ios7 - all my phone numbers just disappeared

iPhone 5S

64GB

Version 7.0.4 (11B554a)

AT&T 15.5

I was texing some friends back & forth. In the last reply text, I noticed it did not show my friends names, just their phone numbers. Looked at all my other previous texts and everything is listed as phone numbers. All the names are gone.

Went to my contacts and everyone's phone numbers have disappeared. All the contacts are still there, just no phone numbers for anyone.

I have not done a recent update and I don't use iCloud. It has always been turned off. The only thing I was doing with the phone was texting. All other apps were closed.

Any suggestions?

-erich168