Slovakia • NPA 51
☎️ Central Office Exchange (NXX)
+421 (51) 581 Exchange Code
Technical registry directory for telephone subscriber numbers starting with +421 (51) 581. Central office block assigned to Presov, Slovakia.
Standard Subscriber Format
+421 (51) 581-XXXX
Telecom Carrier
Local Network Carrier
Area Code (NPA)
51
Primary Location
Presov
Service Type
Landline
📋 Central Office Exchange 581 Routing Details
The 581 exchange code (central office prefix) operates within the 51 Numbering Plan Area (NPA) servicing Presov, Slovakia. All assigned subscriber lines in this block follow ITU-T E.164 national routing protocols.
Telecommunication services within the +421 (51) 581 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
051 581-1234or local national format. -
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International Calls: Dial
+421 51 581-1234from outside Slovakia. -
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E.164 Standard:
+42151581XXXX
📞 Nearby Exchanges in Area Code 51
View All Area Code 51 Exchanges ›❓ Frequently Asked Questions
What area code is +421 (51) 581?
Phone numbers starting with +421 (51) 581 belong to the 51 area code in Presov, Slovakia, routed via exchange block 581.
How do I call a 581 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 51, and the subscriber number.
Which provider operates the 581 prefix in Presov?
Telecom services for the 581 exchange block in Presov are primarily assigned to Local Network Carrier for Landline connections.