Norway • NPA 210
☎️ Central Office Exchange (NXX)
+47 (210) 831 Exchange Code
Technical registry directory for telephone subscriber numbers starting with +47 (210) 831. Central office block assigned to Oslo, Norway.
Standard Subscriber Format
+47 (210) 831-XXXX
Telecom Carrier
Local Network Carrier
Area Code (NPA)
210
Primary Location
Oslo
Service Type
Landline
📋 Central Office Exchange 831 Routing Details
The 831 exchange code (central office prefix) operates within the 210 Numbering Plan Area (NPA) servicing Oslo, Norway. All assigned subscriber lines in this block follow ITU-T E.164 national routing protocols.
Telecommunication services within the +47 (210) 831 prefix range are primarily provisioned by Local Network Carrier, delivering local landline voice lines and network routing.
🌐 Dialing Instructions
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Domestic Calls: Dial
0210 831-1234or local national format. -
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International Calls: Dial
+47 210 831-1234from outside Norway. -
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E.164 Standard:
+47210831XXXX
📞 Nearby Exchanges in Area Code 210
View All Area Code 210 Exchanges ›❓ Frequently Asked Questions
What area code is +47 (210) 831?
Phone numbers starting with +47 (210) 831 belong to the 210 area code in Oslo, Norway, routed via exchange block 831.
How do I call a 831 exchange number from abroad?
To call this prefix internationally, dial your local exit code (e.g., 011 in North America or + globally), followed by +47, then 210, and the subscriber number.
Which provider operates the 831 prefix in Oslo?
Telecom services for the 831 exchange block in Oslo are primarily assigned to Local Network Carrier for Landline connections.