Can I Use An Authenticator App If My Phone Is Not Connected To Cell Service? May 14, 2024 19:55 Updated Yes, authenticator apps are accessible offline as well. Related articles What Type Of 2FA Is Available? Create a New CenturyLink Email Address: A Step-by-Step Guide What If My Mobile Device Is Lost Or Stolen? Why can't I access my email in my desktop or mobile email client after enabling 2FA? Is The Authenticator App More Secure Than Texting?