Identifies the simulated facilities group number and may also indicate the group number that is associated with a line register.
NOTE 1: The first character identifies the group indicator.
NOTE 2: The following five characters identify either the group number or a range of group numbers.
USAGE: This field is conditional.
NOTE 1: Prohibited on requests with DMS or electro-mechanical WATS serving offices, otherwise required.
DATA CHARACTERISTICS: 6 alpha/numeric characters
EXAMPLE: A 2 2 2