Who called from 3072749069

I have gotten this call 3-4 times this week and a bunch last week claiming they where looking for Carla. i actually spoke to a live person. i told them no Carla here. Trick is don`t say hello wait for them to say something. I don`t know what it is for.

Received two calls on my cell during the afternoon, no message, received one this evening, again, no message.  Unfamiliar number to me.  Cheyenne, Wy on 11/5 5:43 pm, 5:42pm

called, but did not speak.  Wyoming area code. I called back but got a busy signal.

i have got call from this number couple of times and when i call it back i get busy signal. and if u try to find out who it is from information it is unknown

wont answer