Use APKPure App
Get External IP old version APK for Android
당신의 IP 주소를 알고 및 복사 및 당신이 원하는대로 붙여 넣기!
This simple application will show your IP addresses(default local & external).It will show them in text box from where you can copy&paste easily.
GPL and source code is available at:
https://github.com/kost/external-ip