SUBNET.IM

AS397142City of Fort Collins

United StatesRegistryARIN

At a glance

IPv4 prefixes

13

IPv6 prefixes

10

IPv4 addresses

36.1k

IPv6 /64s

4.4B

Upstream graph

The networks AS397142 is seen behind, one and two hops out, drawn from real AS paths.

AS397142Toward the internet core
Upstream graph for AS397142: 10 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS397142City of Fort Coll…This networkAS174Cogent Communicat…AS6939Hurricane Electri…AS14537Continent 8 LLCAS393552Longmont Power & …AS1299Arelion (fka. Tel…AS151326DCConnect Communi…AS18106Viewqwest Pte LtdAS20130Depaul UniversityAS2914NTT America, Inc.AS3356Lumen (Level 3)

Networks observed one and two hops upstream of AS397142 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

26

adjacent networks

Upstreams
415%
Peers
1765%
Downstreams
519%

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

Upstreams of AS397142
NetworkCountryRelationshipPathsVantage pts
AS6939Hurricane Electric LLCUSPeer2,013130
AS174Cogent Communications, LLCUSPeer81888
AS393552Longmont Power & CommunicationsUSPeer502
AS14537Continent 8 LLCUSPeer182

Prefixes

The largest blocks AS397142 originates, widest first.

Largest prefixes originated by AS397142
PrefixAddressesVisibility
38.15.32.0/198.2k80/80
38.175.160.0/198.2k80/80
38.246.0.0/198.2k80/80
167.94.176.0/204.1k80/80
38.75.232.0/212k80/80
38.147.232.0/212k80/80
38.80.148.0/221k80/80
198.99.80.0/221k80/80
23.163.32.0/2425680/80
192.251.149.0/2425680/80

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