12.18.77.0/24

ip:	12.18.77.0 
loc:	United States, Dallas (Texas)  
isp:	AS13471 PFS Web » AT&T Services » Marriott International 763.759 ms
route:	12.18.77.0/24, NET12 - American Registry for Internet Numbers, US (New York) ... 
reg:	12.0.0.0/8, US, ARIN, 1983-08-23
asn:	AS13471 - AS13471 PFS Web, US
addr:	  PO Box 232290 Centreville VA 20120 US
online:	  1 » latency: 146 ms (146ms) 

see also:
   12.0.0.0/8       AS7018   NET12 American Registry for Internet Numbers, US
   12.0.0.0/9       AS7018   NET12 American Registry for Internet Numbers, US