124.0.143.64/27

Public

Class A — /27 prefix — 30 usable hosts

Network Address
124.0.143.64
Broadcast Address
124.0.143.95
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
124.0.143.65
Last Usable IP
124.0.143.94
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (124.0.143.64). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 124.0.143.95 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 mask255.255.255.224 is the dotted-decimal equivalent of /27. Older tools and Cisco configs use this format instead of CIDR slash notation.

Full Details

CIDR Notation 124.0.143.64/27
Network Address 124.0.143.64
Broadcast Address 124.0.143.95
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 124.0.143.65
Last Usable IP 124.0.143.94
Network (Hex) 0x7C008F40
Broadcast (Hex) 0x7C008F5F
Address Type Public / Globally Routable

Binary Representation

Network Address
01111100.00000000.10001111 01111100.00000000.10001111.01000000
Subnet Mask
11111111.11111111.11111111.11100000

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 124.0.143.64/27 into 2 equal /28 subnets (14 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 124.0.143.64/28 124.0.143.64 124.0.143.65 124.0.143.78 124.0.143.79 14
2 124.0.143.80/28 124.0.143.80 124.0.143.81 124.0.143.94 124.0.143.95 14

IP Address Sample

Showing first 16 of 32 total IPs.

124.0.143.64 net
124.0.143.65
124.0.143.66
124.0.143.67
124.0.143.68
124.0.143.69
124.0.143.70
124.0.143.71
124.0.143.72
124.0.143.73
124.0.143.74
124.0.143.75
124.0.143.76
124.0.143.77
124.0.143.78
124.0.143.79
… 16 more IPs …

/27 Subnet Reference

Total IPs 32
Usable Hosts 30
Subnet Mask 255.255.255.224
Wildcard 0.0.0.31

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