Subnet Cheatsheet
Subnet Cheatsheet
| Netmask | CIDR | Binary Notation | Addresses | Hosts | Amount of a Class C |
|---|---|---|---|---|---|
| 255.255.255.252 | /30 | 11111111.11111111.11111111.11111100 | 4 | 2 | 1/64 |
| 255.255.255.248 | /29 | 11111111.11111111.11111111.11111000 | 8 | 6 | 1/32 |
| 255.255.255.240 | /28 | 11111111.11111111.11111111.11110000 | 16 | 14 | 1/16 |
| 255.255.255.224 | /27 | 11111111.11111111.11111111.11100000 | 32 | 30 | 1/8 |
| 255.255.255.192 | /26 | 11111111.11111111.11111111.11000000 | 64 | 62 | 1/4 |
| 255.255.255.128 | /25 | 11111111.11111111.11111111.10000000 | 128 | 126 | 1/2 |
| 255.255.255.0 | /24 | 11111111.11111111.11111111.00000000 | 256 | 254 | 1 |
| 255.255.254.0 | /23 | 11111111.11111111.11111110.00000000 | 512 | 510 | 2 |
| 255.255.252.0 | /22 | 11111111.11111111.11111100.00000000 | 1024 | 1022 | 4 |
| 255.255.248.0 | /21 | 11111111.11111111.11111000.00000000 | 2048 | 2046 | 8 |
| 255.255.240.0 | /20 | 11111111.11111111.11110000.00000000 | 4096 | 4094 | 16 |
| 255.255.224.0 | /19 | 11111111.11111111.11100000.00000000 | 8192 | 8190 | 32 |
| 255.255.192.0 | /18 | 11111111.11111111.11000000.00000000 | 16384 | 16382 | 64 |
| 255.255.128.0 | /17 | 11111111.11111111.10000000.00000000 | 32768 | 32766 | 128 |
| 255.255.0.0 | /16 | 11111111.11111111.00000000.00000000 | 65536 | 65534 | 256 |
| 255.254.0.0 | /15 | 11111111.11111110.00000000.00000000 | 131072 | 131070 | 512 |
| 255.252.0.0 | /14 | 11111111.11111100.00000000.00000000 | 262144 | 262142 | 1024 |
| 255.248.0.0 | /13 | 11111111.11111000.00000000.00000000 | 524288 | 524286 | 2048 |
| 255.240.0.0 | /12 | 11111111.11110000.00000000.00000000 | 1048576 | 1048574 | 4096 |
| 255.224.0.0 | /11 | 11111111.11100000.00000000.00000000 | 2097152 | 2097150 | 8192 |
| 255.192.0.0 | /10 | 11111111.11000000.00000000.00000000 | 4194304 | 4194302 | 16384 |
| 255.128.0.0 | /9 | 11111111.10000000.00000000.00000000 | 8388608 | 8388606 | 32768 |
| 255.0.0.0 | /8 | 11111111.00000000.00000000.00000000 | 16777216 | 16777214 | 65536 |
/32 -- 1 Subnet -- 1 Host/Subnet
Address: 192.168.0.0 11000000.10101000.00000000.00000000
Netmask: 255.255.255.255 = 32 11111111.11111111.11111111.11111111
Wildcard: 0.0.0.0 00000000.00000000.00000000.00000000
=>
Network: 192.168.0.0/32 11000000.10101000.00000000.00000000
Broadcast: 192.168.0.0 11000000.10101000.00000000.00000000
HostMin: 192.168.0.0 11000000.10101000.00000000.00000000
HostMax: 192.168.0.0 11000000.10101000.00000000.00000000
Hosts/Net: 1
/31 -- 2 Subnets -- 2 Hosts/Subnet
Address: 192.168.0.0 11000000.10101000.00000000.00000000
Netmask: 255.255.255.254 = 31 11111111.11111111.11111111.11111110
Wildcard: 0.0.0.1 00000000.00000000.00000000.00000001
=>
Network: 192.168.0.0/31 11000000.10101000.00000000.00000000
Broadcast: 192.168.0.1 11000000.10101000.00000000.00000001
HostMin: 192.168.0.0 11000000.10101000.00000000.00000000
