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replaced https://tools.ietf.org/html/rfc with https://www.rfc-editor.org/rfc/rfc
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I was just reading RFC4632 "2. History and Problem Description""2. History and Problem Description" and I don't get the part about Class A with MSB '00'. That would in my understanding mean, there are actually only 64 available networks, which collides with my knowledge, that there are more /8 networks actually. The RFC also suggest, there are 128 possible networks in Class A, which would mean, there is only one MSB '0' e.g. From what I read in older RFCs, such as RFC1166 section Network NumbersRFC1166 section Network Numbers, there is only MSB '0' in Class A.

So what have I missed? In case, the RFC would be incorrect, whom should I contact to correct it?

I was just reading RFC4632 "2. History and Problem Description" and I don't get the part about Class A with MSB '00'. That would in my understanding mean, there are actually only 64 available networks, which collides with my knowledge, that there are more /8 networks actually. The RFC also suggest, there are 128 possible networks in Class A, which would mean, there is only one MSB '0' e.g. From what I read in older RFCs, such as RFC1166 section Network Numbers, there is only MSB '0' in Class A.

So what have I missed? In case, the RFC would be incorrect, whom should I contact to correct it?

I was just reading RFC4632 "2. History and Problem Description" and I don't get the part about Class A with MSB '00'. That would in my understanding mean, there are actually only 64 available networks, which collides with my knowledge, that there are more /8 networks actually. The RFC also suggest, there are 128 possible networks in Class A, which would mean, there is only one MSB '0' e.g. From what I read in older RFCs, such as RFC1166 section Network Numbers, there is only MSB '0' in Class A.

So what have I missed? In case, the RFC would be incorrect, whom should I contact to correct it?

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Ron Maupin ♦
Ron Maupin ♦
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AdamKalisz
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Class A most significant bits '0' as in RFC1166 or older or '00' as suggested in RFC4632?

I was just reading RFC4632 "2. History and Problem Description" and I don't get the part about Class A with MSB '00'. That would in my understanding mean, there are actually only 64 available networks, which collides with my knowledge, that there are more /8 networks actually. The RFC also suggest, there are 128 possible networks in Class A, which would mean, there is only one MSB '0' e.g. From what I read in older RFCs, such as RFC1166 section Network Numbers, there is only MSB '0' in Class A.

So what have I missed? In case, the RFC would be incorrect, whom should I contact to correct it?