Received several calls on my cell phone, no message, when I completed reverse phone number - came up as "private number." Also did reverse phone number for business - came up as "number unknown."

'These people have been calling me for months!  How can I get them to stop??' Phone them, ask them to take you off their call list. If they continue, tell them you'll take legal action. If it continues after that, take legal action. At that point it's considered harassment.

This number calls numerous times.  Dead Air
This is a medical office that can not have it's lines tied up with these types of calls.

This number is frequently showing up on my phone - I don't know who it is. When I try to call back it says "The Number You Have Reached Is Not In Service - This is a recording".This should be stopped - it is very annoying.  If you happen to answer there is not response.

Received a call but the number ws not in service when I tried to call back.

This number calls numerous times.  Dead AirThis is a medical office that can not have it's lines tied up with these types of calls.