AS20252 Joan and Sanford I. Weill Medical College and Graduate School of Medical Sciences of Cornell University
AS20252 (JSIWMC) is registered to Joan and Sanford I. Weill Medical College and Graduate School of Medical Sciences of Cornell University in US. It originates 4 prefixes in the global routing table.
Who holds AS20252
Names from RIPE NCC’s daily list of every allocated AS number. The ASN lookup fetches the full WHOIS record live.
What AS20252 announces
Prefixes originated by AS20252 in the RouteViews table (refreshed every four hours), each checked against the RPKI (every ten minutes) and the IRR (daily).
Announced prefixes
Each opens its own page: who announces it, the paths our collectors see, its ROAs and route objects.
RPKI valid RPKI invalid no ROA covers it
Who AS20252 is reached through
The AS just before AS20252 in the paths our looking glass collectors hold, for 4 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.
| Source | as-name | Maintained by |
|---|---|---|
| RADB | RoadRunner | MAINT-RR |
Route objects with origin AS20252: RADB 9