Slovakia Dialing Code — +421
The country calling code listed for Slovakia is +421. This page contains 20 city or region entries from the site's reference data. The entries are selected examples, not a complete national numbering plan, a live phone-number check, or confirmation that a number is active.
How to format an international call to Slovakia
In international number notation, begin with +421 followed by the destination number in its international format. The access prefix used when dialing without + depends on the originating network. National trunk-prefix rules vary, so do not remove a leading zero unless the destination's current dialing instructions say to. See how to call internationally or the international dialing code guide.
Listed city and area-code entries for Slovakia
- Bratislava — +421 2
- Košice — +421 55
- Prešov — +421 51
- Žilina — +421 41
- Nitra — +421 37
- Banská Bystrica — +421 48
- Trnava — +421 33
- Martin — +421 43
- Trenčín — +421 32
- Poprad — +421 52
- Prievidza — +421 46
- Zvolen — +421 45
- Považská Bystrica — +421 42
- Michalovce — +421 56
- Spišská Nová Ves — +421 53
- Komárno — +421 35
- Levice — +421 36
- Liptovský Mikuláš — +421 44
- Humenne — +421 57
- Bardejov — +421 54
What the listed city entries mean
These city and area-code records are the entries currently included in this local reference. They may not cover every city, number range, mobile service, or dialing rule in Slovakia. A country calling code helps route a call; it does not identify a caller's location or validate a complete number.
Related Slovakia references
- Browse all country dialing codes
- Slovakia postal codes
- How to call internationally
- International dialing code guide
- Identify a phone number's country and area code
- International Telecommunication Union numbering resources
Frequently Asked Questions
What is Slovakia's international dialing code?
Slovakia's country calling code in this reference is +421. The originating network determines the access prefix used to place an international call.
How do I call Slovakia from the United States?
From a US or Canadian phone line, 011 is a commonly used international access prefix; then use 421 and the destination number in its international format. Check the destination carrier's instructions before changing a leading zero or other national prefix.
Does this page show all city codes for Slovakia?
No. It shows 20 selected entries from the site's reference data. Verify complete, current dialing details with the destination telecom provider or numbering authority.
About Slovakia International Dialing
Country calling codes are part of the International Telecommunication Union's ITU-T E.164 numbering plan. See the ITU-T E.164 recommendation and this site's data methodology.