Denmark • NPA 51
☎️ Central Office Exchange (NXX)
+45 (51) 255 Exchange Code
Technical registry directory for telephone subscriber numbers starting with +45 (51) 255. Central office block assigned to Mobile Network, Denmark.
Standard Subscriber Format
+45 (51) 255-XXXX
Telecom Carrier
Local Network Carrier
Area Code (NPA)
51
Primary Location
Mobile Network
Service Type
Landline
📋 Central Office Exchange 255 Routing Details
The 255 exchange code (central office prefix) operates within the 51 Numbering Plan Area (NPA) servicing Mobile Network, Denmark. All assigned subscriber lines in this block follow ITU-T E.164 national routing protocols.
Telecommunication services within the +45 (51) 255 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
051 255-1234or local national format. -
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International Calls: Dial
+45 51 255-1234from outside Denmark. -
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E.164 Standard:
+4551255XXXX
📞 Nearby Exchanges in Area Code 51
View All Area Code 51 Exchanges ›❓ Frequently Asked Questions
What area code is +45 (51) 255?
Phone numbers starting with +45 (51) 255 belong to the 51 area code in Mobile Network, Denmark, routed via exchange block 255.
How do I call a 255 exchange number from abroad?
To call this prefix internationally, dial your local exit code (e.g., 011 in North America or + globally), followed by +45, then 51, and the subscriber number.
Which provider operates the 255 prefix in Mobile Network?
Telecom services for the 255 exchange block in Mobile Network are primarily assigned to Local Network Carrier for Landline connections.