Hello,
It seems your operator gives you a private IP. It could be an APN issue. If you are using auto APN settings, navigate Network > Mobile, uncheck AutoAPN box and write in your custom one. You can search for your operator APN phrase over the internet or call them directly. Also, it could be, that your operator provides you only with private IP (10.10....) and you will need to change plan to get a public one.
Regards.