ResearchRouting table, RPKI, IRR & looking glass

AS205421 Sculk Software LLC

AS205421 (SCULKSOFT-AS) is registered to Sculk Software LLC in RU. It originates 3 prefixes in the global routing table.

2
IPv4 prefixes
1
IPv6 prefixes
512
IPv4 addresses
66%
RPKI valid

Who holds AS205421

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

AS number
AS205421
Handle
SCULKSOFT-AS
Organization
Sculk Software LLC
Country
RU
ASPA
3 providers

What AS205421 announces

Prefixes originated by AS205421 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
2
IPv6 prefixes
1
IPv4 addresses
512 (2 /24s)
RPKI valid
2 66%
RPKI invalid
0
RPKI not found
1
ROAs naming AS205421
3
With an IRR route object
3 100%

Announced prefixes

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

IPv4 (2)
IPv6 (1)

RPKI valid   RPKI invalid   no ROA covers it

Who AS205421 is reached through

The AS just before AS205421 in the paths our looking glass collectors hold, for 3 of its prefixes. Usually a transit provider, sometimes a peer. The number is how many of those prefixes it was seen on.

Provider authorization

AS205421 publishes an ASPA naming these providers. Check a path.

Routing registry objects

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

Sourceas-nameMaintained by
RIPESCULKSOFT-ASRIPE-NCC-END-MNT, RIT-ECODE-MNT

Route objects with origin AS205421: RIPE 3

as-sets that list AS205421 (6)