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
2021-10-26 737-386-3XXX 3000–3999Assigned FRACTEL, LLC 965H LAMPASAS TX
2021-10-25 737-290-6XXX 6000–6999Assigned ONVOY SPECTRUM, LLC 624H GEORGETOWN TX
2021-10-25 737-290-7XXX 7000–7999Assigned ONVOY SPECTRUM, LLC 624H GEORGETOWN TX
2021-10-22 737-308-0XXX 0000–0999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 AUSTIN TX
2021-10-22 737-308-1XXX 1000–1999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 AUSTIN TX
2021-10-22 737-308-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 AUSTIN TX
2021-10-22 737-308-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 AUSTIN TX
2021-10-22 737-308-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 AUSTIN TX
2021-10-22 737-308-5XXX 5000–5999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 AUSTIN TX
2021-10-22 737-308-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 AUSTIN TX
2021-10-22 737-308-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 AUSTIN TX
2021-10-22 737-308-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 AUSTIN TX
2021-10-22 737-308-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 AUSTIN TX
2021-10-21 737-707-1XXX 1000–1999Assigned ONVOY, LLC - TX 903C AUSTIN TX
2021-10-21 737-707-2XXX 2000–2999Assigned ONVOY, LLC - TX 903C AUSTIN TX
2021-10-20 737-375-7XXX 7000–7999Assigned COMMIO, LLC 939H ROCKDALE TX
2021-10-20 737-375-8XXX 8000–8999Assigned COMMIO, LLC 939H ROCKDALE TX
2021-10-18 737-304-1XXX 1000–1999Assigned ONVOY SPECTRUM, LLC 624H AUSTIN TX
2021-10-18 737-304-2XXX 2000–2999Assigned ONVOY SPECTRUM, LLC 624H AUSTIN TX
2021-10-18 737-304-3XXX 3000–3999Assigned ONVOY SPECTRUM, LLC 624H AUSTIN TX
2021-10-18 737-304-4XXX 4000–4999Assigned ONVOY SPECTRUM, LLC 624H AUSTIN TX
2021-10-18 737-304-5XXX 5000–5999Assigned ONVOY SPECTRUM, LLC 624H AUSTIN TX
2021-10-18 737-306-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HUTTO TX
2021-10-18 737-306-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 HUTTO TX
2021-10-18 737-788-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BURNET TX
2021-10-13 737-766-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 LEANDER TX
2021-10-12 737-294-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 BASTROP TX
2021-10-06 737-707-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - TX 7138 AUSTIN TX
2021-10-05 737-305-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BUDA TX
2021-10-05 737-305-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 BUDA TX
2021-09-29 737-301-4XXX 4000–4999Assigned ONVOY, LLC - TX 903C AUSTIN TX
2021-09-29 737-301-5XXX 5000–5999Assigned ONVOY, LLC - TX 903C AUSTIN TX
2021-09-29 737-301-6XXX 6000–6999Assigned ONVOY, LLC - TX 903C AUSTIN TX
2021-09-29 737-307-4XXX 4000–4999Assigned ONVOY, LLC - TX 903C BERTRAM TX
2021-09-27 737-282-5XXX 5000–5999Assigned ONVOY, LLC - TX 903C DALE/LTNSP TX
2021-09-27 737-344-8XXX 8000–8999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 SAN MARCOS TX
2021-09-23 737-707-0XXX 0000–0999Assigned PEERLESS NETWORK OF TEXAS, LLC - TX 177F AUSTIN TX
2021-09-22 737-295-0XXX 0000–0999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F AUSTIN TX
2021-09-22 737-295-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F AUSTIN TX
2021-09-22 737-295-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F AUSTIN TX
2021-09-22 737-295-5XXX 5000–5999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F AUSTIN TX
2021-09-22 737-295-7XXX 7000–7999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F AUSTIN TX
2021-09-22 737-295-8XXX 8000–8999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F AUSTIN TX
2021-09-22 737-295-9XXX 9000–9999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F AUSTIN TX
2021-09-22 737-301-1XXX 1000–1999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F AUSTIN TX
2021-09-22 737-301-2XXX 2000–2999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F AUSTIN TX
2021-09-22 737-301-3XXX 3000–3999Assigned BANDWIDTH.COM CLEC, LLC - TX 004F AUSTIN TX
2021-09-09 737-298-0XXX 0000–0999Assigned T-MOBILE USA, INC. 6529 LEANDER TX
2021-09-09 737-298-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 LEANDER TX
2021-09-09 737-298-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 LEANDER 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.