88.64.0.0/12

ip:	88.64.0.0 dslb-088-064-000-000.088.064.pools.vodafone-ip.de
loc:	Germany, Bremen (Bremen)  
isp:	AS3209 Vodafone GmbH » ARCOR-IP » Arcor AG 153.615 ms
route:	88.64.0.0/12, DE-ARCOR-20050815 - Vodafone GmbH, DE (Frankfurt am Main) ... 
reg:	88.64.0.0/12, DE, RIPE, 2005-08-15
asn:	AS3209 - VODANET Vodafone GmbH, DE
	  AS3356  - LEVEL3 Level 3 Parent, LLC, US
	  AS1273  - CW Vodafone Group PLC, EU
	  AS6461  - ZAYO-6461 Zayo Bandwidth, US
	  AS6939  - HURRICANE Hurricane Electric LLC, US
addr:	  Ferdinand-Braun-Platz 1 40549 Duesseldorf GERMANY
online:	  509.795 » latency: 65 ms (130ms) 

see also:
   88.79.0.0/18     AS3209   ARCOR-BACKBONE-BB-NET5 Arcor AG & Co.KG, DE