SUBNET.IM

AS27321ISC F-ROOT OAK1

United StatesRegistryARIN

At a glance

IPv4 prefixes

8

IPv6 prefixes

1

IPv4 addresses

2k

IPv6 /64s

65.5k

Upstream graph

The networks AS27321 is seen behind, one and two hops out, drawn from real AS paths.

AS27321Toward the internet core
Upstream graph for AS27321: 9 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS27321ISC F-ROOT OAK1This networkAS6461Zayo BandwidthAS6939Hurricane Electri…AS49544i3D.net B.VAS6667Elisa OyjAS32590Valve CorporationAS18106Viewqwest Pte LtdAS20130Depaul UniversityAS2914NTT America, Inc.AS3356Lumen (Level 3)

Networks observed one and two hops upstream of AS27321 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

18

adjacent networks

Upstreams
317%
Peers
1583%
Downstreams
00%

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

Upstreams of AS27321
NetworkCountryRelationshipPathsVantage pts
AS6939Hurricane Electric LLCUSPeer46797
AS6461Zayo BandwidthUSPeer22543
AS49544i3D.net B.VNLPeer11

Prefixes

The largest blocks AS27321 originates, widest first.

Largest prefixes originated by AS27321
PrefixAddressesVisibility
149.20.0.0/2425679/80
149.20.2.0/2425679/80
149.20.3.0/2425679/80
149.20.4.0/2425679/80
149.20.57.0/2425679/80
149.20.66.0/2425679/80
192.158.248.0/2425679/80
192.158.249.0/2425679/80
2001:500:6b::/4865.5k × /6461/62

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