Internet IP’s

No two computers have the same IP address… Or do they? I was always tought that no two computers have the same IP address, that it was no possible. I have two modems, on two different accounts. With the same cable company, on two different speeds. and i checked my IP off the first one, and then checked my second one, and couldnt figure out why they looked the smae… I checked, doubble checked, and tripped checked. Both modems have the SAME EXACT IP Addresses… I knew it was not possible to make two run the same IP. And so i had two separate Accounts. I dont understand HOW its possible, or How it works… But Somehow it does… So thats al i have to report today 😀