Critical Incident Management

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The following is a list of assigned port numbers for Well-Known Ports TCP and UDP. A complete listing of assigned port numbers can be found at http://iana.org/assignments/port-numbers.

Port Numbers (Updated 2/9/2003)

Port numbers are divided into three ranges:

  1. Well-Known Ports are those numbered from 0 through 1023.

  2. Registered Ports are those numbered from 1024 through 49,151.

  3. Dynamic or Private Ports are those numbered from 49,152 through 65,535.


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