It comes from the Texas Valley (McAllen-Mission-Pharr) they are college telemarketers, all you need to do after the queue is dial 2# so they erase your number from being called (I hope)
Don't know what's up with these people. They call me looking for Shannon, and when I ask to verify where they are calling from, they the man told me that's none of my business and he is not obligated to tell me and and then hung up. I called back and some other guy answered and said "This is Robert from (what sounded like he said: sud soap), is this Shannon". I asked again where they were calling from, and he replied, if this is not Shannon, its none of your business. I told him, my friend Shannon is staying with me and he was probably looking for her. I asked him if he wanted to leave a message and he got mad and said, oh no I cannot leave you a message, quit lying to me and I will only speak to Shannon. And he hung up. Jerks!!!