166.40.0.0/16

ip:	166.40.0.0 
loc:	United States, Washington (District of Columbia)  
isp:	AS3371 Verizon Business » Verizon Business » Verizon Business 887.762 ms
route:	166.40.0.0/16, MCI-NETCS3 - Verizon Business, US (Washington D.C.) ... 
reg:	166.40.0.0/16, US, ARIN, 1996-12-09
addr:	  22001 Loudoun County Pkwy Ashburn VA 20147 US
online:	  1 » latency: 234 ms (234ms) 

see also:
   166.32.0.0/12    AS3371   NET166 Various Registries (Maintained by ARIN), US
   166.40.112.0/20  AS3372   MCI-NETCS3 Verizon Business, US
   166.40.161.0/24  AS3372   MCI-NETCS3 Verizon Business, US
   166.40.162.0/24  AS3372   MCI-NETCS3 Verizon Business, US
   166.40.163.0/24  AS3372   MCI-NETCS3 Verizon Business, US
   166.40.164.0/23  AS3372   MCI-NETCS3 Verizon Business, US
   166.40.166.0/23  AS3372   MCI-NETCS3 Verizon Business, US
   166.40.169.0/24  AS3372   MCI-NETCS3 Verizon Business, US
   166.40.172.0/23  AS3372   MCI-NETCS3 Verizon Business, US
   166.40.216.0/21  AS3372   MCI-NETCS3 Verizon Business, US