Identifies the type of billing account associated to the Billing Account Number.
VALID ENTRIES:
BAN
BILL ID
CORP ID
TCORP ID
NOTE 1: A BAN valid entry is associated to option 1 or Metro Private Line (MPL).
NOTE 2: A BILL ID or TCORP ID valid entry is associated to option 2.
NOTE 3: A CORP ID valid entry is associated to option 4.
USAGE: This field is conditional.
NOTE 1: Required when the BAN field on the ASR Form is populated, otherwise prohibited.
DATA CHARACTERISTICS: 8 alpha characters
EXAMPLE: B A N