480-389-1252

I answer and they hang-up and if you call the # back its the same thing.

Called and hang up

Same thing here. Just left a call, no voicemail, no text, no nothin'!

Called number back as we have relatives in AZ.  Charter Communications.

Keeps calling. Leaves no message. When I call back they hang up

Didn't answer, they didn't leave a voicemail.  Blocked them

This is the second time I got this call from this number and still the caller left no voicemail or text message from this number.

This is the third time I keep getting called from this number. I'm getting quite sick of getting a call from this number at this point. Three times I'm getting called from this number and they don't leave a VM or text message identifying the caller. I am 100% beyond annoyed.

Telemarketing for spectrum cable internet

They call and don't leave a message and I don't know who they are

Five times this month, I have been receiving calls from this number. A reverse directory of this number returns as Neutral Tandem VoIP. A 411 (dot) com result of this inquiry also suggests medium spam activity. It is not Charter, it is not any other carrier. The person calling from this number is disguising it as a number from Charter or from Verizon, or something totally different. I could be wrong with this presumption. But, in any case, it's best to block it. I'm new to this concept and would like your help if anything on how to block this number from calling my cell phone.

This must be a new record for me. Six total calls from this exact number! Who the heck is calling from this Neutral Tandem number?!  Doesn't this caller ever quit?!

Called, no message!

Seven calls have been attempted from this very number. Ain't too happy about it.