There are several ways people identify a region or city without naming it directly, for various reasons (being quirky/lowkey, for branding…). For example:
– Dutch people often use telephone area codes, so 010 = Rotterdam, 020 = Amsterdam…; tons of local businesses use area codes as their name, e.g. Coffeeshop 010, Pizza 076…
– Belgians, on the other hand, use postcodes: 9000 = Gent, 3600 = Genk…; often local political parties use it in their names, e.g. Samen2310 in Rijkevorsel, Ons 2340 in Beerse…
– French people famously use Département codes, which you find on number plates. Notable examples include "le 93" = Seine-Saint-Denis, and just everything with 13 in Marseille. (I think there's even a song)
– Germans often use number plate area codes, so B = Berlin, HH = Hamburg, BÜS = Büsingen ;). Though its colloquial use seems to be rather limited.
Do other countries also use these kinds of shorthands?