SUBNET.IM

AS202121Politechnika Warszawska Filia w Plocku

PolandRegistryRIPE NCC

At a glance

IPv4 prefixes

1

IPv6 prefixes

0

IPv4 addresses

512

IPv6 /64s

0

Upstream graph

The networks AS202121 is seen behind, one and two hops out, drawn from real AS paths.

AS202121Toward the internet core
Upstream graph for AS202121: 6 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS202121Politechnika Wars…This networkAS1887NAUKOWA I AKADEMI…AS12741Netia SAAS5617Orange Polska Spo…AS8501Institute of Bioo…AS3356Lumen (Level 3)AS6461Zayo Bandwidth

Networks observed one and two hops upstream of AS202121 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

4

adjacent networks

Upstreams
250%
Peers
250%
Downstreams
00%

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

Upstreams of AS202121
NetworkCountryRelationshipPathsVantage pts
AS12741Netia SAPLPeer7575
AS1887NAUKOWA I AKADEMICKA SIEC KOMPUTEROWA - PANSTWOWY INSTYTUT BADAWCZYPLPeer44

Prefixes

The largest blocks AS202121 originates, widest first.

Largest prefixes originated by AS202121
PrefixAddressesVisibility
148.81.246.0/2351279/80

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