Phone & internetCS
Phone & internet · Czechia
Checked 2026-10-14

🔄 How do I switch my phone or internet provider in Czechia?

The short answer

To change internet provider, ask the new provider: it leads the switch and notifies the old one within 1 working day. The old provider must keep serving you on the same terms until the new service works; interruption may not exceed 1 working day.

Switching is mostly paperwork: the network stays where it is, only the company that provides your service changes. Who arranges the switch and how long the service may be down depends on the rules in Czechia.

Official source: e-sbirka.gov.cz · Checked 2026-10-14

📜 The rules in Czechia

The details

  • You need the verification code for changing internet provider, which you will find in your contract. Hand it to the new provider and agree the date of the switch with it. (ctu.gov.cz)
  • Your contract with the old provider ends on the day the switch is completed, unless you ask for another date. Contract terms that discourage switching have no legal effect. (e-sbirka.gov.cz)
  • A consumer can be charged for ending a fixed-term contract early only if it ends within 3 months of signing, and at most one twentieth of the remaining monthly fees. A subsidised device you keep must be paid off. (ctu.gov.cz)
  • If the switch is delayed or misused because a provider broke its duties, you get flat-rate compensation: 200 Kč per started day of delay (400 Kč from day 6) and 600 Kč per day of misuse. (e-sbirka.gov.cz)
  • ČTÚ's official price and quality comparison tool ranks services from the cheapest for the usage you enter. (ctu.gov.cz)

Český telekomunikační úřad (ČTÚ)

Telecom regulator: consumer information, objections to how a provider handled your complaint, and other disputes with providers.

📞 224 004 111🔗 ctu.gov.cz
Official source: ctu.gov.cz · Checked 2026-10-14

Compare offers official

Srovnávací nástroj cen a kvality (ČTÚ)

🔗 srovnavac.ctu.gov.cz
Official source: ctu.gov.cz · Checked 2026-10-14

🪜 Step by step

  1. Check your current contractFind the end of the minimum term, the notice period and any exit fee. They are in your contract summary or online account.
  2. Compare offersLook at the total cost over the whole term: set-up fees, equipment, and the price after any discount period ends.
  3. Sign with the new providerSay whether you want to keep your number. Ask the new provider whether it arranges the switch and the end of your old contract.
  4. Return equipment and check the final billSend back rented equipment if you are asked to, keep proof of it, and check that the old provider stops charging you.

📇 Who to contact

Český telekomunikační úřad (ČTÚ)Telecom regulator: consumer information, objections to how a provider handled your complaint, and other disputes with providers.📞 224 004 111🔗 ctu.gov.cz/pro-spotrebitele
Srovnávací nástroj cen a kvality (ČTÚ) officialCompare phone and internet offersBefore you switch, or when your price goes up🔗 srovnavac.ctu.gov.cz
dTestIndependent advice for consumersFor advice, template letters and a second opinion🔗 www.dtest.cz

Sponsor this page → One labelled block, €100 a month. Founding price €75 until 31 January 2027.

❓ Questions

Will I be without phone or internet when I switch?

There can be a short break on the switching day. Ask both providers for the planned date, and see the rules for Czechia on this page.

Can I switch before my contract ends?

Yes, but while the minimum term is still running you may have to pay an exit fee or the remaining monthly charges. Check your contract summary first.

Do I have to cancel the old contract myself?

That depends on the service and the rules in Czechia. Ask the new provider and keep written confirmation of the end date.

📎 Sources

Checked: 2026-10-14

🧭 Is this still correct?

We check this information carefully, but phone numbers, websites and rules change — and sometimes we get something wrong. Spotted a mistake or a change? Let us know below.

🔗 Also useful

✉️Write my letter: Leave a phone or internet contract · Complaints→📶Phone or internet contract · Who do I contact?→☎️Unwanted sales calls · Who do I contact?→📲Keep your number→📅Minimum term & notice→📝Contract summary & cooling-off→📈Price rise→🐢Slow internet→

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