Rent a 4ka number in Slovakia

A number reserved for your account alone for 7, 14 or 30 days. It receives every SMS sent to it, from any app, for the whole term — useful for accounts you want to keep, logins that ask for a code again, or services that verify twice.

Yes. Unlike a one-time activation, a rental is not tied to one service. Every incoming SMS appears in your account's inbox for that number, with its sender and its time.

The number goes back to the network's pool and can be given to someone else later. Renew before the end date to keep it — renewal is always your decision, nothing renews on its own.

No. Rented numbers receive SMS only: no outgoing messages and no voice calls. Keep that in mind before using one for a service that expects to call you.

The numbers are mobile numbers on carrier networks in each country, which is why they pass the "non-VoIP" checks that many apps run. Some routes are resold lines rather than a SIM in a single handset — each network shows its measured delivery rate so you can see how well it works before paying.

No. There is no ID upload, no selfie and no phone number of your own to give. An email address and a password are the whole sign-up — use an address you can open, since it is how you reset a forgotten password.