023655 area code — Oslo
Phone numbers in Oslo, Norway use the area code 023655. Numbers are written internationally as +47 23655.
How to call Oslo
- From abroad
- +47 23655 XXX XXXX
- Within Norway
- 023655 XXX XXXX
- Country calling code
- +47
About the 023655 area code
Locally the code appears as 023655; from outside Norway you replace the leading 0 with +47 23655.
Area codes like 023655 tie a phone number to a place — useful for knowing where a call or message originates, and for signing up to services that expect a local Norway number. To actually receive an SMS on a Norway number, a temporary or virtual line does the job without exposing your own SIM.
Frequently asked questions
What area code is Oslo?
Oslo uses the area code 023655, written internationally as +47 23655.
How do I call Oslo from another country?
Dial your international access code, then +47 23655, then the local number — dropping the national leading 0.
What time is it in Oslo?
Oslo is in the Europe/Oslo time zone; the live clock above shows the current local time.
Is 023655 a mobile or a landline code?
023655 is a geographic (landline) area code for Oslo. Mobile numbers in Norway use their own separate prefixes.