IP Address (V4) With Port Regular Expression

Category: URI

A regular expression to match all valid IP addresses (v4) with and without ports.

/^((\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5])\.){3}(\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5])(?::(?:[0-9]|[1-9][0-9]{1,3}|[1-5][0-9]{4}|6[0-4][0-9]{3}|65[0-4][0-9]{2}|655[0-2][0-9]|6553[0-5]))?$/

IP Address (V4) Examples:

  • 127.0.0.1
  • 127.0.0.1:8080

See Also:

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Expression Flags

Flags Description
i Ignore case sensitive.
g Allows global search.
m Allows multiline search.