Question

What kind of code is used in this?

508 223 and so on and so forth...

Three numbers corresponds to one letter

Answer 1

those numbers are are hexadecimal. it's part of the binary world

Answer 2

There is no evidence that it is hexadecimal

Answer 3

it's just a substitution cipher, since a group of digits is substituted for a letter. It confuses the issue a bit, since it requires an extra step of discovering how many digits correspond to a letter, but then it succumbs to the usual analysis.