223.68.0.0/19

ip:	223.68.0.0 
loc:	China, Nanjing (Jiangsu)  
isp:	AS56046 China Mobile communications corporation » China Mobile communications corporation » China Mobile 2339.792 ms
route:	223.68.0.0/19, CMNET - China Mobile Communications Corporation, CN (Qinnan) ... 
reg:	223.64.0.0/11, CN, APNIC, 2010-07-01
asn:	AS56046 - CMNET-JIANGSU-AP China Mobile Communications Corporation, CN
	  AS9808  - CHINAMOBILE-CN China Mobile Communications Group Co., Ltd., CN
addr:	  China Mobile Communications Corporation 29 Jinrong Ave. Xicheng District Beijing 100032
online:	  1.349 » latency: 297 ms (305ms) 

see also:
   223.64.0.0/10    AS9808   APNIC-AP Asia Pacific Network Information Centre, AU
   223.68.0.0/16    AS56046  CMNET China Mobile Communications Corporation, CN