Windows Phone owners that wished to set static IP addresses on their phones can now rejoice, well, at least those with a Lumia 525, 625, or 925. A new firmware update has been rolling out for those models that ever so slightly bumps the version number up to 1425.0003 from 1425.0002, and brings along static IP support and generic “bug fixes”.
Simply put, static IP addresses are uniquely assigned to devices connected to a network. However, due to the growth of the internet and the number of devices that can connect to it, Internet Service Providers have run out of unique/static IP’s to assign, and so they started leasing addresses out, also known as dynamic IP addresses. Although, static IP’s are still used when connecting devices in local networks, between your router and your phone for example.