Address Calculator

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The forms below give you the ability to calculate various properties of IP addresses and the texts around them give you some hints about how to use them.

IPv4 Addresses

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IPv4 to IPv6 Transitional

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IPv6 Addresses and Networks

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JS Addr Calc revision 20120802
© Konrad Rosenbaum, 2012
This script is protected under the GNU GPL version 3 or at your option any newer.

Please mail patches to me (konrad@silmor.de) if you have any interesting additions for it.