The only sort codes available to the public at present are 04-00-04 and 04-00-03 (as we’ve exhausted the account numbers available on 04).
The other sort codes are mostly used for testing and stuff 
The only sort codes available to the public at present are 04-00-04 and 04-00-03 (as we’ve exhausted the account numbers available on 04).
The other sort codes are mostly used for testing and stuff