16.148.0.0/16

ip:	16.148.0.0 ec2-16-148-0-0.us-west-2.compute.amazonaws.com
loc:	United States, Portland (Oregon)  
isp:	AS16509 Amazon.com, Inc. » Amazon.com, Inc. » AWS EC2 (us-west-2) 294.481 ms
route:	16.148.0.0/16, AMAZO-4 - Amazon.com, Inc., US (Boardman) ... 
reg:	16.148.0.0/16, US, ARIN, 2021-05-28
asn:	AS16509 - AMAZON-02 Amazon.com Inc., US
addr:	  Amazon Web Services Inc. P.O. Box 81226 Seattle WA 98108-1226 US
online:	  2.037 » latency: 184 ms (194ms) 

see also:
   16.148.0.0/17    AS16509  AMAZO-4 Amazon.com, Inc., US
   16.148.128.0/17  AS16509  AMAZO-4 Amazon.com, Inc., US