATIONS, INC. 6701 HOUSTON TX
2016-11-02 346-414-9XXX 9000–9999Assigned AERIAL COMMUNICATIONS, INC. 6701 CLEVELAND TX
2016-11-02 346-867-5XXX 5000–5999Assigned COMMIO, LLC 939H HOUSTON TX
2016-10-21 346-403-1XXX 1000–1999Assigned PEERLESS NETWORK OF TEXAS, LLC - TX 177F HOUSTON TX
2016-10-20 346-561-1XXX 1000–1999Assigned AERIAL COMMUNICATIONS, INC. 6701 HOUSTON TX
2016-10-20 346-561-2XXX 2000–2999Assigned AERIAL COMMUNICATIONS, INC. 6701 HOUSTON TX
2016-10-20 346-561-3XXX 3000–3999Assigned AERIAL COMMUNICATIONS, INC. 6701 HOUSTON TX
2016-10-20 346-561-4XXX 4000–4999Assigned AERIAL COMMUNICATIONS, INC. 6701 HOUSTON TX
2016-10-20 346-561-9XXX 9000–9999Assigned AERIAL COMMUNICATIONS, INC. 6701 HOUSTON TX
2016-10-19 346-387-9XXX 9000–9999Assigned COMCAST IP PHONE, LLC 318J KATY TX
2016-10-19 346-874-2XXX 2000–2999Assigned LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 7074 SUGAR LAND TX
2016-10-19 346-874-3XXX 3000–3999Assigned LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 7074 SUGAR LAND TX
2016-10-19 346-874-4XXX 4000–4999Assigned LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 7074 SUGAR LAND TX
2016-10-19 346-874-5XXX 5000–5999Assigned LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 7074 SUGAR LAND TX
2016-10-19 346-874-6XXX 6000–6999Assigned LEVEL 3 OF TELECOM OF TEXAS, LLC - TX 7074 SUGAR LAND TX
2016-10-19 346-998-0XXX 0000–0999Assigned PEERLESS NETWORK OF TEXAS, LLC - TX 177F HOUSTON TX
2016-10-19 346-998-1XXX 1000–1999Assigned PEERLESS NETWORK OF TEXAS, LLC - TX 177F HOUSTON TX
2016-10-19 346-998-2XXX 2000–2999Assigned PEERLESS NETWORK OF TEXAS, LLC - TX 177F HOUSTON TX
2016-10-19 346-998-3XXX 3000–3999Assigned PEERLESS NETWORK OF TEXAS, LLC - TX 177F HOUSTON TX
2016-10-19 346-998-4XXX 4000–4999Assigned PEERLESS NETWORK OF TEXAS, LLC - TX 177F HOUSTON TX
2016-10-19 346-998-5XXX 5000–5999Assigned PEERLESS NETWORK OF TEXAS, LLC - TX 177F HOUSTON TX
2016-10-19 346-998-6XXX 6000–6999Assigned PEERLESS NETWORK OF TEXAS, LLC - TX 177F HOUSTON TX
2016-10-19 346-998-7XXX 7000–7999Assigned PEERLESS NETWORK OF TEXAS, LLC - TX 177F HOUSTON TX
2016-10-19 346-998-8XXX 8000–8999Assigned PEERLESS NETWORK OF TEXAS, LLC - TX 177F HOUSTON TX
2016-10-19 346-998-9XXX 9000–9999Assigned PEERLESS NETWORK OF TEXAS, LLC - TX 177F HOUSTON TX
2016-10-18 346-260-5XXX 5000–5999Assigned COMCAST IP PHONE, LLC 318J SATSUMA TX
2016-10-12 346-233-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BAYTOWN TX
2016-10-12 346-233-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BAYTOWN TX
2016-10-12 346-233-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BAYTOWN TX
2016-10-12 346-233-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BAYTOWN TX
2016-10-12 346-233-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BAYTOWN TX
2016-10-12 346-779-0XXX 0000–0999Assigned METROPCS, INC. 5562 SUGAR LAND TX
2016-10-12 346-779-1XXX 1000–1999Assigned METROPCS, INC. 5562 SUGAR LAND TX
2016-10-12 346-779-2XXX 2000–2999Assigned METROPCS, INC. 5562 SUGAR LAND TX
2016-10-12 346-779-3XXX 3000–3999Assigned METROPCS, INC. 5562 SUGAR LAND TX
2016-10-12 346-779-4XXX 4000–4999Assigned METROPCS, INC. 5562 SUGAR LAND TX
2016-10-12 346-779-5XXX 5000–5999Assigned METROPCS, INC. 5562 SUGAR LAND TX
2016-10-12 346-779-6XXX 6000–6999Assigned METROPCS, INC. 5562 SUGAR LAND TX
2016-10-12 346-779-7XXX 7000–7999Assigned METROPCS, INC. 5562 SUGAR LAND TX
2016-10-12 346-779-8XXX 8000–8999Assigned METROPCS, INC. 5562 SUGAR LAND TX
2016-10-12 346-779-9XXX 9000–9999Assigned METROPCS, INC. 5562 SUGAR LAND TX
2016-10-07 346-774-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HSTNSUBURB TX
2016-10-07 346-774-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HSTNSUBURB TX
2016-10-07 346-774-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HSTNSUBURB 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.