HostMax: 192.168.0.1 11000000.10101000.00000000.00000001
Hosts/Net: 2
/30 -- 4 Subnets -- 2 Hosts/Subnet
Address: 192.168.0.0 11000000.10101000.00000000.00000000
Netmask: 255.255.255.252 = 30 11111111.11111111.11111111.11111100
Wildcard: 0.0.0.3 00000000.00000000.00000000.00000011
=>
Network: 192.168.0.0/30 11000000.10101000.00000000.00000000
Broadcast: 192.168.0.3 11000000.10101000.00000000.00000011
HostMin: 192.168.0.1 11000000.10101000.00000000.00000001
HostMax: 192.168.0.2 11000000.10101000.00000000.00000010
Hosts/Net: 2
/29 -- 8 Subnets -- 6 Hosts/Subnet
Address: 192.168.0.0 11000000.10101000.00000000.00000000
Netmask: 255.255.255.248 = 29 11111111.11111111.11111111.11111000
Wildcard: 0.0.0.7 00000000.00000000.00000000.00000111
=>
Network: 192.168.0.0/29 11000000.10101000.00000000.00000000
Broadcast: 192.168.0.7 11000000.10101000.00000000.00000111
HostMin: 192.168.0.1 11000000.10101000.00000000.00000001
HostMax: 192.168.0.6 11000000.10101000.00000000.00000110
Hosts/Net: 6
/28 -- 16 Subnets -- 14 Hosts/Subnet
Address: 192.168.0.0 11000000.10101000.00000000.00000000
Netmask: 255.255.255.240 = 28 11111111.11111111.11111111.11110000
Wildcard: 0.0.0.15 00000000.00000000.00000000.00001111
=>
Network: 192.168.0.0/28 11000000.10101000.00000000.00000000
Broadcast: 192.168.0.15 11000000.10101000.00000000.00001111
HostMin: 192.168.0.1 11000000.10101000.00000000.00000001
HostMax: 192.168.0.14 11000000.10101000.00000000.00001110
Hosts/Net: 14
/27 -- 32 Subnets -- 30 Hosts/Subnet
Address: 192.168.0.0 11000000.10101000.00000000.00000000
Netmask: 255.255.255.224 = 27 11111111.11111111.11111111.11100000
Wildcard: 0.0.0.31 00000000.00000000.00000000.00011111
=>
Network: 192.168.0.0/27 11000000.10101000.00000000.00000000
Broadcast: 192.168.0.31 11000000.10101000.00000000.00011111
HostMin: 192.168.0.1 11000000.10101000.00000000.00000001
HostMax: 192.168.0.30 11000000.10101000.00000000.00011110
Hosts/Net: 30
/26 -- 64 Subnets -- 62 Hosts/Subnet
Address: 192.168.0.0 11000000.10101000.00000000.00000000
Netmask: 255.255.255.192 = 26 11111111.11111111.11111111.11000000
Wildcard: 0.0.0.63 00000000.00000000.00000000.00111111
=>
Network: 192.168.0.0/26 11000000.10101000.00000000.00000000
Broadcast: 192.168.0.63 11000000.10101000.00000000.00111111
HostMin: 192.168.0.1 11000000.10101000.00000000.00000001
HostMax: 192.168.0.62 11000000.10101000.00000000.00111110
Hosts/Net: 62
/25 -- 128 Subnets -- 126 Hosts/Subnet
Address: 192.168.0.0 11000000.10101000.00000000.00000000
Netmask: 255.255.255.128 = 25 11111111.11111111.11111111.10000000
Wildcard: 0.0.0.127 00000000.00000000.00000000.01111111
=>
Network: 192.168.0.0/25 11000000.10101000.00000000.00000000
Broadcast: 192.168.0.127 11000000.10101000.00000000.01111111
HostMin: 192.168.0.1 11000000.10101000.00000000.00000001
HostMax: 192.168.0.126 11000000.10101000.00000000.01111110
Hosts/Net: 126
