Its a gmail talk account. They can call you or text you from it...if you see this number its someones computer or your spouse has their lover call from it as who it belongs to is untracable
This number (415-689-8091) showed up in my Verizon wireless bill as being a text message sender for many time. That costed me lot of money. I called this number and I got announcement "This is a non-working number".