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 352
LEVEL 3 COMMUNICATIONS, LLC - FL 159
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
2024-12-17 352-755-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 MOUNT DORA FL
2023-10-17 352-774-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 GAINESVL FL
2023-10-17 352-774-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 GAINESVL FL
2023-10-17 352-774-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 GAINESVL FL
2023-05-04 352-386-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 CLERMONT FL
2023-05-04 352-386-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 CLERMONT FL
2023-01-31 352-810-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 GAINESVL FL
2022-12-13 352-767-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 ASTOR FL
2022-12-12 352-712-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 SALT SPG FL
2022-12-12 352-844-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 OCALA FL
2022-12-12 352-914-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 WILLISTON FL
2022-12-09 352-520-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 OCKLAWAHA FL
2022-12-09 352-695-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 SANANTONIO FL
2022-12-09 352-785-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 UMATILLA FL
2022-12-09 352-791-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 HOWEYINHLS FL
2022-08-02 352-756-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 GAINESVL FL
2022-04-14 352-663-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 GAINESVL FL
2022-04-12 352-675-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 WEEKICHSPG FL
2020-05-27 352-747-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 EUSTIS FL
2019-11-04 352-565-0XXX 0000–0999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 GAINESVL FL
2019-09-12 352-632-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 BEVERLYHLS FL
2018-05-04 352-554-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 GAINESVL FL
2017-09-25 352-218-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 MELROSE FL
2016-11-08 352-717-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 CLERMONT FL
2016-06-23 352-204-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 GAINESVL FL
2016-03-22 352-414-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 OCALA FL
2016-02-24 352-571-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 WILDWOOD FL
2015-10-09 352-537-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 SLRSPGSHRS FL
2015-07-23 352-363-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 GAINESVL FL
2015-06-24 352-571-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 WILDWOOD FL
2015-04-07 352-815-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 BUSHNELL FL
2015-03-13 352-643-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 WILDWOOD FL
2014-11-19 352-818-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 LEESBURG FL
2014-10-03 352-775-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 LADY LAKE FL
2014-09-25 352-877-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 OCALA FL
2014-09-25 352-877-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 OCALA FL
2014-09-24 352-559-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 GAINESVL FL
2014-05-14 352-444-7XXX 7000–7999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 BUSHNELL FL
2014-04-01 352-643-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 WILDWOOD FL
2014-04-01 352-643-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 WILDWOOD FL
2014-03-06 352-877-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 OCALA FL
2014-02-13 352-689-1XXX 1000–1999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 WILDWOOD FL
2014-02-13 352-877-2XXX 2000–2999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 OCALA FL
2013-12-17 352-689-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 WILDWOOD FL
2013-11-27 352-415-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 GAINESVL FL
2013-11-07 352-415-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 GAINESVL FL
2013-09-10 352-729-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 MOUNT DORA FL
2013-08-26 352-987-4XXX 4000–4999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 WEIRSDALE FL
2013-08-21 352-353-3XXX 3000–3999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 ARCHER FL
2013-07-30 352-325-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 CEDAR KEYS 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.