Am I Able To Use Premium Services On The NBN? Isobella April 03, 2019 04:22 Updated Follow Unfortunately, Premium Services such as 19/1900 numbers are not available on the nbn™ network through Southern Phone. Related articles Special Calls: 1900 / Premium Services Can I change my nbn™ Speed? What can I do to reduce my bill? How Do I Disconnect / Cancel My NBN Service? How Do I Check My Mobile Data Usage? Comments 0 comments Article is closed for comments.