151.148.16.8/31
PublicClass B — /31 prefix — 2 usable hosts
Network Address
151.148.16.8
Broadcast Address
151.148.16.9
Subnet Mask
255.255.255.254
Usable Hosts
2
First Usable IP
151.148.16.8
Last Usable IP
151.148.16.9
Total IPs
2
Prefix Length
Network address — the base address of the block (151.148.16.8). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 151.148.16.9 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 — 255.255.255.254 is the dotted-decimal equivalent of /31. Older tools and Cisco configs use this format instead of CIDR slash notation.
Full Details
| CIDR Notation | 151.148.16.8/31 |
| Network Address | 151.148.16.8 |
| Broadcast Address | 151.148.16.9 |
| Subnet Mask | 255.255.255.254 |
| Wildcard Mask | 0.0.0.1 |
| Prefix Length | /31 |
| IP Address Class | Class B |
| Total IP Addresses | 2 |
| Usable Host Addresses | 2 |
| First Usable IP | 151.148.16.8 |
| Last Usable IP | 151.148.16.9 |
| Network (Hex) | 0x97941008 |
| Broadcast (Hex) | 0x97941009 |
| Address Type | Public / Globally Routable |
Binary Representation
Network Address
10010111.10010100.00010000
10010111.10010100.00010000.00001000
Subnet Mask
11111111.11111111.11111111.11111110
The first 31 bits (1s in the mask) identify the network. The remaining 1 bits identify hosts within the network.
All 2 IP Addresses in this Range
151.148.16.8
net
151.148.16.9
bcast
/31 Subnet Reference
Total IPs
2
Usable Hosts
2
Subnet Mask
255.255.255.254
Wildcard
0.0.0.1