Greece • NPA 2221
☎️ Central Office Exchange (NXX)
+30 (2221) 638 Exchange Code
Technical registry directory for telephone subscriber numbers starting with +30 (2221) 638. Central office block assigned to Chalcis, Greece.
Standard Subscriber Format
+30 (2221) 638-XXXX
Telecom Carrier
Local Network Carrier
Area Code (NPA)
2221
Primary Location
Chalcis
Service Type
Landline
📋 Central Office Exchange 638 Routing Details
The 638 exchange code (central office prefix) operates within the 2221 Numbering Plan Area (NPA) servicing Chalcis, Greece. All assigned subscriber lines in this block follow ITU-T E.164 national routing protocols.
Telecommunication services within the +30 (2221) 638 prefix range are primarily provisioned by Local Network Carrier, delivering local landline voice lines and network routing.
🌐 Dialing Instructions
-
•
Domestic Calls: Dial
02221 638-1234or local national format. -
•
International Calls: Dial
+30 2221 638-1234from outside Greece. -
•
E.164 Standard:
+302221638XXXX
📞 Nearby Exchanges in Area Code 2221
View All Area Code 2221 Exchanges ›❓ Frequently Asked Questions
What area code is +30 (2221) 638?
Phone numbers starting with +30 (2221) 638 belong to the 2221 area code in Chalcis, Greece, routed via exchange block 638.
How do I call a 638 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 2221, and the subscriber number.
Which provider operates the 638 prefix in Chalcis?
Telecom services for the 638 exchange block in Chalcis are primarily assigned to Local Network Carrier for Landline connections.