Classful addressing hasn't been a thing for nearly 25 years. People need to stop talking about it like it's still real. https://en.wikipedia.org/wiki/Classless_Inter-Domain_Routing
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Classful addressing hasn't been a thing for nearly 25 years. People need to stop talking about it like it's still real. https://en.wikipedia.org/wiki/Classless_Inter-Domain_Routing