64.255.136.0/23

ip:	64.255.136.0 ip-64-255-136-0.far.ideaone.ccidns.net
loc:	United States, Fargo (North Dakota)  
isp:	AS12042 Fidium » North Dakota Telephone Co. » IdeaOne Telecom 395.977 ms
route:	64.255.136.0/23, IDEAONE-1 - IdeaOne Telecom, US (Fargo (Points West)) ... 
reg:	64.255.128.0/19, US, ARIN, 2010-02-25
asn:	AS12042 - ENVENTIS Fidium, US
	  AS3257  - GTT-BACKBONE GTT, US
	  AS6461  - ZAYO-6461 Zayo Bandwidth, US
addr:	  3312 42nd St S Suite 100 Fargo ND 58104 US
online:	  23 » latency: 160 ms (160ms) 

see also:
   64.255.128.0/20  AS12042  IDEAONE-1 IdeaOne Telecom, US