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 234
LEVEL 3 COMMUNICATIONS, LLC - OH 72
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
2026-07-29 234-639-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 YOUNGSTOWN OH
2026-07-29 234-639-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 YOUNGSTOWN OH
2026-07-29 234-639-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 YOUNGSTOWN OH
2026-07-29 234-639-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 YOUNGSTOWN OH
2026-07-29 234-639-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 YOUNGSTOWN OH
2026-07-29 234-639-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 YOUNGSTOWN OH
2026-01-28 234-370-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 YOUNGSTOWN OH
2026-01-28 234-370-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 YOUNGSTOWN OH
2026-01-28 234-370-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 YOUNGSTOWN OH
2022-08-02 234-354-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 MILLERSBG OH
2021-06-18 234-280-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 AKRON OH
2021-01-28 234-888-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 AKRON OH
2021-01-26 234-278-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 HINCKLEY OH
2020-09-22 234-269-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 HUDSON OH
2020-08-05 234-271-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 AKRON OH
2020-04-28 234-801-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 NEWPHLDLPH OH
2020-02-11 234-888-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 AKRON OH
2018-05-02 234-246-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 RICHFIELD OH
2017-09-28 234-226-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 AKRON OH
2017-09-28 234-602-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 HUDSON OH
2017-07-11 234-226-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 AKRON OH
2017-02-01 234-863-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 AKRON OH
2016-03-29 234-719-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 YOUNGSTOWN OH
2015-12-23 234-901-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 AKRON OH
2015-11-24 234-718-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 AKRON OH
2015-07-28 234-706-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 AKRON OH
2015-05-20 234-246-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 RICHFIELD OH
2015-03-25 234-334-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 AKRON OH
2015-01-16 234-603-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 CRESTON OH
2014-10-24 234-718-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 AKRON OH
2014-10-01 234-308-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 WARREN OH
2014-07-01 234-312-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 AKRON OH
2014-05-14 234-203-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 CANTON OH
2014-04-08 234-312-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 AKRON OH
2014-03-26 234-308-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 WARREN OH
2014-03-21 234-284-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 HUDSON OH
2014-01-17 234-204-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 HOLMESVL OH
2014-01-17 234-437-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 STERLING OH
2014-01-17 234-595-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 GLENMONT OH
2014-01-17 234-635-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 KILLBUCK OH
2014-01-17 234-657-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 NASHVILLE OH
2014-01-15 234-312-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 AKRON OH
2013-12-19 234-249-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 WOOSTER OH
2013-11-19 234-428-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 NEWTON FLS OH
2013-11-13 234-562-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 NO BENTON OH
2013-10-17 234-575-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 SALEM OH
2013-07-10 234-200-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 AKRON OH
2013-03-08 234-312-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 AKRON OH
2013-03-08 234-312-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 AKRON OH
2011-07-26 234-300-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - OH 4863 NO CANTON 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.