Anzahl Adressen Bit Subnetzmaske
1 /32 255.255.255.255
2 /31 255.255.255.254
4 /30 255.255.255.252
8 /29 255.255.255.248
16 /28 255.255.255.240
32 /27 255.255.255.224
64 /26 255.255.255.192
128 /25 255.255.255.128
256 /24 1C 255.255.255.0
512 /23 2C 255.255.254.0
1K /22 4C 255.255.252.0
2K /21 8C 255.255.248.0
4K /20 16C 255.255.240.0
8K /19 32C 255.255.224.0
16K /18 64C 255.255.192.0
32K /17 128C 255.255.128.0
64K /16 1B 255.255.0.0
128K /15 2B 255.254.0.0
256K /14 4B 255.252.0.0
512K /13 8B 255.248.0.0
1M /12 16B 255.240.0.0
2M /11 32B 255.224.0.0
4M /10 64B 255.192.0.0
8M /9 128B 255.128.0.0
16M /8 1A 255.0.0.0
32M /7 2A 254.0.0.0
64M /6 4A 252.0.0.0
128M /5 8A 248.0.0.0
256M /4 16A 240.0.0.0
512M /3 32A 224.0.0.0
1024M /2 64A 192.0.0.0