Data as of Nov 15, 2026

207.162.253.0/24

No anonymizer space · no proxy exits in 30 days

Joan and Sanford I. Weill Medical College and Graduate School of Medical Sciences of Cornell University · space held by Weill Cornell Medical College in Qatar

Announcement
this exact prefix
No RPKI
Announced by
Type
Business
Risk
0 / 100 · Low

Announcements

Less specific

Covering announcements

PrefixOriginTypeProxy exitsHolderRPKI
207.162.240.0/20
since May 2005
AS32539Business2Weill Cornell Medical College in Qatar

Network & registry

Routing timeline

Covering aggregate above, the prefix's own history below

Summary

Routing history

Pattern
Stable
First seen
May 2011
Current origin since
Mar 2023 · 3.7 yr
Origin networks
2
Last change of origin
May 2012
Recorded history

History

Handoffs
1