64.57.20.0/23

ip:	64.57.20.0 hundredge-0-0-0-28.658.core1.star.net.internet2.edu
loc:	United States, Denver (Colorado)  
isp:	AS11164 Internet2 » Internet2 » Internet2 150.331 ms
route:	64.57.20.0/23, I2-NEWNET - Internet2, US (Denver) ... 
reg:	64.57.16.0/20, US, ARIN, 2006-10-17
asn:	AS11164 - INTERNET2-I2PX Internet2, US
	  AS6461  - ZAYO-6461 Zayo Bandwidth, US
	  AS2497  - IIJ Internet Initiative Japan Inc., JP
	  AS3491  - CONSOLE-CONNECT-ASN PCCW Global, Inc., US
	  AS6939  - HURRICANE Hurricane Electric LLC, US
addr:	  3520 Green CT Suite 200 Ann Arbor MI 48105 US
online:	  77 » latency: 87 ms (87ms) 

see also:
   64.57.16.0/20    AS11537  I2-NEWNET Internet2, US