143.83.0.0/16

ip:	143.83.0.0 dha-0-0.health.mil
loc:	United States, Sierra Vista (Arizona)  
isp:	AS721 United States Department of Defense (DoD) » United States Department of Defense (DoD) » USAISC 1522.538 ms
route:	143.83.0.0/16, USDDD - United States Department of Defense (DoD), US (Sierra Vista (Fort Huachuca)) ... 
reg:	143.83.0.0/16, US, ARIN, 1997-03-03
asn:	AS721 - DNIC-ASBLK-00721-00726 United States Department of Defense (DoD), US
	  AS3356  - LEVEL3 Level 3 Parent, LLC, US
addr:	  NETC-ANC CONUS TNOSC Fort Huachuca AZ 85613 US
online:	  1 » latency: 306 ms (306ms) 

see also:
   143.83.2.0/24    AS5972   BAMC-NET Headquarters, USAISC, US
   143.83.32.0/21   AS5972   BAMC-NET Headquarters, USAISC, US
   143.83.40.0/21   AS5972   BAMC-NET Headquarters, USAISC, US
   143.83.48.0/21   AS5972   BAMC-NET Headquarters, USAISC, US
   143.83.56.0/21   AS5972   BAMC-NET Headquarters, USAISC, US
   143.83.64.0/20   AS5972   BAMC-NET Headquarters, USAISC, US
   143.83.80.0/20   AS5972   BAMC-NET Headquarters, USAISC, US
   143.83.96.0/21   AS5972   BAMC-NET Headquarters, USAISC, US
   143.83.104.0/22  AS5972   BAMC-NET Headquarters, USAISC, US
   143.83.112.0/20  AS5972   BAMC-NET Headquarters, USAISC, US
   143.83.128.0/17  AS5972   BAMC-NET Headquarters, USAISC, US