@Molentett65
With Callfilter activated, you can create your own list of blocked numbers.
To do this, select on My Swisscom (Customer Center) 'Manually block and enable numbers' in the 'Related topics' tile. You can add up to 200 numbers and update your list at any time. If you would like to block calls from a particular canton or country, please enter the dialling code in question followed by an asterisk (for example, England with international prefix +44 12*).
You can also block numbers right on your phone. Please note that these call barring can only be reversed in My Swisscom(opens in new tab).
You can block the last call you received directly on your phone by entering *00#: this number will be added to your individual blockinglist.