131.56.0.0/16

ip:	131.56.0.0 
loc:	United States, Montgomery (Alabama)  
isp:	AS56 United States Department of Defense (DoD) » United States Department of Defense (DoD) » Air Force Systems Networking 728.71 ms
route:	131.56.0.0/16, USDDD - United States Department of Defense (DoD), US (Frankfurt am Main) ... 
reg:	131.56.0.0/16, US, ARIN, 1989-10-13
asn:	AS56 - DNIC-AS-00056 United States Department of Defense (DoD), US
	  AS27065 - DNIC-ASBLK-27032-27159 DoD Network Information Center, US
addr:	  501 EAST MOORE DR. BLDG 884 RM 1100 GUNTHER ANNEX MAXWELL AFB AL 36114 US

see also:
   131.32.0.0/11    AS721    NET-131-32-0-0-1 Air Force Systems Networking, US
   131.56.120.0/24  AS56     CROUGHTON-NET Air Force Systems Networking, US