Ay Yildiz is your affordable mobile service provider for Germany and Turkey. We offer simple plans that are cost-effective, flexible, and without any contractual obligations.

Top up your balance, choose the option that suits you, and book it. You can now purchase and use credit.

There are many ways to recharge your Ay Yildiz prepaid card. Use vouchers or credit cards from O2 or Blau, which are available in many supermarkets.

How does it work? It's very simple:

1. Recharge by call: Dial 1155 and press 1 for recharging. Enter the 16-digit recharge number and confirm with the hash key. Confirm your entry with 1 and wait briefly for the recharge to be successfully registered.

2. Recharge by key combination: Enter the following key combination: "104" + 16-digit recharge number + hash key. Then press the call button. Shortly after, you will see the recharge amount on the display.