iP or domain name lookup

pc5.a.sss55.us Server iP：

Current resolution：

domain resolution record：

2020-01-17-----2020-01-31 199.48.69.149

2019-07-09-----2019-12-15 198.44.227.129

2017-11-04-----2017-11-04 52.222.234.242

2017-11-04-----2017-11-04 54.230.74.103

2017-11-04-----2017-11-04 13.33.0.99

2017-11-04-----2017-11-04 52.85.193.58

2017-11-04-----2017-11-04 13.33.0.15

2017-11-04-----2017-11-04 54.230.74.131

2017-11-04-----2017-11-04 54.182.2.99

2017-11-04-----2017-11-04 52.84.163.220

2017-11-04-----2017-11-04 52.85.193.250

2017-11-04-----2017-11-04 54.230.74.247

2017-11-04-----2017-11-04 52.222.234.186

2017-10-08-----2017-10-08 54.182.2.226

2017-10-08-----2017-10-08 54.182.2.146

2017-10-07-----2017-10-07 52.222.234.206

2017-10-07-----2017-10-07 52.84.235.44

2017-10-07-----2017-10-07 52.222.234.93

2017-10-07-----2017-10-07 54.230.141.181

2017-10-07-----2017-10-07 54.230.74.110

2017-10-07-----2017-10-07 52.84.203.17

2017-10-07-----2017-10-07 52.222.234.4

2017-10-07-----2017-10-07 54.230.74.173

2017-10-07-----2017-10-07 52.84.203.184

2017-10-07-----2017-10-07 54.230.74.122

2017-10-07-----2017-10-07 54.230.74.160

2017-10-07-----2017-10-07 52.84.235.112