Slovakia numbers
Slovakia's international dial code is +421. This page gathers what we've published about this country's numbers — no names, no uploaders, no reporters. Just numbering-plan facts and aggregate counts.
Dialing information
- International calling code
- +421
- Dialing from abroad
- +421 912 123 456
- Dialing locally
- 0912 123 456
- Domestic trunk prefix
- 0
- International call prefix
- 00
- National number length
- 6–9 digits
- Mobile number length
- 9 digits
- Fixed-line number length
- 6–9 digits
Number formats by line type
- Mobile
- +421 9XX XXX XXX
- Landline
- +421 2 XXX XXX XX
- VoIP
- +421 6XX XXX XXX
- Toll free
- +421 8XX XXX XXX
- Premium rate
- +421 9XX XXX XXX
Top prefixes
Landline · Bratislava
VoIP · Roznava
Landline · Dunajska Streda
Landline · Trencin
Landline · Trnava
Landline · Senica
Landline · Nove Zamky
Landline · Levice
Landline · Nitra
Landline · Topolcany
Landline · Zilina
Landline · Povazska Bystrica
Landline · Martin
Landline · Liptovsky Mikulas
Landline · Zvolen
Landline · Prievidza
Landline · Lucenec
Landline · Banska Bystrica
Landline · Presov
Landline · Poprad
Landline · Spisska Nova Ves
Landline · Bardejov
Landline · Kosice
Landline · Michalovce
Landline · Humenne
Landline · Roznava
Mobile · Original allocation: T-Mobile (Slovak Telekom)
Mobile · Original allocation: T-Mobile (Slovak Telekom)
Mobile · Original allocation: T-Mobile (Slovak Telekom)
Mobile · Original allocation: T-Mobile (Slovak Telekom)
Mobile · Original allocation: Orange
Mobile · Original allocation: Orange
Mobile · Original allocation: Orange
Mobile · Original allocation: Orange
Mobile · Original allocation: T-Mobile (Slovak Telekom)
Mobile · Original allocation: T-Mobile (Slovak Telekom)
Mobile · Original allocation: T-Mobile (Slovak Telekom)
Mobile · Original allocation: T-Mobile (Slovak Telekom)
Mobile · Original allocation: T-Mobile (Slovak Telekom)
Mobile · Original allocation: Orange
Mobile · Original allocation: Orange
Mobile · Original allocation: Orange
Mobile · Original allocation: Orange
Mobile · Original allocation: Orange
Mobile · Original allocation: Telefonica O2
Mobile
Mobile · Original allocation: Telefonica O2
Mobile · Original allocation: Orange
Mobile · Original allocation: Telefonica O2
Mobile · Original allocation: Telefonica O2
Mobile · Original allocation: Telefonica O2
Mobile · Original allocation: 4ka of SWAN
Mobile · Original allocation: 4ka of SWAN
Mobile · Original allocation: 4ka of SWAN
Mobile · Original allocation: Slovak Republic Railways (GSM-R)
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Frequently asked questions
Who allocates Slovakia's numbers?
The +421 dial code and each prefix's carrier come from this country's officially published numbering plan — not from user-uploaded data.
How many indexed numbers do we have in Slovakia?
2 indexed numbers, and 0 spam numbers — names themselves are never published, only the counts.
How do I call Slovakia from abroad?
Slovakia's international dial code is +421. From outside the country, dial the number in its international format, like +421 912 123 456.
How many digits does a phone number in Slovakia have?
National number length in Slovakia: 6–9 digits — after the domestic trunk prefix, if any.