18.165.76.0/22

ip:	18.165.76.0 server-18-165-76-0.iad55.r.cloudfront.net
loc:	United States, Washington (District of Columbia)  
isp:	AS16509 Amazon.com, Inc. » Amazon.com, Inc. » AWS CloudFront (GLOBAL) 310.814 ms
route:	18.165.76.0/22, AMAZON-CF - Amazon.com, Inc., US (Ashburn) ... 
reg:	18.128.0.0/9, US, ARIN, 2019-10-07
asn:	AS16509 - AMAZON-02 Amazon.com Inc., US
addr:	  1918 8th Ave SEATTLE WA 98101-1244 US
online:	  932 » latency: 110 ms (111ms) 

see also:
   18.164.0.0/14    AS16509  AMAZON-CF Amazon.com, Inc., US