SUBNET.IM

AS21077Specialist Computer Centres Plc

United KingdomRegistryRIPE NCC

At a glance

IPv4 prefixes

12

IPv6 prefixes

0

IPv4 addresses

8.4k

IPv6 /64s

0

Upstream graph

The networks AS21077 is seen behind, one and two hops out, drawn from real AS paths.

AS21077Toward the internet core
Upstream graph for AS21077: 3 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS21077Specialist Comput…This networkAS39545Fluidone Ltd.AS3257GTT Communication…AS4455IX Reach Ltd

Networks observed one and two hops upstream of AS21077 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

2

adjacent networks

Upstreams
150%
Peers
150%
Downstreams
00%

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

Upstreams of AS21077
NetworkCountryRelationshipPathsVantage pts
AS39545Fluidone Ltd.GBPeer96080

Prefixes

The largest blocks AS21077 originates, widest first.

Largest prefixes originated by AS21077
PrefixAddressesVisibility
80.86.32.0/204.1k80/80
185.98.180.0/221k80/80
185.106.220.0/221k80/80
185.98.180.0/2425680/80
185.98.181.0/2425680/80
185.98.182.0/2425680/80
185.106.220.0/2425680/80
185.106.221.0/2425680/80
185.106.222.0/2425680/80
185.106.223.0/2425680/80

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