how many hosts r there in the world

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Question by mimi
Submitted on 8/6/2003
Related FAQ: Linux Frequently Asked Questions with Answers (Part 1 of 6)
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how many hosts r there in the world

Answer by tpcvasco
Submitted on 1/11/2004
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Considering the version of IP that we use (IPv4). Each IPs (146.164.41.2, 216.239.39.99, ...) is composed by 4 numbers with range 0 to 255. So are 4 bits in each number, forming a number of total 32 bits. So exists 2^32 = 4294967296 IPs (hosts). Now exists IPv6 too, composed by 2^48 numbers!

Answer by mac
Submitted on 3/29/2004
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4 billion

Answer by Max
Submitted on 10/3/2004
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Ipv6 actually uses 128 bits....so a bit more than 2^48...

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