You can add any number to TrueCNAM as long as you own it, it is in a geographic area we allow (which you can check here), and you can receive a phone call or text message on it.
The carrier that provides service to your number isn't relevant, only the area of the world it is in.
For example, here's a few common carriers and service providers that we are asked about, and that you can add to TrueCNAM:
- Google Voice
- Skype