8.231.64.64/27

Public

Class A — /27 prefix — 30 usable hosts

Network Address
8.231.64.64
Broadcast Address
8.231.64.95
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
8.231.64.65
Last Usable IP
8.231.64.94
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (8.231.64.64). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 8.231.64.95 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 8.231.64.64/27
Network Address 8.231.64.64
Broadcast Address 8.231.64.95
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 8.231.64.65
Last Usable IP 8.231.64.94
Network (Hex) 0x08E74040
Broadcast (Hex) 0x08E7405F
Address Type Public / Globally Routable

Binary Representation

Network Address
00001000.11100111.01000000 00001000.11100111.01000000.01000000
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 8.231.64.64/27 into 2 equal /28 subnets (14 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 8.231.64.64/28 8.231.64.64 8.231.64.65 8.231.64.78 8.231.64.79 14
2 8.231.64.80/28 8.231.64.80 8.231.64.81 8.231.64.94 8.231.64.95 14

IP Address Sample

Showing first 16 of 32 total IPs.

8.231.64.64 net
8.231.64.65
8.231.64.66
8.231.64.67
8.231.64.68
8.231.64.69
8.231.64.70
8.231.64.71
8.231.64.72
8.231.64.73
8.231.64.74
8.231.64.75
8.231.64.76
8.231.64.77
8.231.64.78
8.231.64.79
… 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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