Who called from 7782299612

Called at work while I was on a conference call. No message.

Same thing, called at work on my manager's phone. I don't know how they found that number.

Called at work, left voice mail to return call to this number - no other info - woman's voice

Called my work phone...which I do not give that number to anyone outside the company. Christina Archer left me a voicemail asking me to call back because she was "returning my call". I've never called anyone by that name ever.

Got a call on my cell, did not answer. Woman by the name of Christina left me a message with her number asking me to call her back.  No idea who this is