iP or domain name lookup

am.iam.cnpc Server iP：

Current resolution：

domain resolution record：

2022-03-18-----2022-03-18 198.58.118.167

2022-03-08-----2022-03-08 45.79.19.196

2022-03-07-----2022-03-07 185.53.179.172

2021-06-09-----2021-10-26 208.91.197.27

2020-11-23-----2020-12-30 208.91.196.95

2020-12-03-----2020-12-16 52.128.23.153

2020-12-15-----2020-12-15 91.195.241.137

2020-11-17-----2020-12-02 69.172.201.208

2020-10-29-----2020-10-29 91.195.241.136

2020-08-18-----2020-09-03 3.234.181.234

2020-05-01-----2020-05-13 103.30.77.129