Greece • NPA 2421
☎️ Central Office Exchange (NXX)
+30 (2421) 523 Exchange Code
Technical registry directory for telephone subscriber numbers starting with +30 (2421) 523. Central office block assigned to Volos, Greece.
Standard Subscriber Format
+30 (2421) 523-XXXX
Telecom Carrier
Local Network Carrier
Area Code (NPA)
2421
Primary Location
Volos
Service Type
Landline
📋 Central Office Exchange 523 Routing Details
The 523 exchange code (central office prefix) operates within the 2421 Numbering Plan Area (NPA) servicing Volos, Greece. All assigned subscriber lines in this block follow ITU-T E.164 national routing protocols.
Telecommunication services within the +30 (2421) 523 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
02421 523-1234or local national format. -
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International Calls: Dial
+30 2421 523-1234from outside Greece. -
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E.164 Standard:
+302421523XXXX
📞 Nearby Exchanges in Area Code 2421
View All Area Code 2421 Exchanges ›❓ Frequently Asked Questions
What area code is +30 (2421) 523?
Phone numbers starting with +30 (2421) 523 belong to the 2421 area code in Volos, Greece, routed via exchange block 523.
How do I call a 523 exchange number from abroad?
To call this prefix internationally, dial your local exit code (e.g., 011 in North America or + globally), followed by +30, then 2421, and the subscriber number.
Which provider operates the 523 prefix in Volos?
Telecom services for the 523 exchange block in Volos are primarily assigned to Local Network Carrier for Landline connections.