Hey, I don’t know anything, really. Certainly less than your spidysense. But, firstly, with cellphones you can no longer tell with accuracy from where a call is coming. I purchased my cellphone when I lived in Long Beach, Ca (562). Since them, I’ve lived in SF, SJ, and now Palm Springs with the same cell number. Perhaps they are friends In a new locale who are both positive and were concerned they wouldn’t find a provider that would take them. ...”You call first! No, you call first!”...
Or, you could be absolutely right!