Where can I check my ADSL usage? Taylor July 17, 2019 01:11 Updated Follow To check your ADSL usage, log in to the My Account section of our website with your Account Number and Password. Related articles How Do I Check My Mobile Data Usage? Modem Settings for your ADSL Connection How to Register for Online Access to Your Southern Phone Account ADSL: How Much Data Do I Need? Am I able to use my own modem or a modem from another provider? Comments 0 comments Article is closed for comments.