3.43.64.0/18

ip:	3.43.64.0 ec2-3-43-64-0.us-east-2.compute.amazonaws.com
loc:	United States, Dublin (Ohio)  
isp:	AS16509 Amazon.com, Inc. » Amazon Technologies Inc. » AWS EC2 (us-east-2) 320.22 ms
route:	3.43.64.0/18, AMAZON-DUB - Amazon Data Services Ireland Limited, IE (Columbus) ... 
reg:	3.0.0.0/9, US, ARIN, 2017-12-20
asn:	AS16509 - AMAZON-02 Amazon.com Inc., US
addr:	  
online:	  12 » latency: 124 ms (124ms) 

see also:
   3.0.0.0/10       AS16509  AT-88-Z Amazon Technologies Inc., US