211.80.48.0/20

ip:	211.80.48.0 
loc:	China, Haidian (Beijing)  
isp:	AS4538 China Education and Research Network Center » China Education and Research Network Center » Cernet 1137.621 ms
route:	211.80.48.0/20, CERNET - China Education and Research Network, CN (Haidian (Haidian Qu)) ... 
reg:	211.80.0.0/16, CN, APNIC, 2000-08-01
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:	  543 » latency: 302 ms (329ms) 

see also:
   211.80.0.0/13    AS4538   APNIC-AP Asia Pacific Network Information Centre, AU
   211.80.0.0/18    AS4538   CERNET China Education and Research Network, CN
   211.80.32.0/19   AS4538   CERNET China Education and Research Network, CN