52.122.40.0/22

ip:	52.122.40.0 
loc:	Japan, Osaka (Ōsaka)  
isp:	AS8069 Microsoft Corporation » Microsoft Corporation » Microsoft Azure Cloud (japanwest) 401.533 ms
route:	52.122.40.0/22, MSFT - Microsoft Corporation, JP (OSAKA) ... 
reg:	52.120.0.0/14, US, ARIN, 2015-11-24
asn:	AS8069 - MICROSOFT-CORP-MSN-AS-BLOCK Microsoft Corporation, US
	  AS6453  - AS6453 TATA COMMUNICATIONS (AMERICA) INC, US
addr:	  One Microsoft Way Redmond WA 98052 US
online:	  24 » latency: 274 ms (270ms) 

see also:
   52.120.0.0/14    AS8075   MSFT Microsoft Corporation, US