I ran out of credit on my prepay cellphone as I use it to connect to the internet by tethering it to my PC. I was changing the last oclet of the IP which was associated with the "...sorry, your have insufficient funds to continue browsing, please topup." located at http://pdaportal.telecom.co.nz/mobile/static/outoffunds.html (

I came up with:

Does anyone know what these would be used for?