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smssmpp

How does Google use "Google" as a source address in text messages

I've seen other companies do this, but Google is a notable example.

When you turn on two-factor authentication with Google, one of the options is to receive an SMS when you logon. I've noticed that the sender's address, rather than being an MSISDN like 346-555-1234 is "Google".

How are they doing that?

Solution

  • In the smpp 3.4 specifications, the source address can be defined as an alphanumeric string of 11 characters