Country calling code
+421 Slovakia country code
Slovakia’s international calling code is +421. To call a Slovakia number from another country, dial your exit code, then 421, then the local number without the leading 0.
- Calling code
- +421
- ISO 3166 code
- SK · 703
- Exit code (calling out)
- 00
- Trunk prefix (domestic)
- 0
- Number length
- 6–9 digits
- Time zones
- Bratislava
- Local time
- —
Number formats and examples are generated from libphonenumber-js numbering-plan metadata. They describe numbering rules, not a verified active subscriber or a phone’s current location. For an individual number, try the free format lookup.
How to call Slovakia
| Calling from | Dial |
|---|---|
| A mobile phone, anywhere | +421 912 123 456 |
| United States & Canada | 011 421 912 123 456 |
| UK, Europe & most countries | 00 421 912 123 456 |
| Australia | 0011 421 912 123 456 |
| Inside Slovakia | 0912 123 456 |
Inside Slovakia, numbers are written with the trunk prefix 0 (for example 0912 123 456). Drop that 0 when you dial from abroad.
Slovakia phone number format
A sample mobile number in Slovakia is written +421 912 123 456 internationally, 0912 123 456 locally, and +421912123456 in the E.164 format that apps and websites store. Numbers are 6–9 digits long after the country code.
Not sure where a number is from? Paste it into our free phone number lookup to see the country, line type and correct format.
Calling abroad from Slovakia
To call another country from a Slovakia landline, start with the exit code 00, then the destination country code. On a mobile phone, holding 0 to type + works everywhere and replaces the exit code.
Missed call from +421?
If you don’t know anyone in Slovakia, be careful with short missed calls from international numbers. “One-ring” scams hope you call back a premium-rate line. Don’t return the call, don’t share codes sent by SMS, and block the number if it keeps calling. A genuine contact will usually leave a message or text.
Frequently asked questions
Which country uses the +421 code?
+421 is the international calling code of Slovakia (SK). No other country uses it.
How do I call Slovakia from the United States?
Dial 011 (the US exit code), then 421, then the local number without the leading 0. From a mobile phone you can simply type +421 912 123 456.
How many digits are in a Slovakia phone number?
National numbers in Slovakia are 6–9 digits long after the +421 country code. A typical mobile number looks like +421 912 123 456.
Can I find the location of a +421 number?
Not from the number alone. Enter the number in AI Family Locator and send a location request. Live GPS location appears only after the owner installs the app and approves sharing. A number lookup shows only numbering details, not a current location.