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IP Subnet/Supernet Calculator

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The IP Subnet/Supernet Calculator is written using Swing 1.1 (Java Foundation Classes 1.1). Viewing the applet below requires the use of the Java TM Plugin 1.1.2 which can be obtained free of charge from this page.

The below applet is the demo version of the IP Subnet/Supernet Calculator and has fewer features that the commercial version.

You need a Java-enabled browser and the Java Plugin to view this applet.