55.0.0.0/8

ip:	55.0.0.0 
loc:	United States, Columbus (Ohio)  
isp:	AS721 United States Department of Defense (DoD) » DoD Network Information Center » United States Department of Defense 2243.357 ms
route:	55.0.0.0/8, USDDD - United States Department of Defense (DoD), US (Sierra Vista (Fort Huachuca)) ... 
reg:	55.0.0.0/8, US, ARIN, 1996-10-26
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:	  18 » latency: 203 ms (194ms) 

see also:
   55.1.0.0/16      AS359    CONUS-RCAS Headquarters, USAISC, US
   55.2.0.0/16      AS344    CONUS-RCAS Headquarters, USAISC, US
   55.2.2.0/24      AS344    CONUS-RCAS Headquarters, USAISC, US
   55.2.3.0/24      AS344    CONUS-RCAS Headquarters, USAISC, US
   55.2.4.0/24      AS344    CONUS-RCAS Headquarters, USAISC, US
   55.2.5.0/24      AS344    CONUS-RCAS Headquarters, USAISC, US
   55.2.6.0/24      AS344    CONUS-RCAS United States Department of Defense (DoD), US
   55.2.8.0/24      AS344    CONUS-RCAS Headquarters, USAISC, US
   55.2.9.0/24      AS344    CONUS-RCAS Headquarters, USAISC, US
   55.2.10.0/24     AS344    CONUS-RCAS Headquarters, USAISC, US
   55.2.13.0/24     AS344    CONUS-RCAS Headquarters, USAISC, US
   55.2.14.0/24     AS344    CONUS-RCAS Headquarters, USAISC, US
   55.2.16.0/24     AS344    CONUS-RCAS Headquarters, USAISC, US
   55.2.17.0/24     AS344    CONUS-RCAS Headquarters, USAISC, US
   55.2.18.0/24     AS344    CONUS-RCAS Headquarters, USAISC, US
   55.2.20.0/24     AS344    CONUS-RCAS Headquarters, USAISC, US
   55.2.21.0/24     AS344    CONUS-RCAS Headquarters, USAISC, US
   55.2.22.0/23     AS344    CONUS-RCAS Headquarters, USAISC, US