IP address

I'm doing some project with 'raspberry pi', and I need IP address of it.

But the address I get is 58.xxx.xxx.xxx and it doesn't work.(I used putty.)

I'm now living in Korea, and usually the IP address here is 192.xxx.xxx.xxx

I want to know what's the problem. Is it because it's not wireless? I mean, I used LAN cable not wifi thing...