Who called from 2560000000

Received a call from this number and female stated wrong number and hung up

Called husbands phone, then hung up, female voice. Possibility trying to download? Possibility trying to insert virus? Bug?worm? On phone. Happened to too many, all the same way. Suggest all of you report it to your phone carrier.

Same thing today.  Young girl,  wrong number,  click.  Huh????

The young lady said, "Oooppps, I've got the wrong number."  She called my cell phone.

I did not answer and they did not leave a message