158.4.128.0/17

ip:	158.4.128.0 
loc:	United States, Sierra Vista (Arizona)  
isp:	AS1540 Headquarters, USAISC » United States Department of Defense (DoD) » USAISC 544.391 ms
route:	158.4.128.0/17, CARSON-NET1 - Headquarters, USAISC, US (Sierra Vista (Fort Huachuca)) ... 
reg:	158.4.0.0/16, US, ARIN, 1992-04-13
asn:	AS1540 - DNIC-ASBLK-01534-01546 Headquarters USAISC, US
	  AS27064 - DNIC-ASBLK-27032-27159 DoD Network Information Center, US
addr:	  NETC-ANC CONUS TNOSC Fort Huachuca AZ 85613 US
online:	  1 » latency: 277 ms (277ms) 

see also:
   158.0.0.0/13     AS721    NET158 Various Registries (Maintained by ARIN), US