What does a Slovakia phone number look like?
- International format
+421 912123456- IDD format (caller ID)
00421 912123456- Mobile example
-
0912123456(local) →+421 912123456 - Landline example
-
0221234567(local) →+421 221234567
Received a call or message from +421?
A call or text from +421 (or 00421) originates from Slovakia.
If you don't know anyone in Slovakia, be cautious. Common patterns with unfamiliar international numbers:
- One-ring scams (Wangiri): The caller rings once and hangs up, hoping you'll call back a premium-rate number. Don't return calls to numbers you don't recognize.
- SMS phishing: Messages claiming to be from banks, delivery services, or government agencies. Legitimate organizations won't contact you from a +421 number unless you have an account in Slovakia.
- Spoofed numbers: The caller ID can be faked. A call showing +421 may not actually originate from Slovakia.
If you do know someone in Slovakia and want to call them back, see the dialing instructions below.
How to call Slovakia from abroad
- International format (recommended)
-
+421 [local number]Example:
+421 912 123 456 - From a mobile phone
-
Press and hold 0 or tap + to get the plus sign, then dial
+421followed by the local number. - From a landline
-
Dial your country's international access code, then
421, then the local number.
| From | Dial |
|---|---|
| US/Canada | 011 421 [local number] |
| United Kingdom | 00 421 [local number] |
| Australia | 0011 421 [local number] |
| Your browser (DialHard) | +421 [local number] |
Do I need to drop the leading zero?
Yes. When calling Slovakia from abroad, drop the leading 0 from the local number.
For example, if the local number is 0XX XXX XXXX, dial +421 XX XXX XXXX.
What time zone is Slovakia?
Europe/Prague
Good time to call
06:07 PM local time · Weekend daytime
Good for personal calls.
How much does it cost to call Slovakia?
International calls to Slovakia vary dramatically by provider. Major US carriers charge $3.00/min or more, while VoIP services like DialHard start at $0.09/min.
| Provider | Rate/min | vs DialHard |
|---|---|---|
| AT&T | $3.00 | 97% more |
| Verizon | $2.99 | 97% more |
| T-Mobile | $3.00 | 97% more |
| DialHard | $0.09 | Save ~97% |
Carrier rates are based on published international calling rates without plan add-ons. Your actual rate may vary.
Current rates to Slovakia
$0.09–$0.22/min
Rates vary by mobile vs landline. Billed per minute, rounded up.
Frequently asked questions
Where is the code +421 from?
+421 is the international dialing code for Slovakia.
Is +421 a mobile or landline code?
+421 is the country code for all of Slovakia — both mobile and landline numbers use this code. The digits after the country code may indicate the number type, but this varies by country.
Is a call from +421 a scam?
Not necessarily. +421 is the legitimate country code for Slovakia. However, scammers can spoof any country code. If you don't recognize the number or weren't expecting a call from Slovakia, don't call back — especially if they only rang once.
Why won't my call to Slovakia connect?
Common issues:
- Wrong format: Make sure you're using +421 (not 00421 or just 421)
- Extra digits: Remove any trunk prefix (usually 0) from the start of the local number
- Missing digits: Ensure you have the complete local number after the country code
What does a Slovakia phone number look like?
A Slovakia number in international format starts with
+421 followed by the local number.
Example: +421 912123456
How do I save a Slovakia number in my contacts?
Always save international numbers in E.164 format: +421 followed by the local number (without the leading 0 if applicable). This format works worldwide.
How do I block calls from +421?
On most smartphones, you can block individual numbers by opening your recent calls, tapping the number, and selecting "Block." To block all calls from a country code, check your carrier's international call blocking options or use a call-filtering app.