Also have received calls in past 30 days from 2012974636, 2012974628, 2012974634. Who/What ever is calling using a robo/auto dialer hangs up when my voicemail kicks in and does not leave a message.
I receive many calls from this # no answer, no message, nothing. I dont know, but since alltel switched to verizon i now get many unknown calls!!!!! Annoying
The fools call my home daily and I work nights and attend college full time. The same thing happens as others have listed, I answer, I hear dead air, then it hangs up on me.
Also have received calls in past 30 days from 2012974636, 2012974628, 2012974634. Who/What ever is calling using a robo/auto dialer hangs up when my voicemail kicks in and does not leave a message.