Does anyone know from which countries NGN do not work. This would be useful for people going abroad who could get any relevant GN for doctor, insurance co etc. before they go. It could also be used to try and get numbers out of reluctant companies if you could say with some degree of certainty you were going to XYZ (even if you weren't) and I need to be able to contact you. Is there a list somewhere or would it be possible to compile one from members experience?