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 469
LEVEL 3 COMMUNICATIONS, LLC - TX 324
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
2020-10-14 469-581-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 PRINCETON TX
2020-09-14 469-946-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 LEWISVILLE TX
2020-08-03 469-851-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 DALLAS TX
2020-08-03 469-851-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 DALLAS TX
2020-07-22 469-830-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 LEWISVILLE TX
2020-07-15 469-839-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 DALLAS TX
2020-04-03 469-691-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 CARROLLTON TX
2020-03-24 469-691-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 CARROLLTON TX
2019-12-12 469-599-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 IRVING TX
2019-12-12 469-749-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 DALLAS TX
2019-12-12 469-749-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 DALLAS TX
2019-11-27 469-669-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 CARROLLTON TX
2019-09-18 469-397-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 DE SOTO TX
2019-09-10 469-676-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 DALLAS TX
2019-09-10 469-676-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 DALLAS TX
2019-09-10 469-676-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 DALLAS TX
2019-07-22 469-746-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 FERRIS TX
2019-06-26 469-627-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 DALLAS TX
2019-06-05 469-663-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 ALLEN TX
2019-04-17 469-722-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 DALLAS TX
2019-04-17 469-722-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 DALLAS TX
2019-01-02 469-501-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 DALLAS TX
2019-01-02 469-501-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 DALLAS TX
2018-11-21 469-365-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 FRISCO TX
2018-11-16 469-498-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 DALLAS TX
2018-11-16 469-498-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 DALLAS TX
2018-06-15 469-489-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 WILMER TX
2018-01-04 469-391-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 DALLAS TX
2018-01-04 469-391-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 DALLAS TX
2017-10-13 469-334-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 DALLAS TX
2017-10-13 469-868-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 DALLAS TX
2017-10-13 469-868-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 DALLAS TX
2017-10-13 469-868-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 DALLAS TX
2017-10-13 469-868-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 DALLAS TX
2017-10-13 469-868-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 DALLAS TX
2017-09-08 469-974-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 PLANO TX
2017-08-31 469-625-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 MCKINNEY TX
2016-11-23 469-912-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 IRVING TX
2016-10-31 469-929-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 PLANO TX
2016-09-22 469-717-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 JOSEPHINE TX
2016-09-22 469-908-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 COMBINE TX
2016-07-08 469-473-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 FRISCO TX
2016-06-02 469-634-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 MCKINNEY TX
2016-05-25 469-466-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 DALLAS TX
2016-05-25 469-466-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 DALLAS TX
2016-04-12 469-925-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 PLANO TX
2016-03-11 469-421-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 ALLEN TX
2016-03-03 469-299-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 IRVING TX
2016-02-22 469-917-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 DALLAS TX
2016-02-22 469-917-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - TX 6114 DALLAS 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.