3.164.28.0/23

ip:	3.164.28.0 server-3-164-28-0.gru3.r.cloudfront.net
loc:	Brazil, São Paulo (São Paulo)  
isp:	AS16509 Amazon.com, Inc. » Amazon.com, Inc. » AWS CloudFront (GLOBAL) 387.78 ms
route:	3.164.28.0/23, AT-88-Z - Amazon Technologies Inc., US (São Paulo) ... 
reg:	3.128.0.0/9, US, ARIN, 2018-06-25
asn:	AS16509 - AMAZON-02 Amazon.com Inc., US
addr:	  410 Terry Ave N. Seattle WA 98109 US
online:	  502 » latency: 234 ms (234ms) 

see also:
   3.128.0.0/10     AS16509  AT-88-Z Amazon Technologies Inc., US