If you called the 2148440000 number and got time and temp, and waited for a while, you would get dial tone back. This was BOA's dial tone from their pbx. If you then dialed out, the number you called would gat the caller ID from BOA saying they were getting the call from 2148440000. Kids used this to prank call a lot. I think the BOA number in Dallas has now been changed because of this, or could be that they just got a new PBX. As much as I dislike BOA, It was not actually them that was making the outgoing calls.
I received a call from this number, and I ignored it. They left me a voicemail saying that if I my car was still for sale, and I wanted to get top dollar to call them back. Sounds like a scam to me!
They called my cell phone. I said hello twice they just hung up. When I called back I got some recording that told me about Bank of America checking, then told me the time and the weather.