iP or domain name lookup

xc.mail.chinaunicom.cn Server iP：

Current resolution：

domain resolution record：

2024-10-11-----2024-10-30 123.138.66.98

2024-10-11-----2024-10-30 123.138.11.225

2024-10-11-----2024-10-30 123.138.11.206

2024-10-11-----2024-10-30 123.138.11.224

2024-10-11-----2024-10-30 123.138.66.97

2024-10-11-----2024-10-30 123.138.11.226

2024-10-11-----2024-10-30 123.138.66.96

2024-10-11-----2024-10-30 123.138.11.47

2024-10-28-----2024-10-30 123.138.11.223

2024-10-11-----2024-10-28 123.138.11.204