Finland • NPA 57
☎️ Central Office Exchange (NXX)
+358 (57) 228 Exchange Code
Technical registry directory for telephone subscriber numbers starting with +358 (57) 228. Central office block assigned to Kymi, Finland.
Standard Subscriber Format
+358 (57) 228-XXXX
Telecom Carrier
Local Network Carrier
Area Code (NPA)
57
Primary Location
Kymi
Service Type
Landline
📋 Central Office Exchange 228 Routing Details
The 228 exchange code (central office prefix) operates within the 57 Numbering Plan Area (NPA) servicing Kymi, Finland. All assigned subscriber lines in this block follow ITU-T E.164 national routing protocols.
Telecommunication services within the +358 (57) 228 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
057 228-1234or local national format. -
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International Calls: Dial
+358 57 228-1234from outside Finland. -
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E.164 Standard:
+35857228XXXX
📞 Nearby Exchanges in Area Code 57
View All Area Code 57 Exchanges ›❓ Frequently Asked Questions
What area code is +358 (57) 228?
Phone numbers starting with +358 (57) 228 belong to the 57 area code in Kymi, Finland, routed via exchange block 228.
How do I call a 228 exchange number from abroad?
To call this prefix internationally, dial your local exit code (e.g., 011 in North America or + globally), followed by +358, then 57, and the subscriber number.
Which provider operates the 228 prefix in Kymi?
Telecom services for the 228 exchange block in Kymi are primarily assigned to Local Network Carrier for Landline connections.