Switzerland • NPA 21
☎️ Central Office Exchange (NXX)
+41 (21) 669 Exchange Code
Technical registry directory for telephone subscriber numbers starting with +41 (21) 669. Central office block assigned to Lausanne, Switzerland.
Standard Subscriber Format
+41 (21) 669-XXXX
Telecom Carrier
Local Network Carrier
Area Code (NPA)
21
Primary Location
Lausanne
Service Type
Landline
📋 Central Office Exchange 669 Routing Details
The 669 exchange code (central office prefix) operates within the 21 Numbering Plan Area (NPA) servicing Lausanne, Switzerland. All assigned subscriber lines in this block follow ITU-T E.164 national routing protocols.
Telecommunication services within the +41 (21) 669 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
021 669-1234or local national format. -
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International Calls: Dial
+41 21 669-1234from outside Switzerland. -
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E.164 Standard:
+4121669XXXX
📞 Nearby Exchanges in Area Code 21
View All Area Code 21 Exchanges ›❓ Frequently Asked Questions
What area code is +41 (21) 669?
Phone numbers starting with +41 (21) 669 belong to the 21 area code in Lausanne, Switzerland, routed via exchange block 669.
How do I call a 669 exchange number from abroad?
To call this prefix internationally, dial your local exit code (e.g., 011 in North America or + globally), followed by +41, then 21, and the subscriber number.
Which provider operates the 669 prefix in Lausanne?
Telecom services for the 669 exchange block in Lausanne are primarily assigned to Local Network Carrier for Landline connections.