There are several options to check the balance of your prepaid account.
How to check your prepaid balance via mobile phone
In order to check your prepaid balance with your mobile please dial the short code *101# - your balance will appear on the screen of your phone within a few seconds.
If you want to check your bonus for our O2 Loop S/M/L tariff please dial *105#.
How to check your prepaid balance over the phone
Dial 5667 and press 2 in order to check your balance.
If your balance is close to zero, you will be hear a warning tone 15 seconds before it is used up.
How to check your balance online
You can see the details of your tariff in the section Mein O2. You can also check our Prepaid Kontocheck for further details of recently made charges.
How to check your O2 cost airbag
Dial *107#.
How to check the validity of your balance
Dial *102#.
Please note that your credit is valid for 6 months. If you do not top up your credit within this period, your credit will be frozen and you will not be able to make chargeable calls or send text messages from your mobile number.
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If you have further question or any comment about this topic and process you can visit our English o2 community and write a question!
Latest Update: 02/2021
