111.13.171.220/30
PublicClass A — /30 prefix — 2 usable hosts
Network Address
111.13.171.220
Broadcast Address
111.13.171.223
Subnet Mask
255.255.255.252
Usable Hosts
2
First Usable IP
111.13.171.221
Last Usable IP
111.13.171.222
Total IPs
4
Prefix Length
Network address — the base address of the block (111.13.171.220). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 111.13.171.223 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 | 111.13.171.220/30 |
| Network Address | 111.13.171.220 |
| Broadcast Address | 111.13.171.223 |
| Subnet Mask | 255.255.255.252 |
| Wildcard Mask | 0.0.0.3 |
| Prefix Length | /30 |
| IP Address Class | Class A |
| Total IP Addresses | 4 |
| Usable Host Addresses | 2 |
| First Usable IP | 111.13.171.221 |
| Last Usable IP | 111.13.171.222 |
| Network (Hex) | 0x6F0DABDC |
| Broadcast (Hex) | 0x6F0DABDF |
| Address Type | Public / Globally Routable |
Binary Representation
Network Address
01101111.00001101.10101011
01101111.00001101.10101011.11011100
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
111.13.171.220
net
111.13.171.221
111.13.171.222
111.13.171.223
bcast
/30 Subnet Reference
Total IPs
4
Usable Hosts
2
Subnet Mask
255.255.255.252
Wildcard
0.0.0.3