Norway • NPA 2381
☎️ Central Office Exchange (NXX)
+47 (2381) 230 Exchange Code
Technical registry directory for telephone subscriber numbers starting with +47 (2381) 230. Central office block assigned to Oslo, Norway.
Standard Subscriber Format
+47 (2381) 230-XXXX
Telecom Carrier
Local Network Carrier
Area Code (NPA)
2381
Primary Location
Oslo
Service Type
Landline
📋 Central Office Exchange 230 Routing Details
The 230 exchange code (central office prefix) operates within the 2381 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 (2381) 230 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
02381 230-1234or local national format. -
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International Calls: Dial
+47 2381 230-1234from outside Norway. -
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E.164 Standard:
+472381230XXXX
📞 Nearby Exchanges in Area Code 2381
View All Area Code 2381 Exchanges ›❓ Frequently Asked Questions
What area code is +47 (2381) 230?
Phone numbers starting with +47 (2381) 230 belong to the 2381 area code in Oslo, Norway, routed via exchange block 230.
How do I call a 230 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 2381, and the subscriber number.
Which provider operates the 230 prefix in Oslo?
Telecom services for the 230 exchange block in Oslo are primarily assigned to Local Network Carrier for Landline connections.