One of our local supermarkets could not check out until we gave them one, so we found some to give them. For Belgium: https://www.bpost2.be/zipcodes/files/zipc

One of our local supermarkets could not check out until we gave them one, so we found some to give them. For Belgium: https://www.bpost2.be/zipcodes/files/zipcodes_num_nl_new.html https://www.bpost2.be/zipcodes/files/zipcodes_num_nl_new.htm... Fun ones are 0612 (Saint Nicholas) or 1110 (NATO). We got great mileage out of 3 suisses until they went bankrupt. Further random fact: The state and the postal services in Belgium don't always agree on the zip code. We found 1 location in Ghent where a monastery used to be, but it had been torn down and houses were built. The first inherited the address of the monastery, and hence had - on its own - a whole postal code, no street and no house number. But only for the postal services, not for the state (or the other way around, I dont remember). This location actually crashed the server for one geolocation provider. Just to say, we are hackers, we're good at these games. They want a zip code? Find one for your country and feed it to them.