Sweden • NPA 20
☎️ Central Office Exchange (NXX)
+46 (20) 307 Exchange Code
Technical registry directory for telephone subscriber numbers starting with +46 (20) 307. Central office block assigned to Toll-Free Services, Sweden.
Standard Subscriber Format
+46 (20) 307-XXXX
Telecom Carrier
Local Network Carrier
Area Code (NPA)
20
Primary Location
Toll-Free Services
Service Type
Landline
📋 Central Office Exchange 307 Routing Details
The 307 exchange code (central office prefix) operates within the 20 Numbering Plan Area (NPA) servicing Toll-Free Services, Sweden. All assigned subscriber lines in this block follow ITU-T E.164 national routing protocols.
Telecommunication services within the +46 (20) 307 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
020 307-1234or local national format. -
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International Calls: Dial
+46 20 307-1234from outside Sweden. -
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E.164 Standard:
+4620307XXXX
📞 Nearby Exchanges in Area Code 20
View All Area Code 20 Exchanges ›❓ Frequently Asked Questions
What area code is +46 (20) 307?
Phone numbers starting with +46 (20) 307 belong to the 20 area code in Toll-Free Services, Sweden, routed via exchange block 307.
How do I call a 307 exchange number from abroad?
To call this prefix internationally, dial your local exit code (e.g., 011 in North America or + globally), followed by +46, then 20, and the subscriber number.
Which provider operates the 307 prefix in Toll-Free Services?
Telecom services for the 307 exchange block in Toll-Free Services are primarily assigned to Local Network Carrier for Landline connections.