Since i did the ios update allot of my contacts are missing
Since I updated my phone allot of my contacts are missing on my phone.
iPhone XS
There two possibilities to look at: Most likely your missing contacts are stored in iCloud and you need to refresh or re-enable Contacts to sync with iCloud. Much less likely (but slightly possible) is that your contacts are stored on your SIM card and you need to re-import them.
Make sure your iCloud Contacts are enabled. If it's already enabled you can turn it off for a few seconds, then back on.
https://support.apple.com/en-us/HT202340
If that doesn't work you can refresh your contacts (click on your version of iOS a few paragraphs down)
https:https://support.apple.com/en-us/HT202340
Here is how you can import contacts from your SIM (again, this is very unlikely the issue, just a remote possibility)
https://support.apple.com/en-us/HT202340
Finally, if nothing works you can use a computer to go to www.icloud.com and view your contacts as they are stored on Apple's iCloud server to verify they are even on iCloud.