iP or domain name lookup

an.com Server iP：

Current resolution：

domain resolution record：

2023-01-24-----2024-04-18 54.67.42.145

2023-01-24-----2023-10-18 52.8.134.32

2023-01-24-----2023-10-18 54.67.93.101

2021-07-22-----2022-07-30 68.68.98.160

2021-07-22-----2022-07-30 166.88.19.180

2021-07-22-----2022-07-30 166.88.19.181

2021-02-11-----2021-03-24 75.126.100.13

2019-04-08-----2020-12-24 75.126.102.238

2016-12-02-----2017-11-15 75.126.101.249

2016-11-23-----2016-12-01 75.126.102.231