iP or domain name lookup

pr.smtproxies.com Server iP：

Current resolution：

domain resolution record：

2020-02-15-----2021-04-12 46.4.203.0

2020-11-25-----2021-04-12 54.39.161.208

2021-04-12-----2021-04-12 23.108.102.156

2020-11-25-----2021-03-18 54.39.161.209

2020-11-25-----2021-03-18 158.69.176.129

2020-11-25-----2021-03-18 192.95.37.29

2020-11-25-----2021-03-18 54.39.163.72

2021-03-18-----2021-03-18 138.199.61.32

2021-03-18-----2021-03-18 37.120.237.130

2021-03-18-----2021-03-18 23.108.103.33

2020-02-15-----2021-03-17 188.40.143.170

2020-11-25-----2021-03-17 54.39.161.229

2021-03-17-----2021-03-17 188.40.197.5

2021-03-17-----2021-03-17 37.120.237.98

2021-03-17-----2021-03-17 51.222.101.96

2021-03-17-----2021-03-17 51.222.101.192

2021-02-28-----2021-02-28 188.40.20.100

2020-11-25-----2020-11-25 178.63.122.40

2020-02-15-----2020-02-15 46.4.174.10

2020-02-15-----2020-02-15 46.4.159.32

2020-02-15-----2020-02-15 46.4.151.230

2020-02-15-----2020-02-15 144.76.181.10

2020-02-15-----2020-02-15 46.4.194.70

2020-02-15-----2020-02-15 46.4.201.40

2020-02-15-----2020-02-15 144.76.143.40