They call, don't leave a voicemail, and it just says southwest collections on the answering service. No idea who they are collecting for.

Add 779-200-3344 and 779-200-3275.

I have received several calls from this number along with 779-200-3350 that when answered ends after a moment in a hang up. I finally decided to call the numbers back and a recording states that it is "Accounts Receivable Management", but does not indicate for a company or anything. If you wait until after the recording someone will answer just saying "hello" and I decided to hang up.

This happens to be on an my office line and I work in a call center so my number has been used for several years and posted several times for other people. I figure I will just leave it as they hang up when I answer.