Originally Posted by korbend
I am on a UPC residential package (Fibre Power Broadband 5Mb) and my IP address has been static for at least the last 3 months. I can't say before that as I never checked it.
I don't know whether it's guaranteed to remain static though.
Its not guaranteed to stay static, although it more than likely will be. I've used UPC in several different houses, and the IP has only changed whenever I moved, with the exception of when my line was upgraded to Fiber. UPC dont even provide a static IP bundle.
With ADSL technology, the connection times out, and randomly selects an IP address from a pool of availible IP's. If you sign up for a static IP service, then a particular IP is reserved for you, and when the modem-exchange connection times out and is reset, the same IP is designated for your modem.