Currently there are 15
types of electrical outlet plugs in use today, each of which has been
assigned a letter by the US Department of Commerce International Trade
Administration (ITA), starting with A and moving through the alphabet.
These letters are completely arbitrary: they don't actually mandate
Click here for a global map showing the spread of the different plug types used around the world.
Click here for a detailed list of the countries of the world with their respective plug and outlet types, voltage and frequency.