Why did I not receive a 2FA message on my Bandwidth number?


Jessica Murray


If you didn’t receive a two-factor authentication (2FA) message, a.k.a. multi-factor authentication (MFA) or security code, on your Bandwidth number, it could be because the brand you requested it from doesn’t send 2FA messages to VoIP telephone numbers (TNs). This is a common issue within the industry for all VoIP/wireline providers, which stems from the concern some brands have with VoIP TNs being used to set up fake accounts on their websites. We see these deliverability issues most frequently when the 2FA or MFA is sent from a short code.

Although Bandwidth has engaged these brands in the past, creating a solution that keeps fraudulent uses of VoIP TNs, including Bandwidth ones, from interfering with these brands' services remains a topic of discussion. In the meantime, we’ve compiled a list of brands that don’t send 2FA messages to Bandwidth TNs:

  • Facebook
  • Google
  • Instagram
  • Outlook
  • Twitter
  • Venmo
  • Wells Fargo
  • Tinder
  • Zelle
  • Ameriprise Financial

Note: This is not a complete list. We’ll continue to update it as we learn of other brands that should be included.

Questions? Please open a ticket with your Bandwidth Support Team or hit us up at (855) 864-7776!

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