[themodelplumber]

I have wondered what the closest thing for a "family" contact number might be. At least in the US.

One idea that came to mind was a family GMRS license. Cheap and FCC-official for the whole family, but until the spec is modified there might be a tiny distance issue. :-)

[kube-system]

The universal family contact in the US is now “[familyname555]@[cablecarrier].com/net”

[themodelplumber]

I noticed people aren't using those anymore, at least not around where I live. Seems like there's a family Gmail address more often unless they are 50+ y.o.