NumberResearch Membership · Data 09/20/2026

Thousands-blocks in 352-643

This prefix’s ten 1,000-number blocks and who holds each — 10 on record · from the daily NANPA thousands-block report, 09/20/2026

Full prefixes (NXX) Thousands-blocks (1,000-number pools)

The ten 1,000-number thousand-blocks inside prefix 352-643 and who was initially assigned each. Under pooling these blocks often belong to different carriers — the single prefix-level “assignee” is usually just the pool / code holder, not who holds the numbers. ← all 352 blocks

Most active assignees, all time — NPA 352
LEVEL 3 COMMUNICATIONS, LLC - FL 4
MCIMETRO ACCESS TRANSMISSION SERVICES LLC 2
CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 2
PAETEC ITEL, LLC 1
CENTURYLINK COMMUNICATIONS, LLC 1
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
— 352-643-0XXX 0000–0999Reserved CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 WILDWOOD FL
— 352-643-1XXX 1000–1999Reserved CELLCO PARTNERSHIP DBA VERIZON WIRELESS - FL 6502 WILDWOOD FL
2013-12-06 352-643-2XXX 2000–2999Assigned PAETEC ITEL, LLC 829J WILDWOOD FL
2012-03-28 352-643-3XXX 3000–3999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 WILDWOOD FL
2013-05-13 352-643-4XXX 4000–4999Assigned MCIMETRO ACCESS TRANSMISSION SERVICES LLC 7229 WILDWOOD FL
2013-02-05 352-643-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 WILDWOOD FL
2014-04-01 352-643-6XXX 6000–6999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 WILDWOOD FL
2013-10-07 352-643-7XXX 7000–7999Assigned CENTURYLINK COMMUNICATIONS, LLC 508J WILDWOOD FL
2014-04-01 352-643-8XXX 8000–8999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 WILDWOOD FL
2015-03-13 352-643-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 WILDWOOD FL

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.