SUBNET.IM

AS213901Jerzy Kolosowski

PolandRegistryRIPE NCC

At a glance

IPv4 prefixes

0

IPv6 prefixes

1

IPv4 addresses

0

IPv6 /64s

1M

Upstream graph

The networks AS213901 is seen behind, one and two hops out, drawn from real AS paths.

AS213901Toward the internet core
Upstream graph for AS213901: 6 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS213901Jerzy KolosowskiThis networkAS20473The Constant Comp…AS56662Marcin GondekAS1299Arelion (fka. Tel…AS2914NTT America, Inc.AS13030Init7 (Switzerlan…AS25091IP-Max SA

Networks observed one and two hops upstream of AS213901 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 AS213901
NetworkCountryRelationshipPathsVantage pts
AS20473The Constant Company, LLCUSPeer6060
AS56662Marcin GondekPLPeer11

Prefixes

The largest blocks AS213901 originates, widest first.

Largest prefixes originated by AS213901
PrefixAddressesVisibility
2a0e:97c0:430::/441M × /6461/62

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