How can i put back my contacts?

Unlike some Android devices, contacts are neither stored locally on an iPhone nor in SIM. They are synced to an email account that you had Google, iCloud, AOL, Exchange, Outlook, Yahoo or any Other

If Contacts on iCloud, try this --> Restore contacts, calendars, bookmarks, and more using ...

Else Add the email account that stores your contacts in the IOS mail app and enable Contacts.If you have a corporate email account added through a profile on your device, please check with your organisation's system administrator.

Akomuna Said:

"How can i put back my contacts?: How can i put back all my contact number stored in my phone?"

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Exporting Contacts:

Sync Through iCloud:

Have any other devices associated to this Apple ID? If so, for an iPhone and a Mac, here is what you'd do: enable Contacts in iCloud on the Mac device. Then, on your iPhone, enable Contacts. All will sync between devices. Go Here: Set up and use iCloud Contacts - Apple Support