Sweden • NPA 643
☎️ Central Office Exchange (NXX)
+46 (643) 557 Exchange Code
Technical registry directory for telephone subscriber numbers starting with +46 (643) 557. Central office block assigned to Hallen-Oviken, Sweden.
Standard Subscriber Format
+46 (643) 557-XXXX
Telecom Carrier
Local Network Carrier
Area Code (NPA)
643
Primary Location
Hallen-Oviken
Service Type
Landline
📋 Central Office Exchange 557 Routing Details
The 557 exchange code (central office prefix) operates within the 643 Numbering Plan Area (NPA) servicing Hallen-Oviken, Sweden. All assigned subscriber lines in this block follow ITU-T E.164 national routing protocols.
Telecommunication services within the +46 (643) 557 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
0643 557-1234or local national format. -
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International Calls: Dial
+46 643 557-1234from outside Sweden. -
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E.164 Standard:
+46643557XXXX
📞 Nearby Exchanges in Area Code 643
View All Area Code 643 Exchanges ›❓ Frequently Asked Questions
What area code is +46 (643) 557?
Phone numbers starting with +46 (643) 557 belong to the 643 area code in Hallen-Oviken, Sweden, routed via exchange block 557.
How do I call a 557 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 643, and the subscriber number.
Which provider operates the 557 prefix in Hallen-Oviken?
Telecom services for the 557 exchange block in Hallen-Oviken are primarily assigned to Local Network Carrier for Landline connections.