How Do I Add My Phone Number to Duo

Summary

This article will help Students, Staff, Faculty, Alumni, and Retirees add a phone number to Duo

Body

Self-Help Article (External)

Purpose

This article will help students, staff, faculty, alumni, and retirees add a phone number to Duo

Requirements

Step-by-Step Procedures

These steps will only work if you have another device that can use Duo as an authenticator. If not, please fill out the Identity Verification Form by clicking on the "Identity Verification Form" Service in the "Related Services / Offerings" section of this article.

  1. Go to my.okstate.edu and sign in with your O-Key credentials to trigger the Duo Mobile Authenticator.
    • If the Authenticator does not appear, open a private window in your browser and retry the above step.
  2. Once the Authenticator is triggered, click "Other Options" at the bottom of the pop-up.Uploaded Image (Thumbnail)
  3. Another pop-up will appear. On this one, click "Manage Devices".Uploaded Image (Thumbnail)
  4. A pop-up will appear. Please click whatever option is best for you to authenticate with another device.Uploaded Image (Thumbnail)
  5. Once you have authenticated, click on the icon that says "Add a Device".Uploaded Image (Thumbnail)
  6. A new pop-up will appear prompting you to either install Duo Mobile, add a Security Key, or add a Phone Number. Please click "Phone Number".Uploaded Image (Thumbnail)
  7. You will then be prompted to add your phone number. Enter and press "Continue".Uploaded Image (Thumbnail)
  8. Select "Send me a passcode" to receive a confirmation code.Uploaded Image (Thumbnail)
  9. Once you have received and entered the correct passcode, a new pop-up will appear. Click "Continue." Uploaded Image (Thumbnail)
  10. A new phone number has been added to your Duo account. You should have that phone number as an option from now on whenever you authenticate to Duo.

Details

Details

Article ID: 20558
Created
Wed 1/28/26 5:06 PM
Modified
Thu 5/14/26 10:21 AM

Related Services / Offerings

Related Services / Offerings (2)

Used to verify an individuals identity to make changes to an account or recover accounts including bypass codes.
Secure assistance to verify identity and restore access when a user’s multifactor authentication methods are unavailable or lost.