SUBNET.IM

AS197451Brno University of Technology

CzechiaRegistryRIPE NCCTypeEyeball

At a glance

IPv4 prefixes

8

IPv6 prefixes

4

IPv4 addresses

67.6k

IPv6 /64s

55.8B

Upstream graph

The networks AS197451 is seen behind, one and two hops out, drawn from real AS paths.

AS197451Toward the internet core
Upstream graph for AS197451: 8 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS197451Brno University o…This networkAS2852CESNET z.s.p.o.AS15935ha-vel internet s…AS16019Vodafone Czech Re…AS60606PRO-ZETA a.s.AS174Cogent Communicat…AS6939Hurricane Electri…AS9002RETN LimitedAS1273Vodafone Group PLC

Networks observed one and two hops upstream of AS197451 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

24

adjacent networks

Upstreams
313%
Peers
1250%
Downstreams
938%

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

Upstreams of AS197451
NetworkCountryRelationshipPathsVantage pts
AS16019Vodafone Czech Republic a.s.CZPeer1,290115
AS15935ha-vel internet s.r.o.CZPeer91781
AS2852CESNET z.s.p.o.CZPeer359140

Prefixes

The largest blocks AS197451 originates, widest first.

Largest prefixes originated by AS197451
PrefixAddressesVisibility
147.229.0.0/1732.8k79/80
147.229.128.0/1816.4k79/80
147.229.192.0/198.2k79/80
147.229.224.0/198.2k80/80
185.149.204.0/221k80/80
185.62.108.0/2351280/80
185.149.204.0/2425680/80
185.149.205.0/2425680/80
2a07:6bc0::/2934.4B × /6460/62
2a03:2e4::/3017.2B × /6461/62

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