ResearchRouting table, RPKI, IRR & looking glass

AS63783 Chiba University of Commerce

AS63783 (CUC) is registered to Chiba University of Commerce in JP. It originates 3 prefixes in the global routing table.

3
IPv4 prefixes
0
IPv6 prefixes
2,048
IPv4 addresses
0%
RPKI valid

Who holds AS63783

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

AS number
AS63783
Handle
CUC
Organization
Chiba University of Commerce
Country
JP
ASPA
None published

What AS63783 announces

Prefixes originated by AS63783 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).

IPv4 prefixes
3
IPv6 prefixes
0
IPv4 addresses
2,048 (8 /24s)
RPKI valid
0 0%
RPKI invalid
0
RPKI not found
3
ROAs naming AS63783
0
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 (3)

RPKI valid   RPKI invalid   no ROA covers it

Who AS63783 is reached through

The AS just before AS63783 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.

Routing registry objects

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

Sourceas-nameMaintained by
JPIRRcuc-autnumMAINT-AS63783

Route objects with origin AS63783: JPIRR 3

as-sets that list AS63783 (12)