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
2017-01-13 346-757-9XXX 9000–9999Assigned METROPCS, INC. 5562 STAFFORD TX
2017-01-11 346-917-6XXX 6000–6999Assigned METROPCS, INC. 5562 CHANNELVW TX
2017-01-11 346-917-7XXX 7000–7999Assigned METROPCS, INC. 5562 CHANNELVW TX
2017-01-05 346-242-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LANGHAMCRK TX
2017-01-03 346-867-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 HOUSTON TX
2016-12-22 346-874-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SUGAR LAND TX
2016-12-22 346-874-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SUGAR LAND TX
2016-12-20 346-413-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SPRING TX
2016-12-19 346-867-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J HOUSTON TX
2016-12-19 346-867-3XXX 3000–3999Assigned COMCAST IP PHONE, LLC 318J HOUSTON TX
2016-12-16 346-831-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SPRING TX
2016-12-12 346-360-9XXX 9000–9999Assigned AERIAL COMMUNICATIONS, INC. 6701 BAMMEL TX
2016-12-09 346-253-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MANVEL TX
2016-12-09 346-253-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MANVEL TX
2016-12-09 346-253-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MANVEL TX
2016-12-06 346-406-1XXX 1000–1999Assigned TELNYX LLC 073H HOUSTON TX
2016-11-30 346-260-6XXX 6000–6999Assigned METROPCS, INC. 5562 SATSUMA TX
2016-11-30 346-760-9XXX 9000–9999Assigned METROPCS, INC. 5562 BARKER TX
2016-11-29 346-253-1XXX 1000–1999Assigned ONVOY, LLC - TX 903C MANVEL TX
2016-11-29 346-330-5XXX 5000–5999Assigned ONVOY, LLC - TX 903C HOUSTON TX
2016-11-29 346-330-6XXX 6000–6999Assigned ONVOY, LLC - TX 903C HOUSTON TX
2016-11-29 346-412-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CYPRESS TX
2016-11-29 346-412-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CYPRESS TX
2016-11-29 346-570-0XXX 0000–0999Assigned ONVOY, LLC - TX 903C HSTNSUBURB TX
2016-11-29 346-570-1XXX 1000–1999Assigned ONVOY, LLC - TX 903C HSTNSUBURB TX
2016-11-29 346-815-2XXX 2000–2999Assigned ONVOY, LLC - TX 903C APOLLO TX
2016-11-22 346-351-0XXX 0000–0999Assigned AERIAL COMMUNICATIONS, INC. 6701 SPRING TX
2016-11-22 346-351-7XXX 7000–7999Assigned AERIAL COMMUNICATIONS, INC. 6701 SPRING TX
2016-11-22 346-351-8XXX 8000–8999Assigned AERIAL COMMUNICATIONS, INC. 6701 SPRING TX
2016-11-22 346-351-9XXX 9000–9999Assigned AERIAL COMMUNICATIONS, INC. 6701 SPRING TX
2016-11-22 346-816-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J ARCOLA TX
2016-11-21 346-330-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 HOUSTON TX
2016-11-15 346-808-7XXX 7000–7999Assigned COMCAST IP PHONE, LLC 318J TOMBALL TX
2016-11-15 346-867-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J HOUSTON TX
2016-11-14 346-368-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SUGAR LAND TX
2016-11-14 346-368-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SUGAR LAND TX
2016-11-09 346-867-0XXX 0000–0999Assigned PEERLESS NETWORK OF TEXAS, LLC - TX 177F HOUSTON TX
2016-11-07 346-763-0XXX 0000–0999Assigned AERIAL COMMUNICATIONS, INC. 6701 BAMMEL TX
2016-11-07 346-763-1XXX 1000–1999Assigned AERIAL COMMUNICATIONS, INC. 6701 BAMMEL TX
2016-11-07 346-763-2XXX 2000–2999Assigned AERIAL COMMUNICATIONS, INC. 6701 BAMMEL TX
2016-11-07 346-763-3XXX 3000–3999Assigned AERIAL COMMUNICATIONS, INC. 6701 BAMMEL TX
2016-11-07 346-763-4XXX 4000–4999Assigned AERIAL COMMUNICATIONS, INC. 6701 BAMMEL TX
2016-11-07 346-763-5XXX 5000–5999Assigned AERIAL COMMUNICATIONS, INC. 6701 BAMMEL TX
2016-11-07 346-763-6XXX 6000–6999Assigned AERIAL COMMUNICATIONS, INC. 6701 BAMMEL TX
2016-11-07 346-763-7XXX 7000–7999Assigned AERIAL COMMUNICATIONS, INC. 6701 BAMMEL TX
2016-11-07 346-763-8XXX 8000–8999Assigned AERIAL COMMUNICATIONS, INC. 6701 BAMMEL TX
2016-11-07 346-763-9XXX 9000–9999Assigned AERIAL COMMUNICATIONS, INC. 6701 BAMMEL TX
2016-11-03 346-719-0XXX 0000–0999Assigned AERIAL COMMUNICATIONS, INC. 6701 HOUSTON TX
2016-11-03 346-719-1XXX 1000–1999Assigned AERIAL COMMUNICATIONS, INC. 6701 HOUSTON TX
2016-11-03 346-719-2XXX 2000–2999Assigned AERIAL COMMUNICATIONS, INC. 6701 HOUSTON 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.