I don't know what this number is, because I refuse to answer numbers if I don't recognize them, or if there is no Caller ID on my land-line, or if they are not in my cell phone Contact list. Basically, if I don't know who it is, why the heck should I waste my time talking to them?
The really obnoxious part is that SOMEONE has either been careless, or has deliberately sold my number, because my land-line number is unlisted, and especially, I don't give out my cell phone number unless absolutely necessary.