Network id: 173.128.0.0/18 We have two different networks Network A has 3319 usable hosts and Network B 126 I calculated their subnet masks, but now I am not sure how to calculate their first and last usable addresses Is it 173.128.0.1 or 173.128.15.1
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3319 usable host addresses isn't possible with IP. It's always 2^n-2 for IPv4. – Zac67 Feb 27 '23 at 18:26
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This two-part answer has a section about this: Subnet Size Based on Number of Hosts – Ron Maupin Feb 27 '23 at 18:53