rendered paste body$ ipcalc 128.235.0.0/16 -s 5000 5000
Address: 128.235.0.0 10000000.11101011. 00000000.00000000
Netmask: 255.255.0.0 = 16 11111111.11111111. 00000000.00000000
Wildcard: 0.0.255.255 00000000.00000000. 11111111.11111111
=>
Network: 128.235.0.0/16 10000000.11101011. 00000000.00000000
HostMin: 128.235.0.1 10000000.11101011. 00000000.00000001
HostMax: 128.235.255.254 10000000.11101011. 11111111.11111110
Broadcast: 128.235.255.255 10000000.11101011. 11111111.11111111
Hosts/Net: 65534 Class B
1. Requested size: 5000 hosts
Netmask: 255.255.224.0 = 19 11111111.11111111.111 00000.00000000
Network: 128.235.0.0/19 10000000.11101011.000 00000.00000000
HostMin: 128.235.0.1 10000000.11101011.000 00000.00000001
HostMax: 128.235.31.254 10000000.11101011.000 11111.11111110
Broadcast: 128.235.31.255 10000000.11101011.000 11111.11111111
Hosts/Net: 8190 Class B
2. Requested size: 5000 hosts
Netmask: 255.255.224.0 = 19 11111111.11111111.111 00000.00000000
Network: 128.235.32.0/19 10000000.11101011.001 00000.00000000
HostMin: 128.235.32.1 10000000.11101011.001 00000.00000001
HostMax: 128.235.63.254 10000000.11101011.001 11111.11111110
Broadcast: 128.235.63.255 10000000.11101011.001 11111.11111111
Hosts/Net: 8190 Class B
Needed size: 16384 addresses.
Used network: 128.235.0.0/18
Unused:
128.235.64.0/18
128.235.128.0/17