Ireland got a postcode system in 2015 (the last time they considered implementing postcodes to improve autosorting, they were so late to the party that "an post" (Irish postal service) had OCR machines good enough to just read the whole address) which assigns each residence in the country a 7-digit alphanumerical code. Called an "Eircode" [1] It is purported to be a solution to packages getting lost or delayed, and an unambiguous way of giving someone a building's address.

An Eircode can be resolved into a full postal address, and GPS co-ordinates for the address.

e.g, here's some Eircodes;

Facebook's headquarters: D02 Y098

President's house: D08 E1W3

Data protection commission: D02 RD28

To get the info for any of these, check out: https://finder.eircode.ie/

Personal note: I'm not too jazzed on the specifics of the implementation, but it sure is handy when you're shitfaced and can trivially explain exactly where you live to a food-delivery driver over the phone.

[1]: https://en.wikipedia.org/wiki/Postal_addresses_in_the_Republ...