178.250.0.0/21

ip:	178.250.0.0 smtp.criteo.net
loc:	France, Paris (Île-de-France)  
isp:	 » Criteo FRANCE »  140.695 ms
route:	178.250.0.0/21, FR-CRITEO1-20100528 - Criteo Europe, FR (Paris) ... 
reg:	178.250.0.0/21, FR, RIPE, 2010-05-28
addr:	  32 rue Blanche 75009 Paris FRANCE
online:	  571 » latency: 37 ms (47ms) 

see also:
   178.250.1.0/24   AS44788  CRITEO-EUROPE-INFRA Criteo Europe Infrastructures, NL
   178.250.7.0/24   AS44788  CRITEO-EUROPE-INFRA Criteo Europe Infrastructures, FR