Autonomous System

AS20252 Joan and Sanford I. Weill Medical College and Graduate School of Medical Sciences of Cornell University

EducationActiveUnited StatesARIN

AS20252 (JSIWMC) is an education network operated by Joan and Sanford I. Weill Medical College and Graduate School of Medical Sciences of Cornell University in United States, registered with ARIN. It has 4 IPv4 prefixes with 98,816 addresses, which makes it the 2,346th largest of 82,200 active autonomous systems by IPv4 space.

IPv4 addresses98,816in 4 prefixes
IPv6 prefixes0none
Size rank#2,346of 82,200 active ASNs
Abuser scoreVery Lowunder 0.01% of its addresses flagged · method

Details

OrganizationJoan and Sanford I. Weill Medical College and Graduate School of Medical Sciences of Cornell University
AS nameJSIWMC
Websiteweill.cornell.edu
Country United States (US)
Network typeEducation
RegistryARIN
Abuse contactabuse@med.cornell.edu
Registered2001-04-12
Last updated2012-02-24

IPv4 prefixes

4 prefixes · 98,816 addresses
NetworkAddressesFirst – last address
157.139.0.0/1665,536157.139.0.0 – 157.139.255.255
140.251.0.0/1732,768140.251.0.0 – 140.251.127.255
38.146.193.0/2425638.146.193.0 – 38.146.193.255
207.162.253.0/24256207.162.253.0 – 207.162.253.255

IPv6 prefixes

No IPv6 prefixes.

Query AS20252 with the API

The ASN lookup returns everything on this page as JSON, including every prefix. ASN lookups need an API key: a free account comes with 1,000 requests a day. 

curl "https://api.ipapi.is/?q=AS20252&key=YOUR_API_KEY"

Any address in its prefixes resolves to AS20252, with or without a key:

curl "https://api.ipapi.is/?q=157.139.0.1"

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