/24 -- 1 Subnet -- 254 Hosts/Subnet
Address: 192.168.0.0 11000000.10101000.00000000.00000000
Netmask: 255.255.255.0 = 24 11111111.11111111.11111111.00000000
Wildcard: 0.0.0.255 00000000.00000000.00000000.11111111
=>
Network: 192.168.0.0/24 11000000.10101000.00000000.00000000
Broadcast: 192.168.0.255 11000000.10101000.00000000.11111111
HostMin: 192.168.0.1 11000000.10101000.00000000.00000001
HostMax: 192.168.0.254 11000000.10101000.00000000.11111110
Hosts/Net: 254
/23 -- 2 Subnets -- 510 Hosts/Subnet
Address: 192.168.0.0 11000000.10101000.00000000.00000000
Netmask: 255.255.254.0 = 23 11111111.11111111.11111110.00000000
Wildcard: 0.0.1.255 00000000.00000000.00000001.11111111
=>
Network: 192.168.0.0/23 11000000.10101000.00000000.00000000
Broadcast: 192.168.1.255 11000000.10101000.00000001.11111111
HostMin: 192.168.0.1 11000000.10101000.00000000.00000001
HostMax: 192.168.1.254 11000000.10101000.00000001.11111110
Hosts/Net: 510
/22 -- 4 Subnets -- 1022 Hosts/Subnet
Address: 192.168.0.0 11000000.10101000.00000000.00000000
Netmask: 255.255.252.0 = 22 11111111.11111111.11111100.00000000
Wildcard: 0.0.3.255 00000000.00000000.00000011.11111111
=>
Network: 192.168.0.0/22 11000000.10101000.00000000.00000000
Broadcast: 192.168.3.255 11000000.10101000.00000011.11111111
HostMin: 192.168.0.1 11000000.10101000.00000000.00000001
HostMax: 192.168.3.254 11000000.10101000.00000011.11111110
Hosts/Net: 1022
/21 -- 8 Subnets -- 2046 Hosts/Subnet
Address: 192.168.0.0 11000000.10101000.00000000.00000000
Netmask: 255.255.248.0 = 21 11111111.11111111.11111000.00000000
Wildcard: 0.0.7.255 00000000.00000000.00000111.11111111
=>
Network: 192.168.0.0/21 11000000.10101000.00000000.00000000
Broadcast: 192.168.7.255 11000000.10101000.00000111.11111111
HostMin: 192.168.0.1 11000000.10101000.00000000.00000001
HostMax: 192.168.7.254 11000000.10101000.00000111.11111110
Hosts/Net: 2046
/20 -- 16 Subnets -- 4094 Hosts/Subnet
Address: 192.168.0.0 11000000.10101000.00000000.00000000
Netmask: 255.255.240.0 = 20 11111111.11111111.11110000.00000000
Wildcard: 0.0.15.255 00000000.00000000.00001111.11111111
=>
Network: 192.168.0.0/20 11000000.10101000.00000000.00000000
Broadcast: 192.168.15.255 11000000.10101000.00001111.11111111
HostMin: 192.168.0.1 11000000.10101000.00000000.00000001
HostMax: 192.168.15.254 11000000.10101000.00001111.11111110
Hosts/Net: 4094
/19 -- 32 Subnets -- 8190 Hosts/Subnet
Address: 192.168.0.0 11000000.10101000.00000000.00000000
Netmask: 255.255.224.0 = 19 11111111.11111111.11100000.00000000
Wildcard: 0.0.31.255 00000000.00000000.00011111.11111111
=>
Network: 192.168.0.0/19 11000000.10101000.00000000.00000000
Broadcast: 192.168.31.255 11000000.10101000.00011111.11111111
HostMin: 192.168.0.1 11000000.10101000.00000000.00000001
HostMax: 192.168.31.254 11000000.10101000.00011111.11111110
Hosts/Net: 8190
/18 -- 64 Subnets -- 16382 Hosts/Subnet
Address: 192.168.0.0 11000000.10101000.00000000.00000000
