506 (DFI) ID Number Qualifier
TYPE=ID MIN=2 MAX=2
Code identifying the type of identification number of Depository Financial Institution (DFI)
01 ABA Transit Routing Number Including Check Digits (9 digits)
02 Swift Identification (8 or 11 characters)
03 CHIPS (3 or 4 digits)
04 Canadian Bank Branch and Institution Number
ZZ Mutually Defined