iP or domain name lookup

cdn.oas-eu1.adnxs.com Server iP：

Current resolution：

domain resolution record：

2017-08-05-----2020-04-12 151.101.77.108

2019-04-26-----2020-04-12 151.101.229.108

2019-04-26-----2020-04-12 151.101.109.108

2019-06-10-----2019-07-16 151.101.41.108

2019-04-26-----2019-04-26 151.101.25.108

2019-04-26-----2019-04-26 151.101.197.108

2017-08-06-----2017-08-06 23.41.66.183

2017-08-06-----2017-08-06 23.58.235.43

2017-08-05-----2017-08-05 151.101.73.108

2017-08-05-----2017-08-05 23.2.136.161

2017-08-05-----2017-08-05 151.101.65.108

2017-08-05-----2017-08-05 23.207.115.54

2017-08-05-----2017-08-05 184.29.101.161

2017-08-05-----2017-08-05 23.57.47.155

2017-08-05-----2017-08-05 104.75.249.122

2017-08-05-----2017-08-05 2.17.29.209