Rob's Cipher

Can you break my cipher?

0004100916371019
1579103316091669
1039106916071049
1663103110611567
1051160117331103
1553187918471283

I'm going to pre-emptively make the claim that it's not supposed to be something you can figure out in less than a week, however if you make several correct guesses about what to do then you'll find that, in fact, this is easy.