Great. So any 8 digit numeric number is valid, we just happen to be at 12XXXXXX ?
Anything that comes from an API will reference an 8 digit company number but paper (pdf image) may contain numbers with stripped zero's.
I am on top of the 2 char 6 numbers. variants I think, but Frank's comment " Leading zeros will also appear after early numbers that have an alpha prefix" is a new one on me. I thought anything that started with an alpha was going to be 8 digit. Does that mean I can have say a 6 digit SC number ??