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 989
LEVEL 3 COMMUNICATIONS, LLC - MI 164
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
2026-03-25 989-819-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 CASEVILLE MI
2023-05-23 989-491-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 MIDLAND MI
2023-02-13 989-812-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 PINCONNING MI
2023-01-10 989-320-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 SAGINAW MI
2022-11-02 989-595-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 LONG LAKE MI
2022-10-26 989-761-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 CLIFFORD MI
2022-07-14 989-934-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 ROSE CITY MI
2022-01-25 989-515-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 ONAWAY MI
2022-01-25 989-742-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 HILLMAN MI
2022-01-25 989-766-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 POSEN MI
2022-01-19 989-294-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 MIDLAND MI
2021-04-19 989-445-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 CHESANING MI
2020-08-03 989-899-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 SAGINAW MI
2020-06-19 989-728-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 HALE MI
2019-07-17 989-558-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 SAGINAW MI
2018-03-13 989-278-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 ALPENA MI
2017-09-29 989-848-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 FAIRVIEW MI
2016-01-26 989-394-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 BEAVERTON MI
2016-01-26 989-822-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 BARRYTON MI
2016-01-25 989-520-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 ALGER MI
2015-11-11 989-204-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 CRYSTAL MI
2015-11-11 989-210-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 AU GRES MI
2015-11-11 989-325-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 CARO MI
2015-11-11 989-585-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 BRANT MI
2015-04-09 989-789-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 MARLETTE MI
2015-04-03 989-203-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 VICKERYVL MI
2015-04-03 989-379-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 LACHINE MI
2015-04-03 989-473-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 LUPTON MI
2015-04-03 989-510-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 PRESCOTT MI
2015-04-03 989-514-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 STERLING MI
2015-04-03 989-724-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 HARRISVL MI
2015-04-03 989-756-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 WHITTEMORE MI
2015-04-03 989-807-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 VESTABURG MI
2015-04-03 989-857-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 REMUS MI
2015-04-03 989-943-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 MIDDLETON MI
2015-04-02 989-826-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 MIO MI
2015-04-01 989-206-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 OMER MI
2015-04-01 989-207-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 HOPE MI
2015-04-01 989-257-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 SIXTYLAKES MI
2015-04-01 989-359-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 GLADWIN MI
2015-04-01 989-469-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 SANDLK HTS MI
2015-04-01 989-476-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 PORT HOPE MI
2015-04-01 989-582-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 KINDE MI
2015-04-01 989-665-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 GAGETOWN MI
2015-04-01 989-678-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 OWENDALE MI
2015-04-01 989-683-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 KINGSTON MI
2015-04-01 989-735-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 GLENNIE MI
2015-04-01 989-768-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 PORTAUSTIN MI
2014-06-25 989-623-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 BAD AXE MI
2014-05-09 989-292-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - MI 6120 ST JOHNS MI

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.