64.57.16.0/20

ip:	64.57.16.0 
loc:	United States, Ann Arbor (Michigan)  
isp:	AS11537 Internet2 » Internet2 » Internet2 142.359 ms
route:	64.57.16.0/20, INTER-395 - Internet2, US (Ann Arbor (King)) ... 
reg:	64.57.16.0/20, US, ARIN, 2006-10-17
asn:	AS11537 - INTERNET2-RESEARCH-EDU Internet2, US
addr:	  3520 Green CT Suite 200 Ann Arbor MI 48105 US
online:	  485 » latency: 79 ms (101ms) 

see also:
   64.57.20.0/23    AS11164  I2-NEWNET Internet2, US
   64.57.22.0/24    AS396955  I2-NEWNET Internet2, US
   64.57.22.0/24    AS396955  I2-NEWNET Internet2, US
   64.57.29.0/24    AS11164  I2-NEWNET Internet2, US