I don't know anyone that pays for "long distance" The only people that talk about "long distance" are usually older adults. If you don't have "caller i d" get it. The best few dollars you can spend. Only answer calls from people you know. When you answer this unwanted call you are just verifying where you live and your phone number.
Just got a call from this number on my cell phone. Caller ID says Seattle, WA. A recorded voice said something about a political survey so I hung up. Is there any way to block numbers on an iPhone?