115.154.0.0/16

ip:	115.154.0.0 
loc:	China, Xi'an (Shaanxi)  
isp:	AS4538 China Education and Research Network Center » CERNET »  151.618 ms
route:	115.154.0.0/16, XAR-CERNET - China Education and Research Network, CN (Xi'an) ... 
reg:	115.154.0.0/15, CN, APNIC, 2008-08-15
asn:	AS4538 - ERX-CERNET-BKB China Education and Research Network Center, CN
	  AS4635  - HKIX-RS1 Hong Kong Internet Exchange--Route Server 1, HK
	  AS4837  - CHINA169-Backbone CHINA UNICOM China169 Backbone, CN
addr:	  Network Research Center Main Bldg Tsinghua Univ Beijing 100084 China
online:	  455 » latency: 276 ms (280ms) 

see also:
   115.154.0.0/15   AS4538   XAR-CERNET China Education and Research Network, CN