35.231.0.0/17

ip:	35.231.0.0 0.0.231.35.bc.googleusercontent.com
loc:	United States, North Charleston (South Carolina)  
isp:	AS396982 Google LLC » Google LLC » Google Cloud (us-east1) 333.547 ms
route:	35.231.0.0/17, GOOGLE-CLOUD - Google LLC, US (North Charleston) ... 
reg:	35.224.0.0/12, US, ARIN, 2017-09-29
asn:	AS396982 - GOOGLE-CLOUD-PLATFORM Google LLC, US
addr:	  1600 Amphitheatre Parkway Mountain View CA 94043 US
online:	  11.764 » latency: 118 ms (121ms) 

see also:
   35.228.0.0/14    AS396982  GOOGLE-CLOUD Google LLC, US