146.137.252.0/22

ip:	146.137.252.0 
loc:	United States, Munster (Indiana)  
isp:	AS683 Argonne National Laboratory » Argonne National Laboratory » Argonne National Laboratory 1225.498 ms
route:	146.137.252.0/22, ARGONNE2-B - Argonne National Laboratory, US (Chicago) ... 
reg:	146.137.0.0/16, US, ARIN, 1991-02-11
asn:	AS683 - ARGONNE-AS Argonne National Laboratory, US
	  AS293   - ESNET ESnet, US
addr:	  9700 South Cass Avenue Argonne IL 60439 US
online:	  39 » latency: 104 ms (95ms) 

see also:
   146.137.0.0/16   AS683    ARGONNE2-B Argonne National Laboratory, US