13.249.198.0/23

ip:	13.249.198.0 server-13-249-198-0.dfw56.r.cloudfront.net
loc:	United States, Dallas (Texas)  
isp:	AS16509 Amazon.com, Inc. » Amazon.com, Inc. » AWS CloudFront (GLOBAL) 163.901 ms
route:	13.249.198.0/23, AMAZO-CF - Amazon.com, Inc., US ... 
reg:	13.248.0.0/14, US, ARIN, 2018-07-11
asn:	AS16509 - AMAZON-02 Amazon.com Inc., US
addr:	  
online:	  511 » latency: 148 ms (148ms) 

see also:
   13.248.0.0/14    AS16509  AMAZON-SIN Amazon Data Services Singapore, SG