SUBNET.IM

AS398537Kutztown University

United StatesRegistryARIN

At a glance

IPv4 prefixes

6

IPv6 prefixes

1

IPv4 addresses

132k

IPv6 /64s

268M

Upstream graph

The networks AS398537 is seen behind, one and two hops out, drawn from real AS paths.

AS398537Toward the internet core
Upstream graph for AS398537: 12 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS398537Kutztown Universi…This networkAS1000LINK AMERICANAS3356Lumen (Level 3)AS13536FirstLight Networ…AS399855Keystone REN, LLCAS174Cogent Communicat…AS6453TATA Communicatio…AS2914NTT America, Inc.AS3549Lumen (fka. Globa…AS1299Arelion (fka. Tel…AS3770FirstLight Networ…AS6939Hurricane Electri…AS11164Internet2 I2PX

Networks observed one and two hops upstream of AS398537 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

8

adjacent networks

Upstreams
450%
Peers
450%
Downstreams
00%

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

Upstreams of AS398537
NetworkCountryRelationshipPathsVantage pts
AS13536FirstLight Networks, LLCUSPeer31178
AS3356Lumen (Level 3)USPeer219141
AS399855Keystone REN, LLCUSPeer102
AS1000LINK AMERICANUSPeer11

Prefixes

The largest blocks AS398537 originates, widest first.

Largest prefixes originated by AS398537
PrefixAddressesVisibility
156.12.0.0/1665.5k80/80
156.12.0.0/1732.8k80/80
156.12.128.0/1732.8k80/80
204.108.164.0/2351280/80
156.12.1.0/2425680/80
198.206.191.0/2425680/80
2607:2240:2000::/36268M × /6461/62

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