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 419
LEVEL 3 COMMUNICATIONS, LLC - OH 127
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
2023-03-09 419-441-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 WATERVILLE OH
2023-03-09 419-801-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 LUCKEY OH
2021-08-24 419-582-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 YORKSHIRE OH
2021-08-05 419-915-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 COLUMBSGRV OH
2020-11-18 419-278-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 DESHLER OH
2020-04-24 419-220-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 ARCHBOLD OH
2020-03-24 419-485-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 MONTPELIER OH
2018-09-12 419-505-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 RISINGSUN OH
2018-09-05 419-845-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 CALEDONIA OH
2018-08-20 419-216-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 MONTPELIER OH
2018-08-02 419-718-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 CARDINGTON OH
2018-08-02 419-719-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 BELLVILLE OH
2016-12-30 419-871-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 SANDUSKY OH
2015-05-14 419-954-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 NEW BREMEN OH
2014-10-01 419-392-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 TOLEDO OH
2014-07-01 419-330-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 WAUSEON OH
2014-03-24 419-402-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 SWANTON OH
2014-03-24 419-837-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 STONYRIDGE OH
2014-03-20 419-731-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 UPSANDUSKY OH
2014-03-19 419-272-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 EDON OH
2014-03-19 419-391-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 HAMLER OH
2014-03-19 419-655-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 CYGNET OH
2014-03-19 419-716-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 BLOOMDALE OH
2014-03-19 419-762-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 FLORIDA OH
2014-03-18 419-219-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 JEWELL OH
2014-03-18 419-390-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 LYONS OH
2014-03-18 419-401-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 METAMORA OH
2014-03-18 419-608-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 HOLGATE OH
2014-03-18 419-613-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 LIBERTYCTR OH
2014-03-18 419-760-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 PORTAGE OH
2014-03-18 419-761-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 MOLINE OH
2014-02-12 419-299-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 VAN BUREN OH
2014-01-16 419-284-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 LYKENS OH
2014-01-16 419-985-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 NEWWNCHSTR OH
2013-10-25 419-763-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 COLDWATER OH
2013-09-17 419-988-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 CHATFIELD OH
2013-09-16 419-641-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 CAIRO OH
2013-09-16 419-667-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 VENEDOCIA OH
2013-09-16 419-757-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 ALGER OH
2013-09-16 419-780-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 WAYNESFLD OH
2013-09-16 419-909-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 ELIDA OH
2013-01-30 419-419-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 BOWLNGGREN OH
2013-01-09 419-956-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 DEFIANCE OH
2011-03-30 419-469-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 TOLEDO OH
2011-03-18 419-900-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 PEMBERVL OH
2011-03-08 419-518-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 HICKSVILLE OH
2011-03-07 419-285-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 PUT IN BAY OH
2011-03-04 419-434-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 FINDLAY OH
2011-02-24 419-707-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 OAK HARBOR OH
2011-02-24 419-785-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 DEFIANCE OH

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.