All of Finland, including Åland, has the same country code, +358.
Finland's numbering plan was reorganised in 1996, with the number of area codes being reduced, and the trunk code being changed from 9 to 0. This meant that the area code for Helsinki also changed:
Within Finland
Outside Finland
Before 1996
90 xxx xxx
+358 0 xxx xxx
After 1996
09 xxx xxx
+358 9 xxx xxx
and 23 Related for: Telephone numbers in Finland information
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