161.47.0.0/16

ip:	161.47.0.0 
loc:	United States, Chicago (Illinois)  
isp:	AS19994 Rackspace Hosting » Rackspace Hosting » GENESIS 513.725 ms
route:	161.47.0.0/16, RACKS-8 - Rackspace Hosting, US (Chicago) ... 
reg:	161.47.0.0/16, US, ARIN, 2015-09-11
addr:	  1 Fanatical Place Windcrest TX 78218 US
online:	  4.000 » latency: 111 ms (84ms) 

see also:
   161.47.0.0/18    AS19994  RACKS-8 Rackspace Hosting, US
   161.47.64.0/18   AS19994  RACKS-8 Rackspace Hosting, US
   161.47.128.0/17  AS19994  RACKS-8 Rackspace Hosting, US