No it's not.
The numebers are stored as contacts on the phone itself.
I could upload the whole lot to a PC by synchronising with Outlook, then sync the new phone. That's what I can't be arsed doing. I tried for a little bit but lost interest when I noticed that the fingernail on the third finger of my left hand was getting a bit long.
I prefer the organic approach anyway. Most of the people you really want to speak to have been in touch within the first few weeks. Anyone who you loose touch with in this way was probably not worth bothering with.