iP or domain name lookup

123.nj123.net.cn Server iP：

Current resolution：

domain resolution record：

2019-07-16-----2019-08-27 221.231.140.184

2017-05-11-----2017-05-11 115.231.187.129

2017-05-11-----2017-05-11 162.159.211.76

2017-05-11-----2017-05-11 117.34.14.129

2017-05-11-----2017-05-11 116.31.127.129

2017-05-11-----2017-05-11 42.236.94.224

2017-05-11-----2017-05-11 221.231.140.185

2017-05-11-----2017-05-11 122.190.3.129

2016-12-26-----2016-12-26 221.231.140.198