Slovakia · +421

WhatsApp number checker for Slovakia

Upload a list of phone numbers from Slovakia and get it back in two files: the numbers that have a WhatsApp account and the ones that do not. You only pay for unique numbers

Calling code +421Mobile numbers have 9 digits after it
8 mobile networksAll checked the same way
€35 per 1,000,000 numbersFrom 2,000 numbers, two result files

How mobile numbers are written in Slovakia

The check takes each number with its country code and nothing else. Here is the same mobile number from Slovakia in the three ways you will meet it

International+421 912 123 456How it is shared across borders
At home in Slovakia0912 123 456With the leading 0, it cannot be checked like this
In your file421912123456Country code first, digits only: this is what the check takes
  • Drop the leading 0 and put 421 in front: 0912 123 456 becomes 421912123456
  • A mobile number in Slovakia has 9 digits after +421. Numbers that are too short, too long or in a range that is not in use are left out and not charged
  • One number per line in a .txt or .csv file. Duplicates and numbers from other countries are removed before you see the price

Mobile networks in Slovakia

These are the mobile networks that give out numbers in Slovakia. The WhatsApp check does not depend on the network: numbers from every one of them are checked the same way

Network
T-Mobile (Slovak Telekom)
Orange
Telefonica O2
4ka of SWAN
Alternet, s.r.o.
BSG Estonia
IPfon, s.r.o.
Slovak Republic Railways (GSM-R)
Look up one number's network for freeType a number and see its network, country and flag
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What a list from Slovakia costs

€35 per 1,000,000 numbers · minimum file 2,000 numbers
Min. 2,000 numbers€0.07
10,000 numbers€0.35
100,000 numbers€3.50
1,000,000 numbers€35.00

The same price for every country. You pay only for the unique numbers from Slovakia in your file, from a prepaid EUR balance, with no subscription

Check a list from Slovakia in three steps

  1. Upload your listCreate a free account, choose the WhatsApp Standard Check and upload your numbers, one per line with 421 in front
  2. See the count and the priceWe detect Slovakia from the numbers, remove duplicates and other countries, then show the exact amount
  3. Download two filesThe numbers with a WhatsApp account and the ones without, in your account and in Telegram if you connect our bot

Questions about checking numbers from Slovakia

How do I check if a phone number from Slovakia is on WhatsApp?

For one number, save it in your phone's contacts and start a new chat in WhatsApp: if it shows up, it has an account. For a list, upload a .txt or .csv file here with one number per line. The WhatsApp Standard Check checks every unique number and gives you two files: the numbers with a WhatsApp account and the ones without

How do I write numbers from Slovakia in my file?

With the country code 421 and nothing else, one number per line, for example 421912123456. Drop the leading 0 and put 421 in front: 0912 123 456 becomes 421912123456. A leading + or 00, spaces, dashes and brackets are removed for you

How long is a mobile number in Slovakia?

9 digits after the country code +421. Numbers that are shorter, longer or in a range that is not in use in Slovakia are left out of your order and not charged

Does the check work for every mobile network in Slovakia?

Yes. The check looks for a WhatsApp account, not at the network, so numbers from T-Mobile (Slovak Telekom), Orange, Telefonica O2 and the other 5 networks are all checked the same way

Can I upload numbers from Slovakia together with numbers from other countries?

One order checks one country. If your file mixes countries, the order takes the numbers from Slovakia and leaves the others out without charging them. Upload the rest as a separate order for their own country

How much does it cost to check 100,000 numbers from Slovakia?

€3.50 with the WhatsApp Standard Check (€35 per 1,000,000 numbers). You only pay for the unique numbers from Slovakia, and your account shows the exact amount before you place the order

More about results and payment on the WhatsApp checker page and in the main FAQ

Check your list from Slovakia

Create a free account, upload your list and see the exact amount before you pay

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