ResearchRouting table, RPKI, IRR & looking glass

AS17947 SAKURA KCS Corporation.

AS17947 (S-UTOPIA) is registered to SAKURA KCS Corporation. in JP. It originates 2 prefixes in the global routing table.

2
IPv4 prefixes
0
IPv6 prefixes
69,632
IPv4 addresses
0%
RPKI valid

Who holds AS17947

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

AS number
AS17947
Handle
S-UTOPIA
Organization
SAKURA KCS Corporation.
Country
JP
ASPA
None published

What AS17947 announces

Prefixes originated by AS17947 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
0
IPv4 addresses
69,632 (272 /24s)
RPKI valid
0 0%
RPKI invalid
0
RPKI not found
2
ROAs naming AS17947
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 (2)

RPKI valid   RPKI invalid   no ROA covers it

Who AS17947 is reached through

The AS just before AS17947 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
APNICSAKURA-UTOPIAMAINT-JPNIC
JPIRRS-UTOPIA-NETMAINT-AS7684
RADBS-UTOPIA-NETMAINT-AS2516

Route objects with origin AS17947: JPIRR 10 · RADB 3

as-sets that list AS17947 (19)