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A public IP address is a unique identifier assigned to a device that is connected to the internet, such as a computer or a router. It is visible to other devices on the internet and can be used to communicate with those devices.
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Contrast: Private, Dynamic & Static IP Addresses
A public IP address is a unique identifier that is visible to the internet, while private IP addresses are used for internal communication within a private network. Dynamic IP addresses change over time, while static IP addresses remain fixed.
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Static IP addresses are fixed IP addresses that do not change over time. They are commonly used for servers and other devices that need to be accessible from the internet at all times.
Private IP Addresses
There are three ranges of private IP addresses defined by the internet standard RFC 1918:
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