Identifies the street directional suffix of the service address.
VALID ENTRIES:
N = North
S = South
E = East
W = West
NE = Northeast
NW = Northwest
SE = Southeast
SW = Southwest
USAGE: This field is conditional.
NOTE 1: Optional when the SASN field is populated, otherwise prohibited.
DATA CHARACTERISTICS: 2 alpha characters
EXAMPLE: N W
NOTE 1: Where NW is the address street directional suffix for the following address example: 25W 450 1/2 SW Camino Ramon Lane NW, Floor 12, Wing 2, Suite 23A.