Duo / Check the Rate Card for international travel

Note: Effective Tuesday, July 14, 2020, the Duo Call Me and landline options are no longer available


  • To provide access to the Duo Rate Card to discover or verify credit charges for use during international travel 
  • To provide information about offline Duo authentication options for use during international travel


  • Duo provides offline authentication options for times when you are without cell service or traveling internationally
    • The passcode option on the Duo Mobile app does not require wireless or cellular connectivity; and it can be used in airplane mode


  • 312306: Duo Security Two-factor Authentication


  • When traveling outside of the continental United States, authentication via SMS text may not work, because Duo's rate charges exceed the limit of 20 credits


  • Before traveling internationally, check the Duo Rate Card to see if the rate charge for a single SMS text message is less than 20 credits
    • Duo will not send an SMS text message, if a single SMS text message uses more than 20 credits
  • If the location credit rate exceeds 20 credits, the use the preferred offline authentication method: the option to generate a passcode in the Duo Mobile app on your device
    1. Open the Duo Mobile app on your device and generate a single-use passcode within the app
    2. Enter the code provided in the passcode field of the Duo authentication prompt 
  • If you use a different phone when in your home country and don't have a data or cellular plan with your U.S. smartphone:
  • If you don't have Duo Mobile installed on a device:
  • If you do not have access to any of the options listed, contact the IT Help at 513-529-7900 for assistance





Article ID: 70180
Tue 1/15/19 11:11 AM
Tue 7/6/21 11:34 AM
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