Norway • NPA 2135
☎️ Central Office Exchange (NXX)
+47 (2135) 355 Exchange Code
Technical registry directory for telephone subscriber numbers starting with +47 (2135) 355. Central office block assigned to Oslo, Norway.
Standard Subscriber Format
+47 (2135) 355-XXXX
Telecom Carrier
Local Network Carrier
Area Code (NPA)
2135
Primary Location
Oslo
Service Type
Landline
📋 Central Office Exchange 355 Routing Details
The 355 exchange code (central office prefix) operates within the 2135 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 (2135) 355 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
02135 355-1234or local national format. -
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International Calls: Dial
+47 2135 355-1234from outside Norway. -
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E.164 Standard:
+472135355XXXX
📞 Nearby Exchanges in Area Code 2135
View All Area Code 2135 Exchanges ›❓ Frequently Asked Questions
What area code is +47 (2135) 355?
Phone numbers starting with +47 (2135) 355 belong to the 2135 area code in Oslo, Norway, routed via exchange block 355.
How do I call a 355 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 2135, and the subscriber number.
Which provider operates the 355 prefix in Oslo?
Telecom services for the 355 exchange block in Oslo are primarily assigned to Local Network Carrier for Landline connections.