172.217.4.0/24

ip:	172.217.4.0 atl14s80-in-f0.1e100.net
loc:	United States, Atlanta (Georgia)  
isp:	AS15169 Google LLC » Google LLC » Google LLC 1.192 ms
route:	172.217.4.0/24, GOOGLE - Google LLC, US (Atlanta) ... 
reg:	172.217.0.0/16, US, ARIN, 2012-04-16
asn:	AS15169 - GOOGLE Google LLC, US
	  AS3257  - GTT-BACKBONE GTT, US
	  AS6453  - AS6453 TATA COMMUNICATIONS (AMERICA) INC, US
	  AS2497  - IIJ Internet Initiative Japan Inc., JP
	  AS3356  - LEVEL3 Level 3 Parent, LLC, US
	  AS7018  - ATT-INTERNET4 AT&T Enterprises, LLC, US
	  AS6939  - HURRICANE Hurricane Electric LLC, US
addr:	  1600 Amphitheatre Parkway Mountain View CA 94043 US
online:	  32 » latency: 9 ms (9ms) 

see also:
   172.217.0.0/16   AS15169  GOOGLE Google LLC, US