TNT tracking number format is usually comprised of 9 digits or starts with "GD", then 6 digits and ends with "WW". However, tracking numbers as follows is also a possible TNT tracking number.
GE + 9 digits + WW
GE + 9 digits + US
GE + 9 digits + CN
TNT tracking number example
TNT Express, a subsidiary of FedEx, provides international delivery services.
You can also track your TNT tracking number on trackingmore.com