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
2019-08-20 346-390-3XXX 3000–3999Assigned AERIAL COMMUNICATIONS, INC. 6701 BARKER TX
2019-08-20 346-390-4XXX 4000–4999Assigned AERIAL COMMUNICATIONS, INC. 6701 BARKER TX
2019-08-20 346-390-7XXX 7000–7999Assigned AERIAL COMMUNICATIONS, INC. 6701 BARKER TX
2019-08-20 346-390-8XXX 8000–8999Assigned AERIAL COMMUNICATIONS, INC. 6701 BARKER TX
2019-08-20 346-390-9XXX 9000–9999Assigned METROPCS, INC. 5562 BARKER TX
2019-08-20 346-391-0XXX 0000–0999Assigned AERIAL COMMUNICATIONS, INC. 6701 SUGAR LAND TX
2019-08-20 346-391-1XXX 1000–1999Assigned AERIAL COMMUNICATIONS, INC. 6701 SUGAR LAND TX
2019-08-20 346-391-2XXX 2000–2999Assigned AERIAL COMMUNICATIONS, INC. 6701 SUGAR LAND TX
2019-08-20 346-391-3XXX 3000–3999Assigned AERIAL COMMUNICATIONS, INC. 6701 SUGAR LAND TX
2019-08-20 346-391-9XXX 9000–9999Assigned METROPCS, INC. 5562 SUGAR LAND TX
2019-08-20 346-392-0XXX 0000–0999Assigned AERIAL COMMUNICATIONS, INC. 6701 SATSUMA TX
2019-08-20 346-392-1XXX 1000–1999Assigned AERIAL COMMUNICATIONS, INC. 6701 SATSUMA TX
2019-08-20 346-392-2XXX 2000–2999Assigned AERIAL COMMUNICATIONS, INC. 6701 SATSUMA TX
2019-08-20 346-392-3XXX 3000–3999Assigned AERIAL COMMUNICATIONS, INC. 6701 SATSUMA TX
2019-08-20 346-392-4XXX 4000–4999Assigned AERIAL COMMUNICATIONS, INC. 6701 SATSUMA TX
2019-08-20 346-392-5XXX 5000–5999Assigned AERIAL COMMUNICATIONS, INC. 6701 SATSUMA TX
2019-08-20 346-392-9XXX 9000–9999Assigned METROPCS, INC. 5562 SATSUMA TX
2019-08-20 346-393-0XXX 0000–0999Assigned AERIAL COMMUNICATIONS, INC. 6701 STAFFORD TX
2019-08-20 346-393-1XXX 1000–1999Assigned AERIAL COMMUNICATIONS, INC. 6701 STAFFORD TX
2019-08-20 346-393-9XXX 9000–9999Assigned METROPCS, INC. 5562 STAFFORD TX
2019-08-20 346-394-0XXX 0000–0999Assigned AERIAL COMMUNICATIONS, INC. 6701 CHANNELVW TX
2019-08-20 346-394-1XXX 1000–1999Assigned AERIAL COMMUNICATIONS, INC. 6701 CHANNELVW TX
2019-08-20 346-394-2XXX 2000–2999Assigned AERIAL COMMUNICATIONS, INC. 6701 CHANNELVW TX
2019-08-20 346-394-3XXX 3000–3999Assigned AERIAL COMMUNICATIONS, INC. 6701 CHANNELVW TX
2019-08-20 346-394-4XXX 4000–4999Assigned AERIAL COMMUNICATIONS, INC. 6701 CHANNELVW TX
2019-08-20 346-394-5XXX 5000–5999Assigned AERIAL COMMUNICATIONS, INC. 6701 CHANNELVW TX
2019-08-20 346-394-9XXX 9000–9999Assigned METROPCS, INC. 5562 CHANNELVW TX
2019-08-14 346-329-6XXX 6000–6999Assigned AERIAL COMMUNICATIONS, INC. 6701 BAMMEL TX
2019-08-14 346-371-5XXX 5000–5999Assigned AERIAL COMMUNICATIONS, INC. 6701 STAFFORD TX
2019-08-14 346-373-7XXX 7000–7999Assigned AERIAL COMMUNICATIONS, INC. 6701 CHANNELVW TX
2019-08-14 346-373-8XXX 8000–8999Assigned AERIAL COMMUNICATIONS, INC. 6701 CHANNELVW TX
2019-08-14 346-375-3XXX 3000–3999Assigned AERIAL COMMUNICATIONS, INC. 6701 SUGAR LAND TX
2019-08-14 346-376-8XXX 8000–8999Assigned AERIAL COMMUNICATIONS, INC. 6701 SATSUMA TX
2019-08-14 346-376-9XXX 9000–9999Assigned AERIAL COMMUNICATIONS, INC. 6701 SATSUMA TX
2019-08-13 346-366-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LANGHAMCRK TX
2019-08-13 346-366-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LANGHAMCRK TX
2019-08-13 346-373-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHANNELVW TX
2019-08-13 346-373-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 CHANNELVW TX
2019-08-13 346-758-0XXX 0000–0999Assigned AERIAL COMMUNICATIONS, INC. 6701 RICHMNRNBG TX
2019-08-13 346-877-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 DEER PARK TX
2019-08-08 346-397-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 HOUSTON TX
2019-07-30 346-361-3XXX 3000–3999Assigned TELNYX LLC 073H SEABROOK TX
2019-07-30 346-376-0XXX 0000–0999Assigned TELNYX LLC 073H SATSUMA TX
2019-07-30 346-908-9XXX 9000–9999Assigned TELNYX LLC 073H SMITHERSLK TX
2019-07-29 346-389-1XXX 1000–1999Assigned COMCAST IP PHONE, LLC 318J BEACH CITY TX
2019-07-25 346-371-4XXX 4000–4999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F STAFFORD TX
2019-07-23 346-388-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F HOUSTON TX
2019-07-23 346-388-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F HOUSTON TX
2019-07-23 346-388-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F HOUSTON TX
2019-07-23 346-388-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F 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.