I would like to change my mobile number on the Swisscom Community website
Do you want to change something in the customer center or in the community?
Is the contract displayed in the customer center a mobile phone contract?Do you want to change this number or just the contact telephone number?
In both cases, I suggest that you report this directly to Swisscom. Then you can be sure that the number is stored correctly.
But if you mean the Swisscom Community, you cannot store a telephone number at all. For the login you have to make settings in the customer center.
have two mobiles, I would like to put the other number in order to open my bills with the code.
More details here: https://www.swisscom.ch/en/residential/help/data-and-bills/the-swisscom-login.html#Change_user_name_...
I am not sure to understand what you want to do here, but I noticed that you have several Swisscom login.
One though gathers your 2 mobiles subscriptions and your inOne home.
If you cannot remember it, please call our assistance. We will help you out after an identity check.
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