Who called from 2157805310

I also have received two calls today from this number. There is just silence and a computer voice says good bye.

this unknown outfit (selling meds, incorrigible, no ethics - terrible telemarketers) has been calling my "new" mobile number for 3+ years, using multiple numbers, some without caller ID; but they are all the same: asking for the same person (not me), can't have a reasonable conversation with them, never remove my number from their list after repeated requests, never stop.....