ResearchRouting table, RPKI, IRR & looking glass

AS133475 New York University ASN

AS133475 (NEWYORKUNIVERSITY-AS-SHANGHAI) is registered to New York University ASN in CN. It originates 3 prefixes in the global routing table.

2
IPv4 prefixes
1
IPv6 prefixes
512
IPv4 addresses
0%
RPKI valid

Who holds AS133475

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

AS number
AS133475
Handle
NEWYORKUNIVERSITY-AS-SHANGHAI
Organization
New York University ASN
Country
CN
ASPA
None published

What AS133475 announces

Prefixes originated by AS133475 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
0 0%
RPKI invalid
0
RPKI not found
3
ROAs naming AS133475
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 (2)
IPv6 (1)

RPKI valid   RPKI invalid   no ROA covers it

Who AS133475 is reached through

The AS just before AS133475 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.