ResearchRouting table, RPKI, IRR & looking glass

AS197451 Brno University of Technology

AS197451 (VUTBR-AS) is registered to Brno University of Technology in CZ. It originates 12 prefixes in the global routing table.

8
IPv4 prefixes
4
IPv6 prefixes
67,072
IPv4 addresses
66%
RPKI valid

Who holds AS197451

Names from RIPE NCC’s daily list of every allocated AS number. The ASN lookup fetches the full WHOIS record live.

AS number
AS197451
Handle
VUTBR-AS
Organization
Brno University of Technology
Country
CZ
ASPA
None published

What AS197451 announces

Prefixes originated by AS197451 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
8
IPv6 prefixes
4
IPv4 addresses
67,072 (262 /24s)
RPKI valid
8 66%
RPKI invalid
0
RPKI not found
4
ROAs naming AS197451
7
With an IRR route object
12 100%

Announced prefixes

Each opens its own page: who announces it, the paths our collectors see, its ROAs and route objects.

Who AS197451 is reached through

The AS just before AS197451 in the paths our looking glass collectors hold, for 12 of its prefixes. Usually a transit provider, sometimes a peer. The number is how many of those prefixes it was seen on.

Routing registry objects

From the mirrored IRR databases (RADB, the five RIRs and more). Look it up live.

Sourceas-nameMaintained by
RIPEVUTBR-ASRIPE-NCC-END-MNT, VUTBR-MNT

Route objects with origin AS197451: RIPE 16 · RADB 8

as-sets that list AS197451 (9)