A Reservation Code (also known as a PNR, Record Locator, or Booking Reference) and a Ticket Number are two distinct but related identifiers for your travel. The Reservation Code is a 6-character alphanumeric string (e.g., ABCD12) that identifies your specific itinerary in the airline's computer system. It can include multiple people and multiple flight segments. Think of it as the "folder" that holds all your trip details. A Ticket Number is a unique 13-digit identifier (e.g., 0061234567890) that represents your actual financial contract with the airline. Each individual traveler on a booking has their own unique ticket number, even if they share the same Reservation Code. In 2026, the ticket number is the "gold standard" for security; while reservation codes can occasionally change due to schedule updates or rebookings, the ticket number remains the permanent record of your payment and right to fly. If you need to make a major change or claim a refund, the airline's customer service will often ask for the 13-digit ticket number to ensure they are accessing the correct individual's legal travel document.