välialasid
Välialasid is a Finnish term that translates to "area codes" or "exchange codes" in English. It refers to the numerical prefixes used in telephone numbering plans to identify specific geographical regions or service types within a country. In Finland, välialasid are an integral part of the national telephone numbering system, ensuring that calls are routed to the correct destination.
The structure of Finnish telephone numbers typically includes an area code followed by the subscriber number.
Over time, the use of välialasid has evolved. While many still correspond to geographical areas, some have