Netmask: 255.255.192.0 = 18 11111111.11111111.11000000.00000000
Wildcard: 0.0.63.255 00000000.00000000.00111111.11111111
=>
Network: 192.168.0.0/18 11000000.10101000.00000000.00000000
Broadcast: 192.168.63.255 11000000.10101000.00111111.11111111
HostMin: 192.168.0.1 11000000.10101000.00000000.00000001
HostMax: 192.168.63.254 11000000.10101000.00111111.11111110
Hosts/Net: 16382
/17 -- 128 Subnets -- 32766 Hosts/Subnet
Address: 192.168.0.0 11000000.10101000.00000000.00000000
Netmask: 255.255.128.0 = 17 11111111.11111111.10000000.00000000
Wildcard: 0.0.127.255 00000000.00000000.01111111.11111111
=>
Network: 192.168.0.0/17 11000000.10101000.00000000.00000000
Broadcast: 192.168.127.255 11000000.10101000.01111111.11111111
HostMin: 192.168.0.1 11000000.10101000.00000000.00000001
HostMax: 192.168.127.254 11000000.10101000.01111111.11111110
Hosts/Net: 32766
/16 -- 256 Subnets -- 65534 Hosts/Subnet
Address: 192.168.0.0 11000000.10101000.00000000.00000000
Netmask: 255.255.0.0 = 16 11111111.11111111.00000000.00000000
Wildcard: 0.0.255.255 00000000.00000000.11111111.11111111
=>
Network: 192.168.0.0/16 11000000.10101000.00000000.00000000
Broadcast: 192.168.255.255 11000000.10101000.11111111.11111111
HostMin: 192.168.0.1 11000000.10101000.00000000.00000001
HostMax: 192.168.255.254 11000000.10101000.11111111.11111110
Hosts/Net: 65534
/15 -- 512 Subnets -- 131070 Hosts/Subnet
Address: 192.168.0.0 11000000.10101000.00000000.00000000
Netmask: 255.254.0.0 = 15 11111111.11111110.00000000.00000000
Wildcard: 0.1.255.255 00000000.00000001.11111111.11111111
=>
Network: 192.168.0.0/15 11000000.10101000.00000000.00000000
Broadcast: 192.169.255.255 11000000.10101001.11111111.11111111
HostMin: 192.168.0.1 11000000.10101000.00000000.00000001
HostMax: 192.169.255.254 11000000.10101001.11111111.11111110
Hosts/Net: 131070
/14 -- 1024 Subnets -- 262142 Hosts/Subnet
Address: 192.168.0.0 11000000.10101000.00000000.00000000
Netmask: 255.252.0.0 = 14 11111111.11111100.00000000.00000000
Wildcard: 0.3.255.255 00000000.00000011.11111111.11111111
=>
Network: 192.168.0.0/14 11000000.10101000.00000000.00000000
Broadcast: 192.171.255.255 11000000.10101011.11111111.11111111
HostMin: 192.168.0.1 11000000.10101000.00000000.00000001
HostMax: 192.171.255.254 11000000.10101011.11111111.11111110
Hosts/Net: 262142
/13 -- 2048 Subnets -- 524286 Hosts/Subnet
Address: 192.168.0.0 11000000.10101000.00000000.00000000
Netmask: 255.248.0.0 = 13 11111111.11111000.00000000.00000000
Wildcard: 0.7.255.255 00000000.00000111.11111111.11111111
=>
Network: 192.168.0.0/13 11000000.10101000.00000000.00000000
Broadcast: 192.175.255.255 11000000.10101111.11111111.11111111
HostMin: 192.168.0.1 11000000.10101000.00000000.00000001
HostMax: 192.175.255.254 11000000.10101111.11111111.11111110
Hosts/Net: 524286
/12 -- 4096 Subnets -- 1048574 Hosts/Subnet
