Intrastate

First Character

The first character denotes the train’s origin.

• 1: Dry Creek to Keswick, Pelican Point (Adelaide metropolitan area)
• 2: Beyond Keswick to SA border with Victoria
• 3: All branch lines south of the Broken Hill line
• 4: Beyond Dry Creek to Port Augusta, Port Pirie, Spencer Junction
• 5: Crystal Brook East Junction to Broken Hill
• 6: Beyond Spencer Junction to Whyalla
• 7: All branch lines north of the Broken Hill line and east of the Darwin line
• 8: Beyond Spencer Junction to SA border on line to Perth
• 9: Beyond Tarcoola to SA border on line to Darwin

Second Character

The second character denotes the train’s destination.

• 1: Dry Creek to Keswick, Pelican Point (Adelaide metropolitan area)
• 2: Beyond Keswick to SA border with Victoria
• 3: All branch lines south of the Broken Hill line
• 4: Beyond Dry Creek to Port Augusta, Port Pirie, Spencer Junction
• 5: Crystal Brook East Junction to Broken Hill
• 6: Beyond Spencer Junction to Whyalla
• 7: All branch lines north of the Broken Hill line and east of the Darwin line
• 8: Beyond Spencer Junction to SA border on line to Perth
• 9: Beyond Tarcoola to SA border on line to Darwin

Third Character

The third character is any even or odd number not already in use.

Fourth Character

The fourth character denotes the direction of travel.

• Even number: Up train (towards Adelaide)
• Odd number: Down train (away from Adelaide)

Fifth character

The fifth character, S, denotes that the train is operating within South Australia