ResearchRouting table, RPKI, IRR & looking glass

AS201594 Czech Telecommunication Office

AS201594 (CTU_AS4) is registered to Czech Telecommunication Office in CZ. It originates 2 prefixes in the global routing table.

1
IPv4 prefixes
1
IPv6 prefixes
256
IPv4 addresses
0%
RPKI valid

Who holds AS201594

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

AS number
AS201594
Handle
CTU_AS4
Organization
Czech Telecommunication Office
Country
CZ
ASPA
None published

What AS201594 announces

Prefixes originated by AS201594 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
1
IPv6 prefixes
1
IPv4 addresses
256 (1 /24s)
RPKI valid
0 0%
RPKI invalid
0
RPKI not found
2
ROAs naming AS201594
0
With an IRR route object
2 100%

Announced prefixes

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

IPv4 (1)
IPv6 (1)

RPKI valid   RPKI invalid   no ROA covers it

Who AS201594 is reached through

The AS just before AS201594 in the paths our looking glass collectors hold, for 2 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
RIPECTU_AS4RIPE-NCC-END-MNT, SUPER-CTU

Route objects with origin AS201594: RIPE 2

as-sets that list AS201594 (9)