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 850
LEVEL 3 COMMUNICATIONS, LLC - FL 174
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
2026-03-03 850-440-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 TYNDALLAFB FL
2026-03-03 850-447-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 BRISTOL FL
2026-03-03 850-451-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 ALTHA FL
2025-09-19 850-734-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 EAST POINT FL
2025-09-17 850-568-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 WEWAHITCHK FL
2024-08-28 850-340-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 PORTST JOE FL
2024-08-28 850-731-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 THEBEACHES FL
2023-02-06 850-793-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 CHATAHOCHE FL
2022-12-12 850-242-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 GREENVILLE FL
2022-12-12 850-548-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 WESTVILLE FL
2022-12-12 850-813-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 PONCE LEON FL
2022-12-12 850-923-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 GLENDALE FL
2022-12-12 850-956-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 REYNOLDSHL FL
2022-12-12 850-984-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 ST MARKS FL
2022-12-09 850-342-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 MONTICELLO FL
2022-12-09 850-953-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 FREEPORT FL
2022-04-27 850-690-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 KEATON BCH FL
2021-11-04 850-352-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 COTTONDALE FL
2021-11-04 850-498-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 QUINCY FL
2021-02-16 850-214-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 BLOUNTSTN FL
2021-02-16 850-295-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 PERRY FL
2020-08-14 850-804-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 PANAMACITY FL
2020-03-13 850-804-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 PANAMACITY FL
2020-03-13 850-804-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 PANAMACITY FL
2020-03-13 850-804-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 PANAMACITY FL
2020-03-13 850-804-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 PANAMACITY FL
2020-03-13 850-804-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 PANAMACITY FL
2019-10-24 850-660-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 SANROSABCH FL
2019-06-14 850-613-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 SHALIMAR FL
2019-04-04 850-614-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 BONIFAY FL
2018-10-10 850-679-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 CANTONMENT FL
2018-03-14 850-704-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 PANAMACITY FL
2017-12-11 850-213-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 SEAGRV BCH FL
2017-11-06 850-604-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 MOLINO FL
2017-11-06 850-652-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 LAURELHILL FL
2017-11-06 850-667-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 PAXTON FL
2017-06-20 850-541-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 PANAMACITY FL
2017-05-24 850-480-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 PENSACOLA FL
2016-11-30 850-777-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 PENSACOLA FL
2016-08-17 850-815-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 TALLAHASSE FL
2016-07-26 850-600-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 CHIPLEY FL
2016-07-08 850-541-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 PANAMACITY FL
2016-06-23 850-317-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 MARIANNA FL
2016-03-29 850-635-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 DFUNIAKSPG FL
2016-02-19 850-666-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 TALLAHASSE FL
2015-11-05 850-812-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 FTWALTNBCH FL
2015-10-27 850-252-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 PANAMACITY FL
2015-07-23 850-354-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 TALLAHASSE FL
2015-07-17 850-357-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 FTWALTNBCH FL
2015-04-07 850-257-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 PANAMACITY FL

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.