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Computer Networks I IP addressing

Computer Networks I IP addressing

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<strong>Computer</strong> <strong>Networks</strong> I 8<br />

Classful Addressing<br />

Classes:<br />

●<br />

A: 2 31 addresses (50%) 1.0.0.0 - 127.255.255.255<br />

●<br />

B: 2 30 addresses (25%) 128.0.0.0 - 191.255.255.255<br />

●<br />

C: 2 29 addresses (12,5%) 192.0.0.0 - 223.255.255.255<br />

●<br />

D: 2 28 addresses (6,25%) 224.0.0.0 - 239.255.255.255<br />

●<br />

E: 2 28 addresses (6,25%) 240.0.0.0 - 255.255.255.255<br />

The IANA (Internet Assigned Numbers Authority) assignees address<br />

blocks. IANA depends on ICANN (Internet Corporation for Assigned<br />

Names and Numbers).<br />

i<br />

<strong>IP</strong>v4 address block assignments in:<br />

http://www.iana.org/assignments/ipv4-address-space/ipv4-address-space.xml

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