6.240.0.0/12

ip:	6.240.0.0 
loc:	United States, Columbus (Ohio)  
isp:	AS1540 Headquarters, USAISC » CONUS-YPG » United States Department of Defense 678.059 ms
route:	6.240.0.0/12, CONUS-YPG-NET - Headquarters, USAISC, US (Columbus) ... 
reg:	6.0.0.0/8, US, ARIN, 1994-02-01
asn:	AS1540 - DNIC-ASBLK-01534-01546 Headquarters USAISC, US
addr:	  
online:	  6 » latency: 287 ms (286ms) 

see also:
   6.192.0.0/10     AS749    CONUS-YPG-NET Headquarters, USAISC, US