When you use a VPN IP changer software on your computer or phone, you have a choice of which country you want your IP address to be. Almost any country is possible. All you need is a VPN server in that country, and you can get an IP address from there. Each VPN service is going to have a different range of VPN server locations in their network. Some services offer as few as 3-4 country locations, and some offer 40 or more. Though the quality of a VPN service cannot be determined alone by the number of country IP addresses available, you should definitely take this into considerations. Being able to switch to and from a wide range of VPN servers can help you increase your connection speed (due to distance from the server and number of other users signed in), as well as access a wider variety of websites on the internet.

The US and The UK

I would venture to say that all VPN services are going to offer a US IP or UK IP package, if not have it as their default package. Many VPN users sign up for a VPN service to access entertainment sites from around the world. Hulu, iPlayer, Netflix, Spotify, Pandora, and a huge number of other TV, movie, and music sites allow free or cheap streaming online. Most of these sites are available exclusively in The US and The UK, with the majority being in The US. With the appropriate IP address, you can access these sites as well.

Canada, The Netherlands, and Switzerland

Another immensely popular reason to use virtual private networks is to download torrents. Using a VPN to change your IP means you can avoid bandwidth limitations from your ISP as well as websites. In some countries, torrent downloaders are flagged, and may risk fines or other types of punishment. Canada, Holland, and Switzerland are very relaxed about these laws, and Canada even has laws in place that protect downloaders of torrents. Switzerland remains neutral, as usual. Torrent and P2P file sharing netizens in The US, UK, New Zealand, and Australia should use and IP from the countries suggested here.

Asia, Europe, Other

There are huge number of geo-restricted sites on the internet. Some are local sports streaming sites, some are local TV sites. Many are language specific, and may block foreign IP addresses because of distribution contracts or bandwidth limitations. I can't possibly list them all, but you'll know best what you can't access. Chances are, there's a VPN server somewhere in the world that will allow you to change your IP address and access these sites that are blocked in your area. A VPN IP changer is the tool you need to unblock them.