SUBNET.IM

AS203157Lukasz Kazimierczak Cronel

PolandRegistryRIPE NCC

At a glance

IPv4 prefixes

2

IPv6 prefixes

1

IPv4 addresses

1.3k

IPv6 /64s

17.2B

Upstream graph

The networks AS203157 is seen behind, one and two hops out, drawn from real AS paths.

AS203157Toward the internet core
Upstream graph for AS203157: 11 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS203157Lukasz Kazimiercz…This networkAS6939Hurricane Electri…AS29535Orange Polska Spo…AS49544i3D.net B.VAS50607Stowarzyszenie e-…AS197091METROPORT Sp. z o…AS18106Viewqwest Pte LtdAS20130Depaul UniversityAS5405Inter.link GmbHAS2914NTT America, Inc.AS3356Lumen (Level 3)AS9002RETN Limited

Networks observed one and two hops upstream of AS203157 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

20

adjacent networks

Upstreams
735%
Peers
1365%
Downstreams
00%

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

Upstreams of AS203157
NetworkCountryRelationshipPathsVantage pts
AS29535Orange Polska Spolka AkcyjnaPLPeer13376
AS6939Hurricane Electric LLCUSPeer5353
AS197091METROPORT Sp. z o.o.PLPeer2121
AS50607Stowarzyszenie e-PoludniePLPeer98
AS49544i3D.net B.VNLPeer32
AS5617Orange Polska Spolka AkcyjnaPLPeer11
AS201054Stowarzyszenie e-PoludniePLPeer11

Prefixes

The largest blocks AS203157 originates, widest first.

Largest prefixes originated by AS203157
PrefixAddressesVisibility
91.222.108.0/221k80/80
185.122.174.0/2425680/80
2a0b:79c0::/3017.2B × /6461/62

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