Every number type in Slovakia with real format examples: how numbers are written domestically, how to dial them from abroad, and the E.164 form your systems should store.
Right now in Slovakia
--:--
Country code
+421
Trunk prefix
0
Intl. call prefix
00
Mobile digits
9
Number formats by type
Examples from the official numbering plan metadata. The E.164 column is the normalized form for databases and APIs.
Type
Domestic (national)
From abroad
E.164
Digits
Landline
02 212 345 67
+421 2 212 345 67
+421221234567
6,7,9
Mobile
0912 123 456
+421 912 123 456
+421912123456
9
Toll-free
0800 123 456
+421 800 123 456
+421800123456
9
Premium rate
0900 123 456
+421 900 123 456
+421900123456
9
VoIP
0690 123 456
+421 690 123 456
+421690123456
9
Shared cost
0850 123 456
+421 850 123 456
+421850123456
9
How to call Slovakia
From abroad: dial +421 (or your country's exit code, e.g. 00 from Europe, 011 from North America), then the national number without the leading 0. Example: +421 912 123 456
Within Slovakia: dial the number as written domestically, including the trunk prefix 0. Example: 0912 123 456
Calling abroad from Slovakia: the international prefix is 00, or simply use + on mobiles.
Storing numbers in software: always store E.164 (+421912123456): unambiguous, sortable, and what SMS and telephony APIs expect.
Exact dial sequence from your country
Pick where you are calling from and get the digit-for-digit sequence for a Slovakia number, with your country's exit code instead of the generic +.
Dial exactly
Frequently Asked Questions
What is the phone number format in Slovakia?
Numbers in Slovakia use country code +421. A mobile number looks like 0912 123 456 domestically, or +421 912 123 456 in international format (E.164: +421912123456). Mobile numbers have 9 national digits.
How do I call Slovakia from abroad?
Dial your country's international prefix (or +), then 421, then the national number without the leading 0. Example: +421 912 123 456.
What is the country calling code for Slovakia?
The country calling code for Slovakia is +421. To call abroad from Slovakia, the international prefix is 00 (or use +).
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