72.50.237.0/24

ip:	72.50.237.0 
loc:	United States, Fond du Lac (Wisconsin)  
isp:	AS30536 Circle Computer Resources, Inc. » Circle Computer Resources, Inc. » ARK Data Centers LLC 751.463 ms
route:	72.50.237.0/24, INVOLTA - Circle Computer Resources, Inc., US (Des Moines) ... 
reg:	72.50.224.0/19, US, ARIN, 2008-03-24
asn:	AS30536 - CCR-AS Circle Computer Resources Inc., US
	  AS14230 - INVOLTA Involta, US
addr:	  845 Capital Drive SW Cedar Rapids IA 52404 US
online:	  9 » latency: 162 ms (162ms) 

see also:
   72.50.224.0/19   AS14230  INVOLTA-72-50-224-0--20 Involta, US
   72.50.236.0/23   AS30536  INVOLTA Circle Computer Resources, Inc., US