Address: 192.168.0.0 11000000.10101000.00000000.00000000
Netmask: 255.240.0.0 = 12 11111111.11110000.00000000.00000000
Wildcard: 0.15.255.255 00000000.00001111.11111111.11111111
=>
Network: 192.168.0.0/12 11000000.10101000.00000000.00000000
Broadcast: 192.175.255.255 11000000.10101111.11111111.11111111
HostMin: 192.168.0.1 11000000.10101000.00000000.00000001
HostMax: 192.175.255.254 11000000.10101111.11111111.11111110
Hosts/Net: 1048574
/11 -- 8192 Subnets -- 2097150 Hosts/Subnet
Address: 192.168.0.0 11000000.10101000.00000000.00000000
Netmask: 255.224.0.0 = 11 11111111.11100000.00000000.00000000
Wildcard: 0.31.255.255 00000000.00011111.11111111.11111111
=>
Network: 192.168.0.0/11 11000000.10101000.00000000.00000000
Broadcast: 192.199.255.255 11000000.10101111.11111111.11111111
HostMin: 192.168.0.1 11000000.10101000.00000000.00000001
HostMax: 192.199.255.254 11000000.10101111.11111111.11111110
Hosts/Net: 2097150
/10 -- 16384 Subnets -- 4194302 Hosts/Subnet
Address: 192.168.0.0 11000000.10101000.00000000.00000000
Netmask: 255.192.0.0 = 10 11111111.11000000.00000000.00000000
Wildcard: 0.63.255.255 00000000.00111111.11111111.11111111
=>
Network: 192.168.0.0/10 11000000.10101000.00000000.00000000
Broadcast: 192.231.255.255 11000000.10101111.11111111.11111111
HostMin: 192.168.0.1 11000000.10101000.00000000.00000001
HostMax: 192.231.255.254 11000000.10101111.11111111.11111110
Hosts/Net: 4194302
/9 -- 32768 Subnets -- 8388606 Hosts/Subnet
Address: 192.168.0.0 11000000.10101000.00000000.00000000
Netmask: 255.128.0.0 = 9 11111111.10000000.00000000.00000000
Wildcard: 0.127.255.255 00000000.01111111.11111111.11111111
=>
Network: 192.168.0.0/9 11000000.10101000.00000000.00000000
Broadcast: 192.255.255.255 11000000.10101111.11111111.11111111
HostMin: 192.168.0.1 11000000.10101000.00000000.00000001
HostMax: 192.255.255.254 11000000.10101111.11111111.11111110
Hosts/Net: 8388606
/8 -- 65536 Subnets -- 16777214 Hosts/Subnet
Address: 192.168.0.0 11000000.10101000.00000000.00000000
Netmask: 255.0.0.0 = 8 11111111.00000000.00000000.00000000
Wildcard: 0.255.255.255 00000000.11111111.11111111.11111111
=>
Network: 192.0.0.0/8 11000000.00000000.00000000.00000000
Broadcast: 192.255.255.255 11000000.11111111.11111111.11111111
HostMin: 192.0.0.1 11000000.00000000.00000000.00000001
HostMax: 192.255.255.254 11000000.11111111.11111111.11111110
Hosts/Net: 16777214
/7 -- 131072 Subnets -- 33554430 Hosts/Subnet
Address: 192.0.0.0 11000000.00000000.00000000.00000000
Netmask: 254.0.0.0 = 7 11111110.00000000.00000000.00000000
Wildcard: 1.255.255.255 00000001.11111111.11111111.11111111
=>
Network: 192.0.0.0/7 11000000.00000000.00000000.00000000
Broadcast: 193.255.255.255 11000001.11111111.11111111.11111111
HostMin: 192.0.0.1 11000000.00000000.00000000.00000001
HostMax: 193.255.255.254 11000001.11111111.11111111.11111110
Hosts/Net: 33554430
/6 -- 262144 Subnets -- 67108862 Hosts/Subnet
