addr: Network Research Center, , Main Bldg, Tsinghua Univ, Beijing 100084, China reg: CN, APNIC, 2005-03-03
222.205.0.0/17 SHR-CERNET China Education and Research Network, CN
uu: u4: u6: dd: d4: d6:
AS4538 ➡️ ERX-CERNET-BKB China Education and Research Network Center, CN