Currently Being ModeratedAug 7, 2012 6:42 PM (in response to Porchgal)
No one here knows without more info.
Are you syncing contacts direct with a supported address book app on your computer via the iTunes sync process, or are you syncing contacts over the air on your iPhone with an email account that supports this such as with an Exchange account, an Apple iCloud account, a Yahoo account, a Gmail account, or Hotmail account?
Currently Being ModeratedSep 6, 2012 8:39 AM (in response to Porchgal)
Just throwing this in the mix. My contacts had disappeared as well a couple of days ago. Very upsetting. I tried a couple of things with no effect. This morning I turned my 4s iphone off, turned it back on. Went to contacts and with no contacts showing as before, I decided i would try adding a new one. I created a contact by the name of test, and saved without further info added and all my contacts came back. Don't know why but that's what happened. Good luck.
P.S. Come on Apple get the fix out on this, between the music app that doesn't play and the contacts disappearing, you're freaking us out.
Currently Being ModeratedMay 29, 2013 3:49 PM (in response to Porchgal)
My contacts (iphone 4) have disappeared three times in the last two weeks. I have had the phone for nearly two years without a problem and loved my phone. Now I am ready to switch to Android. I can restore contacts from backup but that doesn't help me when I'm not with my computer. It happened this afternoon and I was completely stuck. My phone should reliably store my contacts. If it can't do that, it's worthless to me. When I did an internet search on the problem, I found hundreds of people having the same problem and they were on all different iphones and operating systems. This is a major bug that needs to be fixed.