Austria • NPA 3855
☎️ Central Office Exchange (NXX)
+43 (3855) 810 Exchange Code
Technical registry directory for telephone subscriber numbers starting with +43 (3855) 810. Central office block assigned to Krieglach, Austria.
Standard Subscriber Format
+43 (3855) 810-XXXX
Telecom Carrier
Local Network Carrier
Area Code (NPA)
3855
Primary Location
Krieglach
Service Type
Landline
📋 Central Office Exchange 810 Routing Details
The 810 exchange code (central office prefix) operates within the 3855 Numbering Plan Area (NPA) servicing Krieglach, Austria. All assigned subscriber lines in this block follow ITU-T E.164 national routing protocols.
Telecommunication services within the +43 (3855) 810 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
03855 810-1234or local national format. -
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International Calls: Dial
+43 3855 810-1234from outside Austria. -
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E.164 Standard:
+433855810XXXX
📞 Nearby Exchanges in Area Code 3855
View All Area Code 3855 Exchanges ›❓ Frequently Asked Questions
What area code is +43 (3855) 810?
Phone numbers starting with +43 (3855) 810 belong to the 3855 area code in Krieglach, Austria, routed via exchange block 810.
How do I call a 810 exchange number from abroad?
To call this prefix internationally, dial your local exit code (e.g., 011 in North America or + globally), followed by +43, then 3855, and the subscriber number.
Which provider operates the 810 prefix in Krieglach?
Telecom services for the 810 exchange block in Krieglach are primarily assigned to Local Network Carrier for Landline connections.