I think we need to separate out the numbers, upper case letters and lower case letters. There are nine numbers total. Let’s assume it’s a US address and 5 of those numbers will be the zip code, the the other four will be the street address. That could be a four number street address or a fewer than four number address on a numbered street. Each upper case letter will be the beginning of a word except that two of them will be the postal state abbreviation code. So... 480870402 GHSOHA esdksyynaeuav That’s all the help I can be so far. @Storf am I on the right track?