10.19.101.0/24
Private (RFC 1918) RFC 1918Class A — /24 prefix — 254 usable hosts
Network address — the base address of the block (10.19.101.0). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 10.19.101.255 are delivered to every device in the subnet. Also reserved — not assignable.
Usable hosts — the 254 addresses between those two that you can assign to servers, VMs, or interfaces.
Subnet mask — 255.255.255.0 is the dotted-decimal equivalent of /24. Older tools and Cisco configs use this format instead of CIDR slash notation.
Full Details
| CIDR Notation | 10.19.101.0/24 |
| Network Address | 10.19.101.0 |
| Broadcast Address | 10.19.101.255 |
| Subnet Mask | 255.255.255.0 |
| Wildcard Mask | 0.0.0.255 |
| Prefix Length | /24 |
| IP Address Class | Class A |
| Total IP Addresses | 256 |
| Usable Host Addresses | 254 |
| First Usable IP | 10.19.101.1 |
| Last Usable IP | 10.19.101.254 |
| Network (Hex) | 0x0A136500 |
| Broadcast (Hex) | 0x0A1365FF |
| Governing RFC | RFC 1918 |
| Address Type | Private (RFC 1918) |
Binary Representation
The first 24 bits (1s in the mask) identify the network. The remaining 8 bits identify hosts within the network.
Split into Equal Subnets
Split 10.19.101.0/24 into 2 equal /25 subnets (126 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 10.19.101.0/25 | 10.19.101.0 | 10.19.101.1 | 10.19.101.126 | 10.19.101.127 | 126 |
| 2 | 10.19.101.128/25 | 10.19.101.128 | 10.19.101.129 | 10.19.101.254 | 10.19.101.255 | 126 |
Split 10.19.101.0/24 into 4 equal /26 subnets (62 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 10.19.101.0/26 | 10.19.101.0 | 10.19.101.1 | 10.19.101.62 | 10.19.101.63 | 62 |
| 2 | 10.19.101.64/26 | 10.19.101.64 | 10.19.101.65 | 10.19.101.126 | 10.19.101.127 | 62 |
| 3 | 10.19.101.128/26 | 10.19.101.128 | 10.19.101.129 | 10.19.101.190 | 10.19.101.191 | 62 |
| 4 | 10.19.101.192/26 | 10.19.101.192 | 10.19.101.193 | 10.19.101.254 | 10.19.101.255 | 62 |
Split 10.19.101.0/24 into 8 equal /27 subnets (30 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 10.19.101.0/27 | 10.19.101.0 | 10.19.101.1 | 10.19.101.30 | 10.19.101.31 | 30 |
| 2 | 10.19.101.32/27 | 10.19.101.32 | 10.19.101.33 | 10.19.101.62 | 10.19.101.63 | 30 |
| 3 | 10.19.101.64/27 | 10.19.101.64 | 10.19.101.65 | 10.19.101.94 | 10.19.101.95 | 30 |
| 4 | 10.19.101.96/27 | 10.19.101.96 | 10.19.101.97 | 10.19.101.126 | 10.19.101.127 | 30 |
| 5 | 10.19.101.128/27 | 10.19.101.128 | 10.19.101.129 | 10.19.101.158 | 10.19.101.159 | 30 |
| 6 | 10.19.101.160/27 | 10.19.101.160 | 10.19.101.161 | 10.19.101.190 | 10.19.101.191 | 30 |
| 7 | 10.19.101.192/27 | 10.19.101.192 | 10.19.101.193 | 10.19.101.222 | 10.19.101.223 | 30 |
| 8 | 10.19.101.224/27 | 10.19.101.224 | 10.19.101.225 | 10.19.101.254 | 10.19.101.255 | 30 |
Split 10.19.101.0/24 into 16 equal /28 subnets (14 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 10.19.101.0/28 | 10.19.101.0 | 10.19.101.1 | 10.19.101.14 | 10.19.101.15 | 14 |
| 2 | 10.19.101.16/28 | 10.19.101.16 | 10.19.101.17 | 10.19.101.30 | 10.19.101.31 | 14 |
| 3 | 10.19.101.32/28 | 10.19.101.32 | 10.19.101.33 | 10.19.101.46 | 10.19.101.47 | 14 |
| 4 | 10.19.101.48/28 | 10.19.101.48 | 10.19.101.49 | 10.19.101.62 | 10.19.101.63 | 14 |
| 5 | 10.19.101.64/28 | 10.19.101.64 | 10.19.101.65 | 10.19.101.78 | 10.19.101.79 | 14 |
| 6 | 10.19.101.80/28 | 10.19.101.80 | 10.19.101.81 | 10.19.101.94 | 10.19.101.95 | 14 |
| 7 | 10.19.101.96/28 | 10.19.101.96 | 10.19.101.97 | 10.19.101.110 | 10.19.101.111 | 14 |
| 8 | 10.19.101.112/28 | 10.19.101.112 | 10.19.101.113 | 10.19.101.126 | 10.19.101.127 | 14 |
| 9 | 10.19.101.128/28 | 10.19.101.128 | 10.19.101.129 | 10.19.101.142 | 10.19.101.143 | 14 |
| 10 | 10.19.101.144/28 | 10.19.101.144 | 10.19.101.145 | 10.19.101.158 | 10.19.101.159 | 14 |
| 11 | 10.19.101.160/28 | 10.19.101.160 | 10.19.101.161 | 10.19.101.174 | 10.19.101.175 | 14 |
| 12 | 10.19.101.176/28 | 10.19.101.176 | 10.19.101.177 | 10.19.101.190 | 10.19.101.191 | 14 |
| 13 | 10.19.101.192/28 | 10.19.101.192 | 10.19.101.193 | 10.19.101.206 | 10.19.101.207 | 14 |
| 14 | 10.19.101.208/28 | 10.19.101.208 | 10.19.101.209 | 10.19.101.222 | 10.19.101.223 | 14 |
| 15 | 10.19.101.224/28 | 10.19.101.224 | 10.19.101.225 | 10.19.101.238 | 10.19.101.239 | 14 |
| 16 | 10.19.101.240/28 | 10.19.101.240 | 10.19.101.241 | 10.19.101.254 | 10.19.101.255 | 14 |
IP Address Sample
Showing first 16 of 256 total IPs.