My contacts simply disappeared.

Try these steps first

Make sure that iCloud Contacts, Calendars, and Reminders are available. If there's an issue, try again after it's fixed. If there isn't an issue, try these steps.

Remember to back up your contacts, calendars, and reminders, so you don't lose anything.

After each step, see if you still need help:

1. Check for updates to your iPhone, iPad, iPod touch, Mac, or PC. To use iCloud, your devices need to meet the system requirements.
2. See if the date and time settings on your iPhone, iPad, iPod touch, Mac, or PC are correct.
3. Make sure that you're signed in to iCloud with the same Apple ID on all your devices and check your settings.
   • On your iPhone, tap Settings > iCloud. Check your Apple ID and make sure that you turn on what you want to update (Contacts, Calendars, or Reminders).
   • On your Mac, choose Apple menu > System Preferences > iCloud. Check your Apple ID and make sure that you select what you want to update (Contacts, Calendars, or Reminders).
   • On your PC, open iCloud for Windows. Check your Apple ID and make sure that you select what you want to update (Mail, Contacts, Calendars, and Tasks). Reminders are called Tasks in iCloud for Windows.
4. Open Safari and go to www.apple.com to check your connection. If you can’t open the page, get help connecting to the Internet.
5. Open a secure website, like your Apple ID account page, to see if you can access port 443. If the website won't open, contact your Internet service provider for help. Safari needs access to port 443 to update your information in iCloud.
6. Keep your data within the limits. If you go over the limit, your data won't stay up to date.

If you still need help, try the steps for your device below.

Try the steps for your device

Restart the Contacts, Calendar, or Reminders app

1. Double-click the Home button to see your open apps.
2. Find the app, the swipe up to close it.
3. Press the Home button to return to your Home screen.
4. Wait a minute, then open the app again.

Turn off iCloud Contacts, Calendar, or Reminders and turn it back on

1. Tap Settings > iCloud.
2. Slide to turn off Contacts, Calendars, and Reminders.
3. If you see your calendars or reminders on iCloud.com or any of your devices, you can choose Delete from My [device]. If not, choose Keep on My [device].
4. Wait a few minutes, then turn on Contacts, Calendar, or Reminders again.

Restart your iPhone, iPad, or iPod touch

Hold down the Sleep/Wake button, then drag the slider to power off. Turn your device back on.

Cheers.

Contacts disappeared after iCloud setup

Have you tried shutting down the phone and restarting?

Try Settings/iCloud and slide off syncing. Wait a few minutes and then resync.

Have you tried signing out of iCloud and then sign back in?

Did you ever figure out how to restore your contacts? I'm finding myself facing your same struggle, and no one seems to have any solutions that are helping.