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
2023-12-12 737-367-1XXX 1000–1999Assigned ONVOY, LLC - TX 903C AUSTIN TX
2023-12-12 737-367-2XXX 2000–2999Assigned ONVOY, LLC - TX 903C AUSTIN TX
2023-12-12 737-367-3XXX 3000–3999Assigned ONVOY, LLC - TX 903C AUSTIN TX
2023-12-12 737-368-0XXX 0000–0999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AUSTIN TX
2023-12-12 737-368-1XXX 1000–1999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AUSTIN TX
2023-12-12 737-368-2XXX 2000–2999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AUSTIN TX
2023-12-12 737-368-3XXX 3000–3999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AUSTIN TX
2023-12-12 737-368-4XXX 4000–4999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AUSTIN TX
2023-12-12 737-368-5XXX 5000–5999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AUSTIN TX
2023-12-12 737-368-6XXX 6000–6999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AUSTIN TX
2023-12-12 737-368-7XXX 7000–7999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AUSTIN TX
2023-12-12 737-368-8XXX 8000–8999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AUSTIN TX
2023-12-12 737-368-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 AUSTIN TX
2023-12-12 737-762-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 SMITHVILLE TX
2023-11-30 737-305-3XXX 3000–3999Assigned VONAGE AMERICA LLC 197D BUDA TX
2023-11-30 737-758-7XXX 7000–7999Assigned VONAGE AMERICA LLC 197D KEMPNER TX
2023-11-28 737-325-6XXX 6000–6999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 AUSTIN TX
2023-11-28 737-325-7XXX 7000–7999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 AUSTIN TX
2023-11-28 737-325-9XXX 9000–9999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 AUSTIN TX
2023-11-27 737-316-9XXX 9000–9999Assigned PEERLESS NETWORK OF TEXAS, LLC - TX 177F WIMBERLEY TX
2023-11-27 737-427-9XXX 9000–9999Assigned PEERLESS NETWORK OF TEXAS, LLC - TX 177F MCDADE TX
2023-11-22 737-365-2XXX 2000–2999Assigned VONAGE AMERICA LLC 197D BURNET TX
2023-11-14 737-355-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 LOCKHART TX
2023-11-07 737-363-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 AUSTIN TX
2023-11-07 737-363-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 AUSTIN TX
2023-11-07 737-363-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 AUSTIN TX
2023-11-07 737-363-8XXX 8000–8999Assigned T-MOBILE USA, INC. 6529 AUSTIN TX
2023-11-07 737-363-9XXX 9000–9999Assigned T-MOBILE USA, INC. 6529 AUSTIN TX
2023-11-03 737-362-9XXX 9000–9999Assigned NEW CINGULAR WIRELESS PCS, LLC - IL 6534 MARTINDALE TX
2023-11-02 737-325-4XXX 4000–4999Assigned NUSO, LLC 732J AUSTIN TX
2023-11-02 737-325-5XXX 5000–5999Assigned NUSO, LLC 732J AUSTIN TX
2023-10-31 737-347-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 BASTROP TX
2023-10-31 737-347-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 BASTROP TX
2023-10-31 737-347-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 BASTROP TX
2023-10-31 737-350-4XXX 4000–4999Assigned T-MOBILE USA, INC. 6529 BASTROP TX
2023-10-31 737-350-5XXX 5000–5999Assigned T-MOBILE USA, INC. 6529 BASTROP TX
2023-10-31 737-350-6XXX 6000–6999Assigned T-MOBILE USA, INC. 6529 BASTROP TX
2023-10-31 737-350-7XXX 7000–7999Assigned T-MOBILE USA, INC. 6529 BASTROP TX
2023-10-31 737-352-1XXX 1000–1999Assigned T-MOBILE USA, INC. 6529 BASTROP TX
2023-10-31 737-352-2XXX 2000–2999Assigned T-MOBILE USA, INC. 6529 BASTROP TX
2023-10-31 737-352-3XXX 3000–3999Assigned T-MOBILE USA, INC. 6529 BASTROP TX
2023-10-30 737-350-3XXX 3000–3999Assigned NUSO, LLC 732J BASTROP TX
2023-10-17 737-349-2XXX 2000–2999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 GEORGETOWN TX
2023-10-17 737-349-3XXX 3000–3999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 GEORGETOWN TX
2023-10-17 737-349-4XXX 4000–4999Assigned CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TX 6506 GEORGETOWN TX
2023-10-16 737-325-0XXX 0000–0999Assigned ONVOY, LLC - TX 903C AUSTIN TX
2023-10-16 737-325-1XXX 1000–1999Assigned ONVOY, LLC - TX 903C AUSTIN TX
2023-10-16 737-325-8XXX 8000–8999Assigned ONVOY, LLC - TX 903C AUSTIN TX
2023-09-29 737-339-4XXX 4000–4999Assigned ONVOY, LLC - TX 903C TAYLOR TX
2023-09-29 737-339-5XXX 5000–5999Assigned ONVOY, LLC - TX 903C TAYLOR 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.