13.56.0.0/14

ip:	13.56.0.0 ec2-13-56-0-0.us-west-1.compute.amazonaws.com
loc:	United States, San Jose (California)  
isp:	AS16509 Amazon.com, Inc. » Amazon.com, Inc. » AWS EC2 (us-west-1) 419.019 ms
route:	13.56.0.0/14, AT-88-Z - Amazon Technologies Inc., US (San Jose) ... 
reg:	13.56.0.0/14, US, ARIN, 2020-08-05
asn:	AS16509 - AMAZON-02 Amazon.com Inc., US
addr:	  410 Terry Ave N. Seattle WA 98109 US
online:	  18.509 » latency: 145 ms (154ms) 

see also:
   13.56.0.0/16     AS16509  AT-88-Z Amazon Technologies Inc., US
   13.57.0.0/16     AS16509  AT-88-Z Amazon Technologies Inc., US
   13.58.0.0/15     AS16509  AT-88-Z Amazon Technologies Inc., US