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
2019-06-13 346-500-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 HOUSTON TX
2019-06-13 346-500-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 HOUSTON TX
2019-06-10 346-364-7XXX 7000–7999Assigned CSC WIRELESS, LLC 425J CLEVELAND TX
2019-06-06 346-365-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J BARKER TX
2019-06-06 346-379-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J CYPRESS TX
2019-05-31 346-345-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HUMBLE TX
2019-05-31 346-345-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HUMBLE TX
2019-05-31 346-374-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HSTNSUBURB TX
2019-05-31 346-374-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HSTNSUBURB TX
2019-05-31 346-378-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HSTNSUBURB TX
2019-05-29 346-386-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SPRING TX
2019-05-29 346-386-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SPRING TX
2019-05-29 346-386-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 SPRING TX
2019-05-21 346-377-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LANGHAMCRK TX
2019-05-21 346-377-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LANGHAMCRK TX
2019-05-21 346-465-7XXX 7000–7999Assigned FRACTEL, LLC 965H LANGHAMCRK TX
2019-05-21 346-529-3XXX 3000–3999Assigned FRACTEL, LLC 965H HSTNSUBURB TX
2019-05-21 346-529-9XXX 9000–9999Assigned FRACTEL, LLC 965H HSTNSUBURB TX
2019-05-21 346-732-5XXX 5000–5999Assigned FRACTEL, LLC 965H CYPRESS TX
2019-05-21 346-758-6XXX 6000–6999Assigned FRACTEL, LLC 965H RICHMNRNBG TX
2019-05-21 346-766-3XXX 3000–3999Assigned FRACTEL, LLC 965H HOUSTON TX
2019-05-21 346-766-6XXX 6000–6999Assigned FRACTEL, LLC 965H HOUSTON TX
2019-05-21 346-842-5XXX 5000–5999Assigned FRACTEL, LLC 965H HUMBLE TX
2019-05-21 346-877-7XXX 7000–7999Assigned FRACTEL, LLC 965H DEER PARK TX
2019-05-21 346-988-8XXX 8000–8999Assigned FRACTEL, LLC 965H CLEVELAND TX
2019-05-20 346-383-0XXX 0000–0999Assigned AERIAL COMMUNICATIONS, INC. 6701 HOUSTON TX
2019-05-20 346-383-1XXX 1000–1999Assigned AERIAL COMMUNICATIONS, INC. 6701 HOUSTON TX
2019-05-20 346-383-2XXX 2000–2999Assigned AERIAL COMMUNICATIONS, INC. 6701 HOUSTON TX
2019-05-20 346-383-4XXX 4000–4999Assigned AERIAL COMMUNICATIONS, INC. 6701 HOUSTON TX
2019-05-20 346-383-5XXX 5000–5999Assigned AERIAL COMMUNICATIONS, INC. 6701 HOUSTON TX
2019-05-20 346-383-6XXX 6000–6999Assigned AERIAL COMMUNICATIONS, INC. 6701 HOUSTON TX
2019-05-20 346-383-7XXX 7000–7999Assigned AERIAL COMMUNICATIONS, INC. 6701 HOUSTON TX
2019-05-20 346-383-8XXX 8000–8999Assigned AERIAL COMMUNICATIONS, INC. 6701 HOUSTON TX
2019-05-20 346-383-9XXX 9000–9999Assigned AERIAL COMMUNICATIONS, INC. 6701 HOUSTON TX
2019-05-20 346-500-5XXX 5000–5999Assigned ONVOY, LLC - TX 903C HOUSTON TX
2019-05-20 346-500-6XXX 6000–6999Assigned ONVOY, LLC - TX 903C HOUSTON TX
2019-05-10 346-348-8XXX 8000–8999Assigned AERIAL COMMUNICATIONS, INC. 6701 HOUSTON TX
2019-05-10 346-354-3XXX 3000–3999Assigned AERIAL COMMUNICATIONS, INC. 6701 HOUSTON TX
2019-05-10 346-446-0XXX 0000–0999Assigned AERIAL COMMUNICATIONS, INC. 6701 HOUSTON TX
2019-05-10 346-446-2XXX 2000–2999Assigned AERIAL COMMUNICATIONS, INC. 6701 HOUSTON TX
2019-05-10 346-446-3XXX 3000–3999Assigned AERIAL COMMUNICATIONS, INC. 6701 HOUSTON TX
2019-05-10 346-446-7XXX 7000–7999Assigned AERIAL COMMUNICATIONS, INC. 6701 HOUSTON TX
2019-05-10 346-446-8XXX 8000–8999Assigned AERIAL COMMUNICATIONS, INC. 6701 HOUSTON TX
2019-05-10 346-446-9XXX 9000–9999Assigned AERIAL COMMUNICATIONS, INC. 6701 HOUSTON TX
2019-05-10 346-500-8XXX 8000–8999Assigned AERIAL COMMUNICATIONS, INC. 6701 HOUSTON TX
2019-05-10 346-500-9XXX 9000–9999Assigned AERIAL COMMUNICATIONS, INC. 6701 HOUSTON TX
2019-05-10 346-610-0XXX 0000–0999Assigned AERIAL COMMUNICATIONS, INC. 6701 HOUSTON TX
2019-05-10 346-610-2XXX 2000–2999Assigned AERIAL COMMUNICATIONS, INC. 6701 HOUSTON TX
2019-05-10 346-610-3XXX 3000–3999Assigned AERIAL COMMUNICATIONS, INC. 6701 HOUSTON TX
2019-05-10 346-610-4XXX 4000–4999Assigned AERIAL COMMUNICATIONS, INC. 6701 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.