This article will explain how you can view the bandwidth you have used with your 123-reg Hosting package. Bandwidth dictates how much traffic can pass between your website and the rest of the internet. At 123-reg, Hosting packages have unlimited bandwidth, so you don't have to worry about any excess charges, but its still an interesting thing to keep an eye on.
Scroll down to the Web Hosting section and click the Manage button.
Scroll down to the Web Stats and Logs section and click the Webalizer Statistics button.
Your bandwidth usage is displayed in two ways: in the form of a graph and the form of a table, and are split into three time periods: the last 24 hours, the past 31 days and the past 12 months.