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Data as of Nov 4, 2026

137.44.124.0/23

No anonymizer space · no proxy exits in 30 days

GTT Communications Inc. · space held by Rosenberger Hochfrequenztechnik GmbH trading as Rosenberger Hochfrequenztechnik GmbH & Co. KG

Announcement
this exact prefix
RPKI valid
Announced by
AS3257
Type
Business
Risk
0 / 100 · Low
Recent change
New origin May 2026
its first announcement on record

Registrations in this block

The registry's network records over the announcement: those covering it, widest first, then every record inside it, under its parent.

RangeAddressesNetnameHolderTypeCreatedAbuse contact
137.44.120.0/212,048NET-19891025Rosenberger Hochfrequenztechnik GmbH trading as Rosenberger Hochfrequenztechnik GmbH & Co. KG (ORG-RHGT1-RIPE) · DELEGACYMay 15, 2026abuse-ip@rosenberger.com
└ 137.44.124.0/2732rb-de-laf2-IPv4NET1Rosenberger Kunststofftechnik GmbH & Co. KGLEGACYMay 21, 2026abuse-ip@rosenberger.com
via NET-19891025

A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
Origin network

AS3257

US
Name
GTT Communications Inc.
Type
Internet provider
Registered
Sep 30, 1994
Domain
gtt.net
Website
www.gtt.net
Industry
Internet Service Provider (ISP)
Spamhaus ASN-DROP
not listed
VPN servers
244