SUBNET.IM

AS397903Springcom

United StatesRegistryARIN

At a glance

IPv4 prefixes

2

IPv6 prefixes

1

IPv4 addresses

2.3k

IPv6 /64s

4.3B

Upstream graph

The networks AS397903 is seen behind, one and two hops out, drawn from real AS paths.

AS397903Toward the internet core
Upstream graph for AS397903: 5 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS397903SpringcomThis networkAS174Cogent Communicat…AS46293Midwest Energy & …AS1299Arelion (fka. Tel…AS151326DCConnect Communi…AS30517Missouri Network …

Networks observed one and two hops upstream of AS397903 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

5

adjacent networks

Upstreams
240%
Peers
360%
Downstreams
00%

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

Upstreams of AS397903
NetworkCountryRelationshipPathsVantage pts
AS174Cogent Communications, LLCUSPeer191124
AS46293Midwest Energy & CommunicationsUSPeer2412

Prefixes

The largest blocks AS397903 originates, widest first.

Largest prefixes originated by AS397903
PrefixAddressesVisibility
137.220.8.0/212k79/80
172.83.249.0/2425679/80
2607:5040::/324.3B × /6457/62

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