Get a Slovak phone number for your business.

Q: What types of Slovak phone numbers can I register?

We offer two types: 800 toll-free numbers which are free for callers, and local geographic numbers with city-specific area codes such as 02 for Bratislava, 055 for Košice, 051 for Prešov, 041 for Žilina, and 037 for Nitra.

Q: Do I need a local address in Slovakia?

800 toll-free numbers are available with a worldwide address. Local geographic numbers require an address in the area-code zone of the number.

Q: How does the 800 toll-free number work in Slovakia?

An 800 number allows customers to call you for free from any Slovak landline or mobile network. You, as the number owner, cover the call costs. This is widely used for customer service and support lines in Slovakia. Note that 800 toll-free numbers can only be dialled from within Slovakia — they cannot be called from abroad.

Q: What is the format for Slovak phone numbers?

Slovak numbers use the country code +421 . Domestically, all numbers are dialled with a trunk prefix 0 followed by a 9-digit number. Bratislava uses the short area code 02 with an 8-digit subscriber number. Other cities use two-digit area codes like 055 (Košice) or 041 (Žilina) with a 7-digit subscriber number. When advertising internationally, use +421 2 XXXX XXXX for Bratislava (dropping the leading 0). Toll-free numbers are 0800 XXX XXXX domestically or +421 800 XXX XXXX internationally.

Q: Who regulates Slovak telephone numbers?

The Regulatory Authority for Electronic Communications and Postal Services (RÚ) is the national authority responsible for telecoms regulation in Slovakia, including the assignment and oversight of telephone numbers.

Slovak customers call a Slovak number, and that makes a difference to both response and trust. Which number you can have depends on one thing: whether you have an address in Slovakia. Below is what is possible either way.

See available numbers What can I order?

The question that decides everything

Which Slovak number can your business have?

In Slovakia the regulator decides which Slovak number you can have. Some numbers need your business to have an address in Slovakia; below you can see what is possible for each number.

Do you have an address in Slovakia?

+421 800
0800 — free for the caller
Can be registered to an address outside Slovakia.
Possible Possible
+421 2
Local — Bratislava, Košice, Žilina
Requires an address within the number's area code.
Possible in the city of your address Local premises needed

Request and what it costs

We'll find your Slovak number for you

We show no stock for Slovakia on the site. Tell us which number you're after, and we'll find an available one and send you a proposal within one working day.

Request a number

What a number abroad costs

€49 per monthper number

The same amount in every country — a Slovak number costs no more than an Irish one. Including the full phone system: forwarding, IVR menu, call queue, call recording and statistics.

Just testing the market

€250 per yearprepaid

One line, one forwarding number, no features. For anyone who first wants to know whether the phone rings at all before setting up a phone system. That is less than €21 a month — under half the full rate, with exactly one thing that works: the number rings and the call reaches you.

And the call charges

Those depend on where the call goes

A call that arrives in Slovakia and goes on to an Irish VoIP line costs a different amount from one to a Slovak mobile. You get that rate with your proposal; it is the one thing we cannot put on the page, because it differs per route.

What comes with it

What comes with your Slovak number

Call forwarding to mobile, landline or your team

By time of day, availability and ring order: one after the other, in turns or all at once. You set it up yourself in the dashboard.

Welcome message

Recorded by you or generated with text-to-speech, in any language.

Voicemail in your inbox

Every message as audio and as text in your email.

Whisper tone

Hear which number was called before you answer.

Text-to-speech

Unlimited announcements read out for you, no recording studio needed.

Statistics and call analysis

Who called, when, for how long and who answered. By email or in the dashboard.

Block numbers

Keep spam and unwanted callers off your business number.

WhatsApp Business on your number

The same business number for calls and for WhatsApp.

Opening hours and duty rota

Public-holiday calendar, on-call duty and forwarding by calendar.

Call notes and customer history

Notes and flags travel with the caller.

Team dashboard with live availability

Who is reachable and who answers, on one screen.

Phone menu (IVR)

Callers pick the right department themselves.

Queue with hold music or a message

Callers keep their place instead of getting a busy tone.

Call recording with AI transcription

For quality and for checking what was agreed.

Number porting

Bringing your existing number is free and takes five working days at most.

How it works

From request to a ringing phone

You tell us what you need
Which city or which type, and whether you have a Slovak address. If you're not sure, we'll look at it with you.
We check and send a quote
Within one working day you get a proposal with the current rates and an honest answer on whether it can be done. Sometimes the answer is that an 0800 number will serve you better than a local number.
The registration
For local numbers we submit the proof of address to the regulator. That is the only part you have to wait for.
Forwarding to your team
The call arrives in Slovakia and lands with your colleagues in Ireland. The caller dials a Slovak number and never notices the difference.

We offer two types: 800 toll-free numbers which are free for callers, and local geographic numbers with city-specific area codes such as 02 for Bratislava, 055 for Košice, 051 for Prešov, 041 for Žilina, and 037 for Nitra.

800 toll-free numbers are available with a worldwide address. Local geographic numbers require an address in the area-code zone of the number.

An 800 number allows customers to call you for free from any Slovak landline or mobile network. You, as the number owner, cover the call costs. This is widely used for customer service and support lines in Slovakia. Note that 800 toll-free numbers can only be dialled from within Slovakia — they cannot be called from abroad.

Slovak numbers use the country code +421. Domestically, all numbers are dialled with a trunk prefix 0 followed by a 9-digit number. Bratislava uses the short area code 02 with an 8-digit subscriber number. Other cities use two-digit area codes like 055 (Košice) or 041 (Žilina) with a 7-digit subscriber number. When advertising internationally, use +421 2 XXXX XXXX for Bratislava (dropping the leading 0). Toll-free numbers are 0800 XXX XXXX domestically or +421 800 XXX XXXX internationally.

Slovakia has area codes organised by region: 02 for Bratislava, 3x prefixes for Western Slovakia (e.g., 037 Nitra, 033 Trnava), 4x for Central Slovakia (e.g., 041 Žilina, 048 Banská Bystrica), and 5x for Eastern Slovakia (e.g., 051 Prešov, 055 Košice). We can help you obtain any area code in the country.

Virtual numbers can typically be set up within 1 business day. Once active, calls are forwarded immediately to your existing Irish landline, mobile, or VoIP system.

Yes. Our Slovak virtual numbers come with a complete professional phone system. You can set up Slovak-language text-to-speech welcome messages, call menus, call recording for quality assurance, and time-based routing, all managed from our online dashboard.

The Regulatory Authority for Electronic Communications and Postal Services (RÚ) is the national authority responsible for telecoms regulation in Slovakia, including the assignment and oversight of telephone numbers.