Hey, this looks like a mix of formatting and configuration issues. The number changing during CSV upload usually happens because it’s being treated as a number instead of text, so parts of it get altered—saving the column as text in proper E.164 format before uploading should stop that. For the calls not going through, even with everything enabled, Twilio can still block international calls if the specific number or project isn’t fully permitted for those regions or if the caller ID setup isn’t aligned. I can take a closer look at your setup and pinpoint exactly what’s causing it just share a bit more detail or screenshots and I’ll help you fix it quickly @fasihkhan