up2thetime wrote: » Would this be correct...? Address is: 10.0.0.0 Subnet Mask is: 255.255.240.0 So we have: 10.0.0.0 10.0.16.0 10.0.32.0 10.0.48.0 ... ... 10.0.224.0 10.0.240.0 (this block will go from 10.0.240.1 - 10.0.255.255) Then we move to: 10.1.0.0 10.1.16.0 10.1.32.0 10.1.48.0 ... ... 10.1.224.0 10.1.240.0 (this block will go from 10.1.240.1 - 10.1.255.255) Then we move to: 10.2.0.0 10.2.16.0 10.2.32.0 10.2.48.0 ... ... 10.2.224.0 10.2.240.0 (this block will go from 10.2.240.1 - 10.2.255.255) And so on, until we get to 10.255.240.0, which will go from 10.255.240.1 - 10.255.255.255. To me this makes sense and works... just wanted to run it by someone..