52.46.9.0/24

ip:	52.46.9.0 server-52-46-9-0.vie50.r.cloudfront.net
loc:	United Kingdom, London (England)  
isp:	AS16509 Amazon.com, Inc. » Amazon.com, Inc. » AWS CloudFront Origin Facing (GLOBAL) 400.211 ms
route:	52.46.9.0/24, AMAZO-CF - Amazon.com, Inc., US ... 
reg:	52.0.0.0/10, US, ARIN, 1991-12-19
asn:	AS16509 - AMAZON-02 Amazon.com Inc., US
addr:	  
online:	  36 » latency: 37 ms (37ms) 

see also:
   52.32.0.0/11     AS16509  AT-88-Z Amazon Technologies Inc., US