71.255.0.0/18

ip:	71.255.0.0 
loc:	United States, Newark (New Jersey)  
isp:	AS701 Verizon Business » Verizon Business » Verizon Business 629.68 ms
route:	71.255.0.0/18, VIS-BLOCK - Verizon Business, US (Newark) ... 
reg:	71.255.0.0/18, US, ARIN, 2004-11-09
addr:	  22001 Loudoun County Pkwy Ashburn VA 20147 US
online:	  4.786 » latency: 119 ms (132ms) 

see also:
   71.255.0.0/19    AS701    VIS-BLOCK Verizon Business, US
   71.255.32.0/20   AS701    VIS-BLOCK Verizon Business, US
   71.255.48.0/20   AS701    VIS-BLOCK Verizon Business, US