434-294-0506

I just had my old cell phone replaced with a new one by my Sprint provider.  They transferred my contacts to my new phone.  Somehow a secondary phone number for my wifes OnStar phone (434-294-0506)  in her car got set as the default on my contact info for here instead of her cell.  For 4 days I've been sending text messages to her OnStar number thinking it was going to her cell phone.  All the while someone was responding to my messages with "Who is this?" and I thought it was her joking around.  I've reassigned the correct phone number for her cell but now I'm wondering if someone has the same cell phone number as the one we've had assigned to her OnStar service for the past 4 years ?