Identifies the access service group assigned to a particular circuit or group of circuits.
NOTE 1: This number appears on the Customer Service Record (the billing service charge details) which was forwarded to the customer when the service was installed, or, when there was a change to the bill resulting from service order activity. The ASG may also be provided on the Confirmation Notice Form (CN) by the provider.
NOTE 2: If a new ASG is being requested then the only valid entry is "N".
USAGE: This field is optional.
DATA CHARACTERISTICS: 6 alpha/numeric characters
EXAMPLE: 1 2 3