ResearchRouting table, RPKI, IRR & looking glass

AS207187 TKR Jasek, s.r.o.

AS207187 (TKRJASEK) is registered to TKR Jasek, s.r.o. in CZ. It originates 9 prefixes in the global routing table.

6
IPv4 prefixes
3
IPv6 prefixes
14,336
IPv4 addresses
100%
RPKI valid

Who holds AS207187

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

AS number
AS207187
Handle
TKRJASEK
Organization
TKR Jasek, s.r.o.
Country
CZ
ASPA
5 providers

What AS207187 announces

Prefixes originated by AS207187 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
6
IPv6 prefixes
3
IPv4 addresses
14,336 (56 /24s)
RPKI valid
9 100%
RPKI invalid
0
RPKI not found
0
ROAs naming AS207187
9
With an IRR route object
9 100%

Announced prefixes

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

Who AS207187 is reached through

The AS just before AS207187 in the paths our looking glass collectors hold, for 9 of its prefixes. Usually a transit provider, sometimes a peer. The number is how many of those prefixes it was seen on.

Provider authorization

AS207187 publishes an ASPA naming these providers. 7 ASes name it as a provider in theirs. Check a path.

The 7 ASes that name AS207187 as a provider

Routing registry objects

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

Sourceas-nameMaintained by
RIPETKRJASEKRIPE-NCC-END-MNT, CZ-TKRJASEK-1-MNT

Route objects with origin AS207187: RIPE 10

as-sets that list AS207187 (5)