Identifies the number that may be generated by the provider mechanized systems or manually assigned by the provider to identify a customer's request for service.
NOTE 1: This entry must be identical to the ASR NO field entry on the ASR Form.
USAGE: This field is conditional.
NOTE 1: Required on all supplements when PON is not unique, otherwise optional.
DATA CHARACTERISTICS: 18 alpha/numeric characters maximum
EXAMPLE: 3 1 2 3 4 5 6 7 8 9 0 1