Slovakia • NPA 904
☎️ Central Office Exchange (NXX)
+421 (904) 220 Exchange Code
Technical registry directory for telephone subscriber numbers starting with +421 (904) 220. Central office block assigned to Mobile Network, Slovakia.
Standard Subscriber Format
+421 (904) 220-XXXX
Telecom Carrier
Local Network Carrier
Area Code (NPA)
904
Primary Location
Mobile Network
Service Type
Landline
📋 Central Office Exchange 220 Routing Details
The 220 exchange code (central office prefix) operates within the 904 Numbering Plan Area (NPA) servicing Mobile Network, Slovakia. All assigned subscriber lines in this block follow ITU-T E.164 national routing protocols.
Telecommunication services within the +421 (904) 220 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
0904 220-1234or local national format. -
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International Calls: Dial
+421 904 220-1234from outside Slovakia. -
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E.164 Standard:
+421904220XXXX
📞 Nearby Exchanges in Area Code 904
View All Area Code 904 Exchanges ›❓ Frequently Asked Questions
What area code is +421 (904) 220?
Phone numbers starting with +421 (904) 220 belong to the 904 area code in Mobile Network, Slovakia, routed via exchange block 220.
How do I call a 220 exchange number from abroad?
To call this prefix internationally, dial your local exit code (e.g., 011 in North America or + globally), followed by +421, then 904, and the subscriber number.
Which provider operates the 220 prefix in Mobile Network?
Telecom services for the 220 exchange block in Mobile Network are primarily assigned to Local Network Carrier for Landline connections.