What is an IPv4 Number Block?

Photo by Taylor Vick on Unsplash
An table show for each class, the corresponding CIDR, beginning & ending address, and purpose.
A table showing for each CIDR, the mask, number of class-full blocks, number of IP addresses

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Addrex, Inc.

Addrex, Inc.

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Addrex, Inc. pioneered the secondary IPv4 number block market and provides a global marketplace for buying and selling IPv4 number block rights.