13.40.0.0/13

ip:	13.40.0.0 ec2-13-40-0-0.eu-west-2.compute.amazonaws.com
loc:	United Kingdom, London (England)  
isp:	AS16509 Amazon.com, Inc. » Amazon Technologies Inc. » AWS EC2 (eu-west-2) 281.727 ms
route:	13.40.0.0/13, AMAZON-LHR - Amazon Data Services UK, GB ... 
reg:	13.32.0.0/12, US, ARIN, 2020-08-05
asn:	AS16509 - AMAZON-02 Amazon.com Inc., US
addr:	  
online:	  11.025 » latency: 37 ms (69ms) 

see also:
   13.40.0.0/14     AS16509  AMAZON-LHR Amazon Data Services UK, GB