3.161.68.64/27

Public

Class A — /27 prefix — 30 usable hosts

Network Address
3.161.68.64
Broadcast Address
3.161.68.95
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
3.161.68.65
Last Usable IP
3.161.68.94
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (3.161.68.64). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 3.161.68.95 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 3.161.68.64/27
Network Address 3.161.68.64
Broadcast Address 3.161.68.95
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 3.161.68.65
Last Usable IP 3.161.68.94
Network (Hex) 0x03A14440
Broadcast (Hex) 0x03A1445F
Address Type Public / Globally Routable

Binary Representation

Network Address
00000011.10100001.01000100 00000011.10100001.01000100.01000000
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 3.161.68.64/27 into 2 equal /28 subnets (14 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 3.161.68.64/28 3.161.68.64 3.161.68.65 3.161.68.78 3.161.68.79 14
2 3.161.68.80/28 3.161.68.80 3.161.68.81 3.161.68.94 3.161.68.95 14

IP Address Sample

Showing first 16 of 32 total IPs.

3.161.68.64 net
3.161.68.65
3.161.68.66
3.161.68.67
3.161.68.68
3.161.68.69
3.161.68.70
3.161.68.71
3.161.68.72
3.161.68.73
3.161.68.74
3.161.68.75
3.161.68.76
3.161.68.77
3.161.68.78
3.161.68.79
… 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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