204.136.0.0/21

ip:	204.136.0.0 
loc:	United States, St Louis (Missouri)  
isp:	 » Ameren Corp. » Ameren Corp. 132.21 ms
route:	204.136.0.0/21, AMEREN-2 - Ameren Corp., US (St Louis (Downtown West)) ... 
reg:	204.136.0.0/21, US, ARIN, 1994-08-29
addr:	  1901 Chouteau Ave. St. Louis MO 63103 US
online:	  1 » latency: 133 ms (133ms) 

see also:
   204.136.7.0/24   AS17215  AMERENCORPORATEINET-7 Ameren Corp., US