We would have no way to find your contact list for you.
If you have the device, and it is still working, but they somehow got deleted, the instructions I will post here 'may' help you get them back. I can't say it will for sure as once deleted, they are usually gone.
Now if you lost the phone, it was stolen or it won't work to get the contacts from, there is nothing we can do about that.
You can check your google account that was associated with the phone, if you synced to that account they may be there. If not you can also try logging into your service providers/carriers site and your account. Either there, or on your physical bill, will be a list of all the numbers you have called, those that have called you, numbers you texted...