Ok I'm going out on a limb and assuming that each tiger was assigned one number and no two tigers were assigned the same number. If they were assigned in the field and some tigers were numbered the same then I'm going to look like a idiot....cross my fingers.
Sorry...
"The first number is the company, the second number is the platoon and the third number is the order of the tank in the section. For example 414 would be the number for the fourth tank in the first platoon of the fourth company. On the company commander's and deputy commander's tanks, the second digit was 0 and the third digit 0, 1 or 2. Staff company normally had the numbers 001 to 003. In some units, roman numerals I, II and III were used."