023658 area code — Oslo
023658 is the local dialing code used in Oslo, Norway. Numbers are written internationally as +47 23658.
How to call Oslo
- From abroad
- +47 23658 XXX XXXX
- Within Norway
- 023658 XXX XXXX
- Country calling code
- +47
About the 023658 area code
A full number here takes the form +47 23658 XXX XXXX — the 23658 identifies Oslo within Norway's numbering plan.
Area codes like 023658 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 023658, written internationally as +47 23658.
How do I call Oslo from another country?
Dial your international access code, then +47 23658, 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 023658 a mobile or a landline code?
023658 is a geographic (landline) area code for Oslo. Mobile numbers in Norway use their own separate prefixes.