NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

23 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 737
ONVOY, LLC - TX 14
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 4
NEW CINGULAR WIRELESS PCS, LLC - IL 2
EXIANT COMMUNICATIONS LLC 1
BANDWIDTH.COM CLEC, LLC - TX 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
2019-07-29 737-299-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 LAMPASAS TX
2019-07-25 737-465-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 AUSTIN TX
2019-07-25 737-465-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 AUSTIN TX
2019-07-25 737-465-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 AUSTIN TX
2019-07-25 737-500-0XXX 0000–0999Assigned ONVOY, LLC - TX 903C BASTROP TX
2019-07-25 737-500-5XXX 5000–5999Assigned ONVOY, LLC - TX 903C BASTROP TX
2019-07-25 737-510-5XXX 5000–5999Assigned ONVOY, LLC - TX 903C BERTRAM TX
2019-07-25 737-510-6XXX 6000–6999Assigned ONVOY, LLC - TX 903C BERTRAM TX
2019-07-25 737-520-5XXX 5000–5999Assigned ONVOY, LLC - TX 903C FENTRESS TX
2019-07-25 737-520-6XXX 6000–6999Assigned ONVOY, LLC - TX 903C FENTRESS TX
2019-07-25 737-530-5XXX 5000–5999Assigned ONVOY, LLC - TX 903C LOMETA TX
2019-07-25 737-530-6XXX 6000–6999Assigned ONVOY, LLC - TX 903C LOMETA TX
2019-07-16 737-610-5XXX 5000–5999Assigned TWC IP ENABLED SERVICES, LLC 793K AUSTIN TX
2019-07-16 737-610-6XXX 6000–6999Assigned TWC IP ENABLED SERVICES, LLC 793K AUSTIN TX
2019-07-10 737-373-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 SAN MARCOS TX
2019-07-08 737-213-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 SAN MARCOS TX
2019-06-28 737-356-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 GEORGETOWN TX
2019-06-24 737-255-0XXX 0000–0999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 AUSTIN TX
2019-06-20 737-227-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F WIMBERLEY TX
2019-06-14 737-238-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F BERTRAM TX
2019-06-10 737-255-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 AUSTIN TX
2019-06-10 737-260-8XXX 8000–8999Assigned FRONTIER SOUTHWEST INC DBA FRONTIER COMM OF TEXAS 4344 DRIPPNGSPG TX
2019-06-10 737-610-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 AUSTIN TX
2019-06-10 737-900-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 AUSTIN TX
2019-06-10 737-900-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 AUSTIN TX
2019-06-04 737-980-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F COUPLAND TX
2019-05-29 737-356-0XXX 0000–0999Assigned PEERLESS NETWORK OF TEXAS, LLC - TX 177F GEORGETOWN TX
2019-05-21 737-356-7XXX 7000–7999Assigned FRACTEL, LLC 965H GEORGETOWN TX
2019-05-21 737-356-9XXX 9000–9999Assigned FRACTEL, LLC 965H GEORGETOWN TX
2019-05-21 737-373-7XXX 7000–7999Assigned FRACTEL, LLC 965H SAN MARCOS TX
2019-05-21 737-465-8XXX 8000–8999Assigned FRACTEL, LLC 965H AUSTIN TX
2019-05-21 737-758-6XXX 6000–6999Assigned FRACTEL, LLC 965H KEMPNER TX
2019-05-21 737-766-3XXX 3000–3999Assigned FRACTEL, LLC 965H LEANDER TX
2019-05-21 737-766-6XXX 6000–6999Assigned FRACTEL, LLC 965H LEANDER TX
2019-05-15 737-225-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F ROCKDALE TX
2019-05-10 737-227-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F WIMBERLEY TX
2019-05-06 737-837-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 TAYLOR TX
2019-05-02 737-257-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F SANGABRIEL TX
2019-04-30 737-238-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F BERTRAM TX
2019-04-30 737-727-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F MCDADE TX
2019-04-29 737-260-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F DRIPPNGSPG TX
2019-04-29 737-770-7XXX 7000–7999Assigned PEERLESS NETWORK OF TEXAS, LLC - TX 177F BUDA TX
2019-04-29 737-881-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 BASTROP TX
2019-04-29 737-980-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F COUPLAND TX
2019-04-26 737-234-6XXX 6000–6999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F JARRELL TX
2019-04-24 737-255-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 AUSTIN TX
2019-04-16 737-248-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KYLE TX
2019-04-16 737-248-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 KYLE TX
2019-03-29 737-837-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 TAYLOR TX
2019-03-20 737-225-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 ROCKDALE 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.