my phone log on my i phone 5 disappeared ios 9.3.5

Hello there, lindafromport moody!

Thanks for reaching out to the Apple Support Communities! It sounds like you are needing to restore your call logs after updating your iPhone. I know how important it is that your call logs are available for you. The best way to recover information is to restore from a backup, as the call logs are stored in the backup and would be restored up to the point of the backup. Check out this article that has steps for you to Restore your iPhone, iPad, or iPod touch from a backup. Just be sure you follow the restoration method you used to backup the iPhone previously.

Cheers!