65.3.177.64/27

Public

Class A — /27 prefix — 30 usable hosts

Network Address
65.3.177.64
Broadcast Address
65.3.177.95
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
65.3.177.65
Last Usable IP
65.3.177.94
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (65.3.177.64). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 65.3.177.95 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 65.3.177.64/27
Network Address 65.3.177.64
Broadcast Address 65.3.177.95
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 65.3.177.65
Last Usable IP 65.3.177.94
Network (Hex) 0x4103B140
Broadcast (Hex) 0x4103B15F
Address Type Public / Globally Routable

Binary Representation

Network Address
01000001.00000011.10110001 01000001.00000011.10110001.01000000
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 65.3.177.64/27 into 2 equal /28 subnets (14 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 65.3.177.64/28 65.3.177.64 65.3.177.65 65.3.177.78 65.3.177.79 14
2 65.3.177.80/28 65.3.177.80 65.3.177.81 65.3.177.94 65.3.177.95 14

IP Address Sample

Showing first 16 of 32 total IPs.

65.3.177.64 net
65.3.177.65
65.3.177.66
65.3.177.67
65.3.177.68
65.3.177.69
65.3.177.70
65.3.177.71
65.3.177.72
65.3.177.73
65.3.177.74
65.3.177.75
65.3.177.76
65.3.177.77
65.3.177.78
65.3.177.79
… 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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