NumberResearch Membership · Data 09/20/2026

Recent thousands-block assignments

0 blocks assigned in the last 30 days · from the daily NANPA thousands-block report, 09/20/2026

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 607
LEVEL 3 COMMUNICATIONS, LLC - NY 117
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
2025-11-06 607-837-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 HANCOCK NY
2024-09-13 607-327-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 ITHACA NY
2023-08-23 607-252-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 ITHACA NY
2023-02-08 607-362-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 WORCESTER NY
2022-10-04 607-408-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 BINGHAMTON NY
2022-08-17 607-645-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 ITHACA NY
2022-05-23 607-472-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 BINGHAMTON NY
2022-05-23 607-472-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 BINGHAMTON NY
2022-05-23 607-472-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 BINGHAMTON NY
2021-04-02 607-477-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 APALACHIN NY
2020-06-15 607-529-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 CHEMUNG NY
2019-05-28 607-371-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NORWICH NY
2017-09-18 607-352-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 BINGHAMTON NY
2017-01-31 607-930-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 BINGHAMTON NY
2016-12-28 607-204-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 CHENANGBDG NY
2016-12-28 607-417-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 HAWLEYTON NY
2016-07-29 607-298-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 DEPOSIT NY
2016-07-29 607-399-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 HARPURSVL NY
2016-07-29 607-499-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 WINDSOR NY
2016-07-28 607-208-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 AFTON NY
2016-03-15 607-300-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 AVOCA NY
2016-03-15 607-305-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 EDMESTON NY
2015-06-01 607-930-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 BINGHAMTON NY
2014-10-22 607-230-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 FRANKLIN NY
2014-10-22 607-284-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 WAYNE NY
2014-10-22 607-320-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 BAINBRIDGE NY
2014-10-22 607-486-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 CINCINNTUS NY
2014-10-22 607-638-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 SCHENEVUS NY
2014-10-22 607-657-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 BERKSHIRE NY
2014-10-22 607-703-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 WATKISGLEN NY
2014-10-21 607-202-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 SIDNEY NY
2014-10-21 607-263-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 MORRIS NY
2014-10-21 607-290-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 ROSCOE NY
2014-10-21 607-488-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 NEW BERLIN NY
2014-10-21 607-510-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 WALTON NY
2014-10-21 607-634-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 WHITNEY PT NY
2014-10-21 607-647-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 MCDONOUGH NY
2014-10-21 607-867-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 MOUNTUPTON NY
2014-10-17 607-278-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 DAVENPORT NY
2014-10-17 607-286-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 MILFORD NY
2014-10-17 607-293-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 HARTWICK NY
2014-10-17 607-326-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 ROXBURY NY
2014-10-17 607-538-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 HOBART NY
2014-10-17 607-988-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 OTEGO NY
2014-10-16 607-200-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 SLATEVLSPG NY
2014-10-16 607-247-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 ALFRED NY
2014-10-16 607-260-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 ANDOVER NY
2014-10-16 607-270-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 ALMOND NY
2014-10-16 607-282-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 COOPERSTN NY
2014-10-16 607-295-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - NY 4006 ARKPORT NY

Source: NANPA Thousands Block Assignment Report (All Regions, Public), file date 09/20/2026 — Tier A primary source, refreshed on every import. Viewing is free; bulk downloads require a membership.