Address: 192.0.0.0 11000000.00000000.00000000.00000000
Netmask: 252.0.0.0 = 6 11111100.00000000.00000000.00000000
Wildcard: 3.255.255.255 00000011.11111111.11111111.11111111
=>
Network: 192.0.0.0/6 11000000.00000000.00000000.00000000
Broadcast: 195.255.255.255 11000011.11111111.11111111.11111111
HostMin: 192.0.0.1 11000000.00000000.00000000.00000001
HostMax: 195.255.255.254 11000011.11111111.11111111.11111110
Hosts/Net: 67108862
/5 -- 524288 Subnets -- 134217726 Hosts/Subnet
Address: 192.0.0.0 11000000.00000000.00000000.00000000
Netmask: 248.0.0.0 = 5 11111000.00000000.00000000.00000000
Wildcard: 7.255.255.255 00000111.11111111.11111111.11111111
=>
Network: 192.0.0.0/5 11000000.00000000.00000000.00000000
Broadcast: 199.255.255.255 11000111.11111111.11111111.11111111
HostMin: 192.0.0.1 11000000.00000000.00000000.00000001
HostMax: 199.255.255.254 11000111.11111111.11111111.11111110
Hosts/Net: 134217726
/4 -- 1048576 Subnets -- 268435454 Hosts/Subnet
Address: 192.0.0.0 11000000.00000000.00000000.00000000
Netmask: 240.0.0.0 = 4 11110000.00000000.00000000.00000000
Wildcard: 15.255.255.255 00001111.11111111.11111111.11111111
=>
Network: 192.0.0.0/4 11000000.00000000.00000000.00000000
Broadcast: 207.255.255.255 11001111.11111111.11111111.11111111
HostMin: 192.0.0.1 11000000.00000000.00000000.00000001
HostMax: 207.255.255.254 11001111.11111111.11111111.11111110
Hosts/Net: 268435454
/3 -- 2097152 Subnets -- 536870910 Hosts/Subnet
Address: 192.0.0.0 11000000.00000000.00000000.00000000
Netmask: 224.0.0.0 = 3 11100000.00000000.00000000.00000000
Wildcard: 31.255.255.255 00011111.11111111.11111111.11111111
=>
Network: 192.0.0.0/3 11000000.00000000.00000000.00000000
Broadcast: 223.255.255.255 11011111.11111111.11111111.11111111
HostMin: 192.0.0.1 11000000.00000000.00000000.00000001
HostMax: 223.255.255.254 11011111.11111111.11111111.11111110
Hosts/Net: 536870910
/2 -- 4194304 Subnets -- 1073741822 Hosts/Subnet
Address: 192.0.0.0 11000000.00000000.00000000.00000000
Netmask: 192.0.0.0 = 2 11000000.00000000.00000000.00000000
Wildcard: 63.255.255.255 00111111.11111111.11111111.11111111
=>
Network: 192.0.0.0/2 11000000.00000000.00000000.00000000
Broadcast: 255.255.255.255 11111111.11111111.11111111.11111111
HostMin: 192.0.0.1 11000000.00000000.00000000.00000001
HostMax: 255.255.255.254 11111111.11111111.11111111.11111110
Hosts/Net: 1073741822
/1 -- 8388608 Subnets -- 2147483646 Hosts/Subnet
Address: 128.0.0.0 10000000.00000000.00000000.00000000
Netmask: 128.0.0.0 = 1 10000000.00000000.00000000.00000000
Wildcard: 127.255.255.255 01111111.11111111.11111111.11111111
=>
Network: 128.0.0.0/1 10000000.00000000.00000000.00000000
Broadcast: 255.255.255.255 11111111.11111111.11111111.11111111
HostMin: 128.0.0.1 10000000.00000000.00000000.00000001
HostMax: 255.255.255.254 11111111.11111111.11111111.11111110
Hosts/Net: 2147483646
Bezoekerscounter
Totaal aantal bezoekers: 272