192.168.1.180/30
Private (RFC 1918) RFC 1918Class C — /30 prefix — 2 usable hosts
Network Address
192.168.1.180
Broadcast Address
192.168.1.183
Subnet Mask
255.255.255.252
Usable Hosts
2
First Usable IP
192.168.1.181
Last Usable IP
192.168.1.182
Total IPs
4
Prefix Length
Network address — the base address of the block (192.168.1.180). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 192.168.1.183 are delivered to every device in the subnet. Also reserved — not assignable.
Usable hosts — the 2 addresses between those two that you can assign to servers, VMs, or interfaces.
Subnet mask — 255.255.255.252 is the dotted-decimal equivalent of /30. Older tools and Cisco configs use this format instead of CIDR slash notation.
Full Details
| CIDR Notation | 192.168.1.180/30 |
| Network Address | 192.168.1.180 |
| Broadcast Address | 192.168.1.183 |
| Subnet Mask | 255.255.255.252 |
| Wildcard Mask | 0.0.0.3 |
| Prefix Length | /30 |
| IP Address Class | Class C |
| Total IP Addresses | 4 |
| Usable Host Addresses | 2 |
| First Usable IP | 192.168.1.181 |
| Last Usable IP | 192.168.1.182 |
| Network (Hex) | 0xC0A801B4 |
| Broadcast (Hex) | 0xC0A801B7 |
| Governing RFC | RFC 1918 |
| Address Type | Private (RFC 1918) |
Binary Representation
Network Address
11000000.10101000.00000001
11000000.10101000.00000001.10110100
Subnet Mask
11111111.11111111.11111111.11111100
The first 30 bits (1s in the mask) identify the network. The remaining 2 bits identify hosts within the network.
All 4 IP Addresses in this Range
192.168.1.180
net
192.168.1.181
192.168.1.182
192.168.1.183
bcast
/30 Subnet Reference
Total IPs
4
Usable Hosts
2
Subnet Mask
255.255.255.252
Wildcard
0.0.0.3