I am going to change the operator on my main line

Do you want to leave Bouygues for another operator?
Don't worry, you can keep your Onoff number.

The Bouygues option will be cancelled as soon as you change operator.
And at the next expiry date, you can renew your Onoff number manually, via your store (Apple Store, or Google Play) or our website (See the article "How to renew my number").