NumberResearch Membership · Data 09/20/2026

Thousands-blocks in 239-599

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 239-599 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 239 blocks

Most active assignees, all time — NPA 239
COMCAST IP PHONE, LLC 3
LEVEL 3 COMMUNICATIONS, LLC - FL 2
YMAX COMMUNICATIONS CORP. - FL 1
TELEPORT COMMUNICATIONS AMERICA, LLC - FL 1
ORLANDO TELEPHONE COMPANY DBA SUMMIT BROADBAND 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
2012-12-13 239-599-0XXX 0000–0999Assigned ORLANDO TELEPHONE COMPANY DBA SUMMIT BROADBAND 7857 CAPE CORAL FL
2026-05-11 239-599-1XXX 1000–1999Assigned HD CARRIER LLC 321J CAPE CORAL FL
2012-01-12 239-599-2XXX 2000–2999Assigned COMCAST IP PHONE, LLC 318J CAPE CORAL FL
2007-05-07 239-599-3XXX 3000–3999Assigned MCI WORLDCOM COMMUNICATIONS, INC. - FL 7448 CAPE CORAL FL
2009-02-19 239-599-4XXX 4000–4999Assigned COMCAST IP PHONE, LLC 318J CAPE CORAL FL
2012-07-12 239-599-5XXX 5000–5999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 CAPE CORAL FL
2012-09-10 239-599-6XXX 6000–6999Assigned TELEPORT COMMUNICATIONS AMERICA, LLC - FL 8300 CAPE CORAL FL
2013-08-06 239-599-7XXX 7000–7999Assigned YMAX COMMUNICATIONS CORP. - FL 594D CAPE CORAL FL
2006-09-26 239-599-8XXX 8000–8999Assigned COMCAST IP PHONE, LLC 318J CAPE CORAL FL
2014-09-25 239-599-9XXX 9000–9999Assigned LEVEL 3 COMMUNICATIONS, LLC - FL 4802 CAPE CORAL 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.