Twilio Question on SMS notifications and Other Country Support

Hi there, I have read a few posts from April of this year on Twilio. I was just wondering if this service will work with UK & Irish numbers or is it still only USA and Canada for now? Also will it send notifications to the user who completes the form or will it only send admin notifications? I know this may have been asked but I was just wondering if there was any update since April of this year. I think this addon would be very useful if the notifications went to the user who completes the form and also support outside of the states and canada - maybe this support for other countries relies on Twilio themselves rather than you guys. Any update on this would be much appreciated as its a necessity for me really.