Postal codes in the Faroe Islands consist of the two letter ISO 3166 code "FO", followed by three digits:
P/F Postverk Føroya Óðinshædd 22 FO-100 Tórshavn FAROE ISLANDS
PO Box addresses Separate postal codes are used for PO Box addresses, known in Faroese as postsmogur, in the capital Tórshavn and some other towns:
HN Jacobsens Bókahandil Postboks 55 FO-110 Tórshavn FAROE ISLANDS
Former Danish postal codes Previously, the Faroe Islands formed part of the Danish postcode system, introduced in 1967, which also included Greenland. This used the number range 3800 to 3899, and the "DK" prefix for Denmark:
Føroya Ferdamannafelag DK-3800 Tórshavn FAROE ISLANDS
Later on, the "FR" prefix was used:
DGU Føroyadeild Debesartrøð FR 3800 Tórshavn FAROE ISLANDS
When the three-digit postal codes were first introduced, they were used for PO Box addresses, alongside the existing four-digit ones.
References
External links Postnummur í Føroyum