ResearchRouting table, RPKI, IRR & looking glass

AS18136 JCOM Co., Ltd.

AS18136 (CTA) is registered to JCOM Co., Ltd. in JP. It originates 18 prefixes in the global routing table.

18
IPv4 prefixes
0
IPv6 prefixes
43,008
IPv4 addresses
100%
RPKI valid

Who holds AS18136

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

AS number
AS18136
Handle
CTA
Organization
JCOM Co., Ltd.
Country
JP
ASPA
None published

What AS18136 announces

Prefixes originated by AS18136 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
18
IPv6 prefixes
0
IPv4 addresses
43,008 (168 /24s)
RPKI valid
18 100%
RPKI invalid
0
RPKI not found
0
ROAs naming AS18136
6
With an IRR route object
18 100%

Announced prefixes

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

Who AS18136 is reached through

The AS just before AS18136 in the paths our looking glass collectors hold, for 18 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
RADBCTAMAINT-AS9824

Route objects with origin AS18136: RADB 22 · JPIRR 18

as-sets that list AS18136 (12)