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Data as of Nov 6, 2026

212.187.251.0/24

No anonymizer space · no proxy exits in 30 days

GTT Communications Inc. · space held by Lumen Technologies UK Limited

Announcement
this exact prefix
No RPKI
Announced by
AS3257
Type
Unknown
Risk
0 / 100 · Low

Announcements

Less specific

Covering announcements

PrefixOriginTypeProxy exitsHolderRPKI
212.187.128.0/17
since May 2005
AS3356Unknown17
1 always on
Lumen Technologies UK Limited

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
212.187.128.0/1732,768UK-LVLT-990820Lumen Technologies UK Limited (ORG-LC4-RIPE) · GBALLOCATED PAJul 29, 2002abuse@level3.com
└ 212.187.251.0/24256ONE-SOURCEOne Source UK LANASSIGNED PADec 4, 2013abuse@level3.com
via UK-LVLT-990820

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
Registry

Holder

Organization
Lumen Technologies UK Limited
Handle
ORG-LC4-RIPE
Range
212.187.128.0/17
Registration type
ALLOCATED PA
Record created
Jul 29, 2002
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