In my area, we have a grid pattern, so there is one intersection that is the 0/0 mark, and addresses all start from there. Each block is 100 addresses, so the first block North would be 0-99 North Main St, the next would be 100-199 North Main St, and so on. Some numbers are skipped, because I think the address can even be used to know the number of feet from the corner the property starts at.

Now, if a street starts 6 blocks south of the 0 line, it’s addresses start at 600 South Something Road. It takes some getting used to, but once you learn it, it’s really useful to be able to get to a new place without directions.

Not OP, but I carry one from Star Tech. They are pricey, but if you need them, the are great.ine also has mass media support, so I can use a iso on my pc and boot the other computer to it, great for setting up servers when ilo/idrac decides to give you issues.