16.52.0.0/16

ip:	16.52.0.0 ec2-16-52-0-0.ca-central-1.compute.amazonaws.com
loc:	Canada, Toronto (Ontario)  
isp:	AS16509 Amazon.com, Inc. » Amazon.com » AWS EC2 (ca-central-1) 334.629 ms
route:	16.52.0.0/16, AMAZON-YUL - Amazon Data Services Canada, CA (Montreal) ... 
reg:	16.48.0.0/13, US, ARIN, 2020-04-29
asn:	AS16509 - AMAZON-02 Amazon.com Inc., US
addr:	  Amazon Web Services Inc. P.O. Box 81226 Seattle WA 98108-1226 US
online:	  2.975 » latency: 120 ms (128ms) 

see also:
   16.52.0.0/14     AS16509  AMAZON-YUL Amazon Data Services Canada, CA