SUBNET.IM

AS51155Citylink Telecom Sp. z o.o.

PolandRegistryRIPE NCC

At a glance

IPv4 prefixes

3

IPv6 prefixes

1

IPv4 addresses

5.1k

IPv6 /64s

4.3B

Upstream graph

The networks AS51155 is seen behind, one and two hops out, drawn from real AS paths.

AS51155Toward the internet core
Upstream graph for AS51155: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS51155Citylink Telecom …This networkAS3356Lumen (Level 3)AS6939Hurricane Electri…AS9002RETN LimitedAS49544i3D.net B.VAS50263A-Systems Sp. z o…AS3549Lumen (fka. Globa…AS20130Depaul UniversityAS2914NTT America, Inc.AS6453TATA Communicatio…AS51907Kanton ZugAS3257GTT Communication…AS132337Axclusive

Networks observed one and two hops upstream of AS51155 in real AS paths. A thicker line means more vantage points saw that adjacency, so weight tracks how well attested it is — not how much traffic it carries. Adjacency is an observation; whether it is a transit purchase or a settlement-free peering is an inference, and is labelled as one wherever we show it.

Neighbouring networks

47

adjacent networks

Upstreams
1021%
Peers
3370%
Downstreams
49%

Networks carrying this one's traffic toward the rest of the internet.

Upstreams of AS51155
NetworkCountryRelationshipPathsVantage pts
AS3356Lumen (Level 3)USPeer39839
AS50263A-Systems Sp. z o.o.PLPeer20020
AS9002RETN LimitedGBPeer15738
AS6939Hurricane Electric LLCUSPeer7438
AS49544i3D.net B.VNLPeer132
AS24482SG.GSSGPeer121
AS137409GSL Networks Pty LTDAUPeer111
AS24940Hetzner Online GmbHDEPeer101
AS32590Valve CorporationUSPeer101
AS201054Stowarzyszenie e-PoludniePLPeer22

Prefixes

The largest blocks AS51155 originates, widest first.

Largest prefixes originated by AS51155
PrefixAddressesVisibility
178.19.176.0/204.1k80/80
46.227.36.0/2351280/80
46.227.38.0/2351280/80
2a02:26e8::/324.3B × /6461/62

Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.