ResearchRouting table, RPKI, IRR & looking glass

AS18097 D.C.N. Corporation

AS18097 (DCN) is registered to D.C.N. Corporation in JP. It originates 8 prefixes in the global routing table.

7
IPv4 prefixes
1
IPv6 prefixes
10,752
IPv4 addresses
0%
RPKI valid

Who holds AS18097

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

AS number
AS18097
Handle
DCN
Organization
D.C.N. Corporation
Country
JP
ASPA
None published

What AS18097 announces

Prefixes originated by AS18097 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
7
IPv6 prefixes
1
IPv4 addresses
10,752 (42 /24s)
RPKI valid
0 0%
RPKI invalid
0
RPKI not found
8
ROAs naming AS18097
0
With an IRR route object
7 87%

Announced prefixes

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

Who AS18097 is reached through

The AS just before AS18097 in the paths our looking glass collectors hold, for 8 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.