ResearchRouting table, RPKI, IRR & looking glass

AS203933 DataCentrum

AS203933 (SK-DC-AS) is registered to DataCentrum in SK. It originates 4 prefixes in the global routing table.

4
IPv4 prefixes
0
IPv6 prefixes
1,024
IPv4 addresses
0%
RPKI valid

Who holds AS203933

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

AS number
AS203933
Handle
SK-DC-AS
Organization
DataCentrum
Country
SK
ASPA
None published

What AS203933 announces

Prefixes originated by AS203933 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
4
IPv6 prefixes
0
IPv4 addresses
1,024 (4 /24s)
RPKI valid
0 0%
RPKI invalid
0
RPKI not found
4
ROAs naming AS203933
0
With an IRR route object
2 50%

Announced prefixes

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

IPv4 (4)

RPKI valid   RPKI invalid   no ROA covers it

Who AS203933 is reached through

The AS just before AS203933 in the paths our looking glass collectors hold, for 4 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
RIPESK-DC-ASRIPE-NCC-END-MNT, SK-DC-MNT

Route objects with origin AS203933: RIPE 10

as-sets that list AS203933 (5)