49.52.0.0/19

ip:	49.52.0.0 
loc:	China, Putuo (Shanghai)  
isp:	AS4538 China Education and Research Network Center » CERNET »  753.299 ms
route:	49.52.0.0/19, SHR-CERNET - China Education and Research Network, CN (Putuo (Putuo Qu)) ... 
reg:	49.52.0.0/14, CN, APNIC, 2010-10-04
asn:	AS4538 - ERX-CERNET-BKB China Education and Research Network Center, CN
	  AS4837  - CHINA169-Backbone CHINA UNICOM China169 Backbone, CN
addr:	  Network Research Center Main Bldg Tsinghua Univ Beijing 100084 China
online:	  280 » latency: 294 ms (288ms) 

see also:
   49.52.0.0/14     AS4538   SHR-CERNET China Education and Research Network, CN
   49.52.0.0/15     AS4538   SHR-CERNET China Education and Research Network, CN