Ok, I'm posting this up for those that don't know and those that are still confused as to how many IPs come with a /26 or a /28 etc. as I can tell you I am. I hate these to be honest with you... /20 - 4096 IPs /21 - 2048 IPs /22 - 1024 IPs /23 - 512 IPs /24 - 256 IPs /25 - 128 IPs /26 - 64 IPs /27 - 32 IPs /28 - 16 IPs /29 - 8 IPs /30 - 4 IPs :684:
IP Mask/Range Calculator: http://jodies.de/ipcalc A few more subnet tools: http://www.subnetonline.com/pages/subnet-calculators.php The first one identifies those "special IPs".