addr: Network Research Center, , Main Bldg, Tsinghua Univ, Beijing 100084, China reg: CN, APNIC, 2005-03-03
210.30.58.0/24 CERNET-CN China Education and Research Network, CN 210.28.0.0/14
uu: u4: u6: dd: d4: d6:
AS4538 ➡️ ERX-CERNET-BKB China Education and Research Network Center, CN