SUBNET.IM

AS203689NATIONALE-NEDERLANDEN TOWARZYSTWO UBEZPIECZEN NA ZYCIE SA

PolandRegistryRIPE NCC

At a glance

IPv4 prefixes

4

IPv6 prefixes

0

IPv4 addresses

1.5k

IPv6 /64s

0

Upstream graph

The networks AS203689 is seen behind, one and two hops out, drawn from real AS paths.

AS203689Toward the internet core
Upstream graph for AS203689: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS203689NATIONALE-NEDERLA…This networkAS202Level 3 Parent, L…AS3257GTT Communication…AS8220COLTAS12741Netia SAAS12912T-Mobile Polska S…AS2497Internet Initiati…AS6667Elisa OyjAS3356Lumen (Level 3)AS15576NTS workspace AGAS1299Arelion (fka. Tel…AS6461Zayo BandwidthAS33891Core-Backbone GmbH

Networks observed one and two hops upstream of AS203689 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

12

adjacent networks

Upstreams
542%
Peers
758%
Downstreams
00%

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

Upstreams of AS203689
NetworkCountryRelationshipPathsVantage pts
AS12912T-Mobile Polska S.A.PLPeer10756
AS3257GTT Communications Inc.USPeer8342
AS202Level 3 Parent, LLCUSPeer6529
AS8220COLTGBPeer5025
AS12741Netia SAPLPeer1510

Prefixes

The largest blocks AS203689 originates, widest first.

Largest prefixes originated by AS203689
PrefixAddressesVisibility
157.25.130.0/2351280/80
157.25.174.0/2351280/80
199.204.10.0/2425680/80
199.204.11.0/2425680/80

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