Fruit Sticker Labels

Fruits are either grown organically,conventionally with pesticides and herbicides or they are genetically engineered . We can get information about fruits by looking at the numbers on the sticker labels which are either numbers with four or five digits. The first digit carries the useful information .

Most conventional fruits labels start with a digit ' 4 '
Organic fruits labels have 5 digits starting with digit ' 9 '
Genetically modified fruits labels start with the digit ' 8 '

Recently, I came across an Australian Navel orange sticker label which carries a number ' 6470 '.
What would be the info from this label ?

I would deduce that it must be a conventionally grown fruit because it does not bear the first digit '8' or '9' . Do you agree?