Find the network, mask, broadcast address and host range.
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HOW IT WORKS
Enter an IPv4 address and a CIDR prefix, such as /24, or a dotted-decimal subnet mask, such as 255.255.255.0.
FREQUENTLY ASKED QUESTIONS
The theoretical host count excludes the network and broadcast addresses, except for /31 point-to-point links with two addresses and /32 host routes with one address. Reserved address ranges are not subtracted. Calculations run locally on your device; no network scans are performed.
RESULT GUIDE
Enter an IPv4 address and a CIDR prefix, such as /24, or a dotted-decimal subnet mask, such as 255.255.255.0.
IPv4 AND netmask → CIDRThe theoretical host count excludes the network and broadcast addresses, except for /31 point-to-point links with two addresses and /32 host routes with one address. Reserved address ranges are not subtracted. Calculations run locally on your device; no network scans are performed.
The theoretical host count excludes the network and broadcast addresses, except for /31 point-to-point links with two addresses and /32 host routes with one address. Reserved address ranges are not subtracted. Calculations run locally on your device; no network scans are performed.
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Who’s behind CalcuPopComputing and networks
Enter an IPv4 address and a CIDR prefix, such as /24, or a dotted-decimal subnet mask, such as 255.255.255.0.
192.168.1.130 · 255.255.255.0
| Subnet mask | 255.255.255.0 |
|---|---|
| CIDR prefix | /24 |
| Wildcard mask | 0.0.0.255 |
| Broadcast address | 192.168.1.255 |
| First host address | 192.168.1.1 |
| Last host address | 192.168.1.254 |
| Total addresses | 256 |
| Theoretically usable host addresses | 254 |
| IPv4 | Binary (32 bits) |
|---|---|
| IPv4 address192.168.1.130 | 11000000.10101000.00000001.10000010 |
| Subnet mask255.255.255.0 | 11111111.11111111.11111111.00000000 |
| Wildcard mask0.0.0.255 | 00000000.00000000.00000000.11111111 |
| Network address192.168.1.0 | 11000000.10101000.00000001.00000000 |
| Broadcast address192.168.1.255 | 11000000.10101000.00000001.11111111 |
| First host address192.168.1.1 | 11000000.10101000.00000001.00000001 |
| Last host address192.168.1.254 | 11000000.10101000.00000001.11111110 |
The theoretical host count excludes the network and broadcast addresses, except for /31 point-to-point links with two addresses and /32 host routes with one address. Reserved address ranges are not subtracted. Calculations run locally on your device; no network scans are performed.
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