157.240.0.0/16

ip:	157.240.0.0 9df00000.pub.nl.proxy.list
loc:	Germany, Frankfurt am Main (Hesse)  
isp:	AS32934 Facebook, Inc. » Facebook, Inc. » Facebook, Inc. 158.69 ms
route:	157.240.0.0/16, THEFA-3 - Facebook, Inc., DE (Frankfurt am Main) ... 
reg:	157.240.0.0/16, US, ARIN, 2015-05-14
addr:	  1601 Willow Rd. Menlo Park CA 94025 US
online:	  19.643 » latency: 140 ms (187ms) 

see also:
   157.240.0.0/17   AS32934  THEFA-3 Facebook, Inc., US
   157.240.0.0/24   AS32934  THEFA-3 Facebook, Inc., US
   157.240.3.0/24   AS32934  THEFA-3 Facebook, Inc., US
   157.240.5.0/24   AS32934  THEFA-3 Facebook, Inc., US
   157.240.8.0/24   AS32934  THEFA-3 Facebook, Inc., US
   157.240.9.0/24   AS32934  THEFA-3 Facebook, Inc., US
   157.240.11.0/24  AS32934  THEFA-3 Facebook, Inc., US
   157.240.12.0/24  AS32934  THEFA-3 Facebook, Inc., US
   157.240.13.0/24  AS32934  THEFA-3 Facebook, Inc., US
   157.240.14.0/24  AS32934  THEFA-3 Facebook, Inc., US
   157.240.15.0/24  AS32934  THEFA-3 Facebook, Inc., US
   157.240.17.0/24  AS32934  THEFA-3 Facebook, Inc., US
   157.240.22.0/24  AS32934  THEFA-3 Facebook, Inc., US
   157.240.24.0/24  AS32934  THEFA-3 Facebook, Inc., US
   157.240.25.0/24  AS32934  THEFA-3 Facebook, Inc., US
   157.240.26.0/24  AS32934  THEFA-3 Facebook, Inc., US
   157.240.27.0/24  AS32934  THEFA-3 Facebook, Inc., US
   157.240.29.0/24  AS32934  THEFA-3 Facebook, Inc., US
   157.240.30.0/24  AS32934  THEFA-3 Facebook, Inc., US
   157.240.31.0/24  AS32934  THEFA-3 Facebook, Inc., US