What is the convention for assigning Hollander Interchange numbers?

The convention for assigning Hollander Interchange numbers above 2000 is:

Acura71630thru72129
Alfa Romeo58130thru58629
Audi58630thru59129
BMW59130thru59629
71150thru71629
86000thru86999
Chrysler2000thru2999
Cooper59130thru59629
71150thru71629
86000thru86999
Fiat 50061630thru62129
Ford3000thru3999
10001thru10999
General Motors
Domestic,
Buick4000thru4499
Cadillac4500thru4999
Chevrolet/GMC5000thru5999
Oldsmobile6000thru6499
Pontiac6500thru6999
Saturn7000thru7999
Standard Steel Type8000thru8999
Foreign (includes GEO)60130thru60629
Honda63140thru63629
63630thru64129
Genesis70630thru71129
Hyundai70630thru71129
Infiniti73630thru74129
Isuzu64130thru64629
Jaguar59630thru60129
Jeep9000thru9999
Kia70630thru71129
74530thru75129
Lexus74130thru74629
Mazda64630thru65129
Mercedes-Benz65130thru65629
85000thru85999
Mitsubishi65630thru66129
Nissan62130thru62629
62700thru63129
Porsche67130thru67629
Rover72130thru72629
Saab68130thru68629
Scion69130thru69629
75150thru75699
Subaru68630thru69129
Suzuki72630thru73129
Toyota69130thru69629
75150thru75699
Volkswagen69630thru70129
Volvo70130thru70629