---
title: "Slovakia country code +421"
url: "https://lookvalid.com/country-code/slovakia.md"
canonical_url: "https://lookvalid.com/country-code/slovakia"
last_updated: "2026-10-19"
type: "reference"
summary: "Slovakia uses country code +421. A number looks like +421 912 123 456. How to dial it from the US and other countries, number lengths and a live validator."
related: ["https://lookvalid.com/country-code.md"]
---

# Slovakia country code +421

Slovakia uses country code +421. A number looks like +421 912 123 456. How to dial it from the US and other countries, number lengths and a live validator.

Slovakia uses country code +421. A number looks like +421 912 123 456.

## How to dial

| From | Dial |

| --- | --- |

| Any mobile phone | +421 912 123 456 |

| United States | 011 421 912 123 456 |

| Canada | 011 421 912 123 456 |

| United Kingdom | 00 421 912 123 456 |

| Australia | 0011 421 912 123 456 |

| Germany | 00 421 912 123 456 |

| France | 00 421 912 123 456 |

| India | 00 421 912 123 456 |

| Japan | 010 421 912 123 456 |

| Mexico | 00 421 912 123 456 |

| South Africa | 00 421 912 123 456 |

## Number structure

| Line | Digits |

| --- | --- |

| Mobile | 9 digits |

| Landline | 6, 7 or 9 digits |

| Toll free | 9 digits |

| Premium rate | 9 digits |

Inside Slovakia the national number is dialled with a leading 0, which is dropped after +421.

## Area codes and places

Names are where the range was first assigned; numbers move between places and carriers. Source: libphonenumber geocoding data, 2026-09-23.

| Starts with | Place |
| --- | --- |
| +421 2 | Bratislava |
| +421 31 | Dunajska Streda |
| +421 32 | Trencin |
| +421 33 | Trnava |
| +421 34 | Senica |
| +421 35 | Nove Zamky |
| +421 36 | Levice |
| +421 37 | Nitra |
| +421 38 | Topolcany |
| +421 41 | Zilina |
| +421 42 | Povazska Bystrica |
| +421 43 | Martin |
| +421 44 | Liptovsky Mikulas |
| +421 45 | Zvolen |
| +421 46 | Prievidza |
| +421 47 | Lucenec |
| +421 48 | Banska Bystrica |
| +421 51 | Presov |
| +421 52 | Poprad |
| +421 53 | Spisska Nova Ves |
| +421 54 | Bardejov |
| +421 55 | Kosice |
| +421 56 | Michalovce |
| +421 57 | Humenne |
| +421 58 | Roznava |

Showing 25 of 26 rows. The page lists 26.

## First issuers

The first issuer of the range; numbers port between carriers, so the current carrier can differ. Source: libphonenumber carrier data, 2026-10-07.

| Starts with | First issued to |
| --- | --- |
| +421 901 | T-Mobile (Slovak Telekom) |
| +421 902 | T-Mobile (Slovak Telekom) |
| +421 903 | T-Mobile (Slovak Telekom) |
| +421 904 | T-Mobile (Slovak Telekom) |
| +421 905 | Orange |
| +421 906 | Orange |
| +421 907 | Orange |
| +421 908 | Orange |
| +421 9091 | T-Mobile (Slovak Telekom) |
| +421 9092 | T-Mobile (Slovak Telekom) |
| +421 9093 | T-Mobile (Slovak Telekom) |
| +421 9094 | T-Mobile (Slovak Telekom) |
| +421 9095 | T-Mobile (Slovak Telekom) |
| +421 9096 | T-Mobile (Slovak Telekom) |
| +421 9097 | T-Mobile (Slovak Telekom) |
| +421 9098 | T-Mobile (Slovak Telekom) |
| +421 9099 | T-Mobile (Slovak Telekom) |
| +421 910 | T-Mobile (Slovak Telekom) |
| +421 911 | T-Mobile (Slovak Telekom) |
| +421 912 | T-Mobile (Slovak Telekom) |
| +421 914 | T-Mobile (Slovak Telekom) |
| +421 915 | Orange |
| +421 916 | Orange |
| +421 917 | Orange |
| +421 918 | Orange |

Showing 25 of 39 rows. The page lists 39.

## Questions

**What is the country code for Slovakia?**

The country code for Slovakia is +421. Written in full, a number looks like +421 912 123 456.

**How do I call Slovakia from the United States?**

Dial 011, then 421 912 123 456. On a mobile phone you can dial +421 912 123 456 instead.

**Do I dial the 0 at the start of a Slovakia number from abroad?**

No. The 0 is the trunk prefix used for calls inside Slovakia (0912 123 456). From abroad it is dropped after +421 (+421 912 123 456).

**How many digits is a Slovakia phone number?**

Mobile numbers have 9 digits after the country code. Landline numbers have 6, 7 or 9 digits.

**How do I call another country from Slovakia?**

Dial 00, then the country code and the number. On a mobile phone, + replaces 00.

Source: libphonenumber-js 1.13.15, released 2026-10-08, read 2026-10-19; tables from libphonenumber resource files, read 2026-10-19. All country codes are on the [country code index](https://lookvalid.com/country-code.md).

## Related

- [Country calling codes and how to dial them](https://lookvalid.com/country-code.md)