How long have you had the same cell phone number? (Update)

Kind of a spin off from the hs class reunion thread.

I graduated hs in 2005 and I got a cell phone probably towards the end of my sophomore year in 2003. I have never changed the number, so this number has been with me for 19 years, roughly. I still have hs contacts in my phone from that time. What are the odds they also never changed their numbers? Prior to randomly contacting some people, I am hoping this thread will give me an idea of how long some people keep their numbers. My area code isn't even from Louisiana, but I have never bothered to change the number.

Key topics (short version):

1. How long have you had your current cellphone number?

2. Does the area code for your cell match the area you live?

(Update):

It seems that the general concensus is most people have had the same number since the initial obtaining of a cell phone. Upon review of the responses, this started approximately circa 2000+/-, which seems to be about the time it really started taking off.