Slovakia Country Code: +421

+421 is the country code of Slovakia; from most countries you dial it as 00421. Every phone number in Slovakia, mobile or landline, starts with +421 in international format, for example +421 912 123 456.

Dial 011, then 421, then the number without the first 0: 02 234 567 89 becomes 011 421 2 234 567 89. On a mobile you can also dial +421 2 234 567 89.

Yes. The 0 is only dialled inside Slovakia. From abroad, 02 234 567 89 is +421 2 234 567 89.

9 digits after +421, for example +421 912 123 456. Inside Slovakia the same number is written 0912 123 456.

Save it in your contacts with + and the country code, and leave out the first 0 of the number: +421 912 123 456. WhatsApp needs the full international format.

The prefix 0912 was issued to T-Mobile (Slovak Telekom). A number keeps its prefix when its owner moves to another network, so it may be on a different network today.

Not necessarily: +421 numbers belong to people and companies in Slovakia. If you don't know the caller, don't call back: one-ring scams make you call a line that charges by the minute. Check the number first with our free phone number checker.

Dial 112, 150, 155, or 158 for emergencies in Slovakia.

With Bitcall, calls to Slovakia cost from €0.021 per minute, billed per second. You call from your browser with no app, top up your balance and pay only for what you use, with no contract.