So I started a new experiment this week: I answer the calls but say nothing. Ideally, I would mute my end, but that is buried in some menu and I am too lazy to find it, so I just listen. No response from me, just silence. Our house is quiet enough that it really is silent. My theory is that the calling system will hear the silence and conclude that ours is a dead number (e.g., that they have discovered another outbound-calls-only spammer). I hope this encourages them to start removing our number from the spammer lists. We shall see.
If there is an actual caller that comes on the line, I will ask some key questions - who are they calling, who are they, and so on. This usually reveals some business just rolling through the (proverbial) phone book looking for business - calls from realtors who want to flip the house, from builders who want to do some remodeling, or some other damn thing. I have just been asking for them to remove us from their call lists, but I am now going to try to collect enough informationt that I will be able to identify them. I have not decided what I will do with this information (report them to the WA Attorney General, name-and-shame them on social media, perhaps something else). We shall see.
Photo: Gargoyle, Hospices de Beaune, France, 2025.