52.46.7.0/24

ip:	52.46.7.0 server-52-46-7-0.txl51.r.cloudfront.net
loc:	United States, Portland (Oregon)  
isp:	AS16509 Amazon.com, Inc. » Amazon.com, Inc. » AWS CloudFront Origin Facing (GLOBAL) 267.686 ms
route:	52.46.7.0/24, AMAZO-CF - Amazon.com, Inc., US (Berlin) ... 
reg:	52.0.0.0/10, DE, ARIN, 1991-12-19
asn:	AS16509 - AMAZON-02 Amazon.com Inc., US
addr:	  1918 8th Ave SEATTLE WA 98101-1244 US
online:	  36 » latency: 176 ms (176ms) 

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