58.207.0.0/16

ip:	58.207.0.0 
loc:	China, Haidian (Beijing)  
isp:	AS4538 China Education and Research Network Center » CERNET »  131.041 ms
route:	58.207.0.0/16, CIS-CERNET - China Education and Research Network, CN (Haidian (Haidian Qu)) ... 
reg:	58.200.0.0/13, CN, APNIC, 2005-05-26
asn:	AS4538 - ERX-CERNET-BKB China Education and Research Network Center, CN
	  AS4837  - CHINA169-Backbone CHINA UNICOM China169 Backbone, CN
	  AS4635  - HKIX-RS1 Hong Kong Internet Exchange--Route Server 1, HK
addr:	  Network Research Center Main Bldg Tsinghua Univ Beijing 100084 China
online:	  289 » latency: 297 ms (293ms) 

see also:
   58.192.0.0/12    AS4538   APNIC-AP Asia Pacific Network Information Centre, AU
   58.200.0.0/13    AS4538   CIS-CERNET China Education and Research Network, CN