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Billing
Understand invoices for mobile and fixed-line services and find out when payments are due
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Claims
How to submit a claim about the provided service, purchased goods or the amount stated on your invoice
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International dialing procedures
How to make international calls, incl. phone number prefixes
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International prefixes
Get international phone number prefixes instantly
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Area code map
Regional phone number prefixes in the Czech Republic (CZ only)
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Premium Rate calls
Information on pricing for premium rated calls (CZ only)
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Transfer of contacts into your new phone
Free transfer of contacts and SMS to your new phone from O2
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Payment services
A smart tool for payments such as Premium SMS, DMS, Audiotex, m-payment, Datarif
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Switch to O2
Switch to us for free and keep your old number
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Coverage map
Find signal coverage anywhere in the country
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Documents - phone services
Documents about mobile and fixed-line phone services
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Calling, SMS, MMS
More special offers
Special offers
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Maps and navigation in your mobile
With internet on your mobile and Google Maps you'll always find the way
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Rewards for topping up
Get a reward every time you top up your credit (in Czech only)
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Internet with a modem for CZK 1 in eShop only
The most popular fixed internet in the country, now faster than ever
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Cheaper phones and calling for +60s
Discounts on tariffs, prepaid SIM cards and phones for seniors
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