Slovakia Area Codes
Phone dialing reference for Slovakia (+421). Country code, number format, and calling guide.
How to dial Slovakia
To call Slovakia from abroad, dial the exit code for your country, then the country code +421, then the local phone number (without the leading 0).
Example: +421 2 1234 5678
Phone number details
How to read a Slovakia phone number
A Slovakia number is +421 followed by 9 digits. Knowing which of those digits mark a mobile is what tells you what the call will cost before you place it.
Inside Slovakia, numbers are dialled with a leading 0. Drop it when calling from abroad — keeping it is the single most common reason an international call fails.
Mobile prefixes
Landline prefixes
Prefix ranges still identify a line as mobile or fixed even where a number has been ported between operators, because the mobile and fixed blocks are separate and numbers do not move between them. Operator identification from a prefix, by contrast, stopped being reliable once portability arrived.
When to call Slovakia
What the clock reads in Slovakia when it is mid-morning, early afternoon and evening where you are. Highlighted cells fall between 9:00 and 21:00 local time at the other end.
| Calling from | Offset | 09:00 | 13:00 | 19:00 |
|---|---|---|---|---|
| New York | +6:00 | 15:00 | 19:00 | 01:00 |
| Los Angeles | +9:00 | 18:00 | 22:00 | 04:00 |
| London | +1:00 | 10:00 | 14:00 | 20:00 |
| Dubai | −3:00 | 06:00 | 10:00 | 16:00 |
| Sydney | −10:00 | 23:00 | 03:00 | 09:00 |
Offsets calculated for mid-January. Countries that observe daylight saving shift by an hour for part of the year — the planner works out today's offset from your own device.
Other European destinations, cheapest first
Rates vary by more than a factor of ten inside a single region, because each one is set by what the operator at the far end charges to accept the call. United Kingdom is currently the cheapest place we publish a rate for near Slovakia.
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All toolsFrequently asked questions
What is the country code for Slovakia?
The country code for Slovakia is +421. Dial this after the exit code (or use + on a mobile).
What does a Slovakia phone number look like?
A Slovakia number is written as +421 2 1234 5678: the country code +421 followed by 9 digits. That total is fixed by the national numbering plan, so a number with one digit missing is a typo rather than a shorter valid number.
How can I tell if a Slovakia number is a mobile?
By its leading digits. In Slovakia, a national number of 9 digits beginning with 9 is a mobile. That still works after a number has been ported between operators, because mobile and fixed-line blocks are separate ranges and numbers do not move between them.
Do I need to drop the leading 0 when calling Slovakia?
Yes. Slovakia uses 0 as a trunk prefix for domestic calls. When dialing internationally, drop the leading 0 from the local number.
