35.243.56.0/21

ip:	35.243.56.0 0.56.243.35.bc.googleusercontent.com
loc:	Japan, Osaka (Ōsaka)  
isp:	AS396982 Google LLC » Google LLC » Google Cloud (asia-northeast2) 336.771 ms
route:	35.243.56.0/21, GOOGLE-CLOUD - Google LLC, JP (Osaka) ... 
reg:	35.240.0.0/13, US, ARIN, 2017-09-29
asn:	AS396982 - GOOGLE-CLOUD-PLATFORM Google LLC, US
addr:	  1600 Amphitheatre Parkway Mountain View CA 94043 US

see also:
   35.240.0.0/14    AS396982  GOOGLE-CLOUD Google LLC, US