Hot dogs will last from 6 months to a year if kept frozen although after 6 months in the freezer the hot dogs will start to lose their freshness.
But the hot dogs will still be safe to eat up to a year and sometimes longer in the freezer.
Hot dogs in the refrigerator are usually good for up to a week or two weeks if kept refrigerated but keeping the hot dogs frozen helps extend the life of the hot dogs.
I buy lots of hot dogs when they go on sale and freeze them in my deep freezer and they last for 2 years and sometimes longer.
But usually I use the hot dogs from the freezer within a year but sometimes I have some leftover for 2 years and the hot dogs are still good to eat although not as fresh.