How can I see what data I have used this period? Taylor June 07, 2018 05:15 Updated Follow You can view your current data usage and limits on the Account Details page. Visit usage.southernphone.com.au Click the Usage Data link in the navigation to see month by month and daily usage graphs. Related articles How Do I Check My Mobile Data Usage? Online Account Access NBN: How Much Data Do I Need? Mobile Broadband Data Usage Guide Mobile Data Usage Guide Comments 0 comments Article is closed for comments.