NumberResearch Membership · Data 09/19/2026

Recent thousands-block assignments

0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/19/2026

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, all time — NPA 254
LEVEL 3 COMMUNICATIONS, LLC - TX 128
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
2025-11-14 254-461-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 WACO TX
2025-11-14 254-461-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 WACO TX
2025-11-14 254-461-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 WACO TX
2025-11-14 254-461-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 WACO TX
2025-11-14 254-461-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 WACO TX
2025-11-14 254-461-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 WACO TX
2025-11-14 254-461-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 WACO TX
2024-01-30 254-403-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 DE LEON TX
2023-05-24 254-362-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 WACO TX
2022-07-14 254-343-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 WACO TX
2022-02-24 254-362-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 WACO TX
2021-10-20 254-651-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 WACO TX
2021-10-13 254-434-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 STEPHENVL TX
2020-03-31 254-373-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 WACO TX
2020-03-31 254-373-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 WACO TX
2020-03-31 254-373-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 WACO TX
2020-03-31 254-373-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 WACO TX
2020-03-31 254-373-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 WACO TX
2020-03-31 254-373-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 WACO TX
2020-03-31 254-373-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 WACO TX
2020-03-31 254-373-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 WACO TX
2020-03-31 254-373-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 WACO TX
2020-03-31 254-373-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 WACO TX
2019-08-28 254-342-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 WACO TX
2019-05-22 254-735-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 CISCO TX
2017-05-02 254-269-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 GLEN ROSE TX
2016-01-28 254-262-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 WACO TX
2016-01-21 254-679-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 GATESVILLE TX
2015-11-18 254-312-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 KILLEEN TX
2015-09-04 254-406-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 FORT HOOD TX
2015-07-22 254-405-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 WACO TX
2015-07-22 254-727-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 TEMPLE TX
2015-04-16 254-845-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 SO BOSQUE TX
2014-12-23 254-533-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 MALONE TX
2014-10-30 254-870-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 WACO TX
2014-09-29 254-781-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 KILLEEN TX
2014-08-28 254-267-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 RANGER TX
2014-05-15 254-983-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 HEIDENHEMR TX
2014-05-09 254-385-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 THORNTON TX
2014-05-09 254-487-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 FLAT TX
2014-05-05 254-494-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 TURNERSVL TX
2014-05-05 254-597-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 CRANFILSGP TX
2014-05-05 254-982-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 LITTLE RIV TX
2014-05-05 254-984-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 OENAVILLE TX
2014-05-05 254-985-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 ZABCIKVL TX
2014-04-30 254-593-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 BUCKHOLTS TX
2014-04-30 254-746-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 BREMOND TX
2014-04-24 254-445-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 DUBLIN TX
2014-04-23 254-249-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 HOLLAND TX
2014-04-23 254-277-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 MOFFAT TX

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/19/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.