21.252.178.96/27
PublicClass A — /27 prefix — 30 usable hosts
Network address — the base address of the block (21.252.178.96). All devices in this subnet share this prefix. Cannot be assigned to a host.
Broadcast address — packets sent to 21.252.178.127 are delivered to every device in the subnet. Also reserved — not assignable.
Usable hosts — the 30 addresses between those two that you can assign to servers, VMs, or interfaces.
Subnet mask — 255.255.255.224 is the dotted-decimal equivalent of /27. Older tools and Cisco configs use this format instead of CIDR slash notation.
Full Details
| CIDR Notation | 21.252.178.96/27 |
| Network Address | 21.252.178.96 |
| Broadcast Address | 21.252.178.127 |
| Subnet Mask | 255.255.255.224 |
| Wildcard Mask | 0.0.0.31 |
| Prefix Length | /27 |
| IP Address Class | Class A |
| Total IP Addresses | 32 |
| Usable Host Addresses | 30 |
| First Usable IP | 21.252.178.97 |
| Last Usable IP | 21.252.178.126 |
| Network (Hex) | 0x15FCB260 |
| Broadcast (Hex) | 0x15FCB27F |
| Address Type | Public / Globally Routable |
Binary Representation
The first 27 bits (1s in the mask) identify the network. The remaining 5 bits identify hosts within the network.
Split into Equal Subnets
Split 21.252.178.96/27 into 2 equal /28 subnets (14 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 21.252.178.96/28 | 21.252.178.96 | 21.252.178.97 | 21.252.178.110 | 21.252.178.111 | 14 |
| 2 | 21.252.178.112/28 | 21.252.178.112 | 21.252.178.113 | 21.252.178.126 | 21.252.178.127 | 14 |
Split 21.252.178.96/27 into 4 equal /29 subnets (6 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 21.252.178.96/29 | 21.252.178.96 | 21.252.178.97 | 21.252.178.102 | 21.252.178.103 | 6 |
| 2 | 21.252.178.104/29 | 21.252.178.104 | 21.252.178.105 | 21.252.178.110 | 21.252.178.111 | 6 |
| 3 | 21.252.178.112/29 | 21.252.178.112 | 21.252.178.113 | 21.252.178.118 | 21.252.178.119 | 6 |
| 4 | 21.252.178.120/29 | 21.252.178.120 | 21.252.178.121 | 21.252.178.126 | 21.252.178.127 | 6 |
Split 21.252.178.96/27 into 8 equal /30 subnets (2 usable hosts each).
| # | CIDR | Network | First Usable | Last Usable | Broadcast | Hosts |
|---|---|---|---|---|---|---|
| 1 | 21.252.178.96/30 | 21.252.178.96 | 21.252.178.97 | 21.252.178.98 | 21.252.178.99 | 2 |
| 2 | 21.252.178.100/30 | 21.252.178.100 | 21.252.178.101 | 21.252.178.102 | 21.252.178.103 | 2 |
| 3 | 21.252.178.104/30 | 21.252.178.104 | 21.252.178.105 | 21.252.178.106 | 21.252.178.107 | 2 |
| 4 | 21.252.178.108/30 | 21.252.178.108 | 21.252.178.109 | 21.252.178.110 | 21.252.178.111 | 2 |
| 5 | 21.252.178.112/30 | 21.252.178.112 | 21.252.178.113 | 21.252.178.114 | 21.252.178.115 | 2 |
| 6 | 21.252.178.116/30 | 21.252.178.116 | 21.252.178.117 | 21.252.178.118 | 21.252.178.119 | 2 |
| 7 | 21.252.178.120/30 | 21.252.178.120 | 21.252.178.121 | 21.252.178.122 | 21.252.178.123 | 2 |
| 8 | 21.252.178.124/30 | 21.252.178.124 | 21.252.178.125 | 21.252.178.126 | 21.252.178.127 | 2 |
IP Address Sample
Showing first 16 of 32 total IPs.