Welcome to Android Central! I edited out your phone number from the thread title -- do not include private identifying information in your posts, for your own safety.
Did you save the contacts to your Google account? If so, go to contacts.google.com on your computer browser -- they should be there. If you only saved them to the local Phone account (which I always discourage), then they didn't sync anywhere automatically -- you would've had to back them up yourself manually. Assuming you didn't, then they're gone. Sorry!