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
2019-10-08 737-261-2XXX 2000–2999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 AUSTIN TX
2019-10-08 737-261-3XXX 3000–3999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 AUSTIN TX
2019-10-08 737-261-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 AUSTIN TX
2019-10-08 737-261-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 AUSTIN TX
2019-10-08 737-261-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 AUSTIN TX
2019-10-08 737-261-7XXX 7000–7999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 AUSTIN TX
2019-10-08 737-261-8XXX 8000–8999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 AUSTIN TX
2019-10-07 737-356-4XXX 4000–4999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 GEORGETOWN TX
2019-10-07 737-356-5XXX 5000–5999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 GEORGETOWN TX
2019-10-07 737-356-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 GEORGETOWN TX
2019-10-02 737-259-0XXX 0000–0999Assigned PEERLESS NETWORK OF TEXAS, LLC - TX 177F HUTTO TX
2019-10-01 737-245-6XXX 6000–6999Assigned ONVOY, LLC - TX 903C GEORGETOWN TX
2019-09-25 737-252-3XXX 3000–3999Assigned ONVOY, LLC - TX 903C LIBERTY HL TX
2019-09-25 737-252-4XXX 4000–4999Assigned ONVOY, LLC - TX 903C LIBERTY HL TX
2019-09-25 737-252-5XXX 5000–5999Assigned ONVOY, LLC - TX 903C LIBERTY HL TX
2019-09-25 737-252-6XXX 6000–6999Assigned ONVOY, LLC - TX 903C LIBERTY HL TX
2019-09-23 737-259-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 HUTTO TX
2019-09-18 737-243-8XXX 8000–8999Assigned ONVOY, LLC - TX 903C AUSTIN TX
2019-09-18 737-243-9XXX 9000–9999Assigned ONVOY, LLC - TX 903C AUSTIN TX
2019-09-18 737-249-6XXX 6000–6999Assigned ONVOY, LLC - TX 903C AUSTIN TX
2019-09-18 737-249-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AUSTIN TX
2019-09-18 737-249-9XXX 9000–9999Assigned ONVOY, LLC - TX 903C AUSTIN TX
2019-09-18 737-500-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 BASTROP TX
2019-09-18 737-500-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 BASTROP TX
2019-09-18 737-500-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 BASTROP TX
2019-09-18 737-500-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 BASTROP TX
2019-09-18 737-610-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AUSTIN TX
2019-09-11 737-258-2XXX 2000–2999Assigned ONVOY, LLC - TX 903C MILANO TX
2019-09-11 737-500-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 BASTROP TX
2019-09-11 737-610-7XXX 7000–7999Assigned AUSTIN BESTLINE COMPANY 7551 AUSTIN TX
2019-09-10 737-244-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F TAYLOR TX
2019-09-10 737-757-9XXX 9000–9999Assigned TWC IP ENABLED SERVICES, LLC 793K LEANDER TX
2019-09-04 737-373-9XXX 9000–9999Assigned PEERLESS NETWORK OF TEXAS, LLC - TX 177F SAN MARCOS TX
2019-09-03 737-257-2XXX 2000–2999Assigned TELNYX LLC 073H SANGABRIEL TX
2019-09-03 737-520-2XXX 2000–2999Assigned TELNYX LLC 073H FENTRESS TX
2019-09-03 737-980-2XXX 2000–2999Assigned TELNYX LLC 073H COUPLAND TX
2019-08-15 737-238-4XXX 4000–4999Assigned PEERLESS NETWORK OF TEXAS, LLC - TX 177F BERTRAM TX
2019-08-14 737-610-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 AUSTIN TX
2019-08-14 737-900-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 AUSTIN TX
2019-08-14 737-900-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 AUSTIN TX
2019-08-13 737-260-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 DRIPPNGSPG TX
2019-08-13 737-881-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 BASTROP TX
2019-08-05 737-465-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AUSTIN TX
2019-08-05 737-465-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AUSTIN TX
2019-08-05 737-465-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AUSTIN TX
2019-08-05 737-465-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AUSTIN TX
2019-08-05 737-465-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AUSTIN TX
2019-08-05 737-465-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AUSTIN TX
2019-08-01 737-404-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 KYLE TX
2019-07-29 737-258-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 MILANO 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.