05-26-2012 06:37 PM
Unfortunately, there isn't a way to sort contacts by those who signed up through the Text to Join feature. What I usually suggest for those people who want to sort those contacts out is to make a separate list and make it the default list for Text to Join contacts, then you can copy those to another list if you wish, and you'll be able to gauge your text to join traffic as well.
Hopefully that helps!
If you find my post helpful, and it answers your question, please mark it as an "Accepted Solution"