3.45.224.64/27

Public

Class A — /27 prefix — 30 usable hosts

Network Address
3.45.224.64
Broadcast Address
3.45.224.95
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
3.45.224.65
Last Usable IP
3.45.224.94
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (3.45.224.64). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 3.45.224.95 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 3.45.224.64/27
Network Address 3.45.224.64
Broadcast Address 3.45.224.95
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 3.45.224.65
Last Usable IP 3.45.224.94
Network (Hex) 0x032DE040
Broadcast (Hex) 0x032DE05F
Address Type Public / Globally Routable

Binary Representation

Network Address
00000011.00101101.11100000 00000011.00101101.11100000.01000000
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 3.45.224.64/27 into 2 equal /28 subnets (14 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 3.45.224.64/28 3.45.224.64 3.45.224.65 3.45.224.78 3.45.224.79 14
2 3.45.224.80/28 3.45.224.80 3.45.224.81 3.45.224.94 3.45.224.95 14

IP Address Sample

Showing first 16 of 32 total IPs.

3.45.224.64 net
3.45.224.65
3.45.224.66
3.45.224.67
3.45.224.68
3.45.224.69
3.45.224.70
3.45.224.71
3.45.224.72
3.45.224.73
3.45.224.74
3.45.224.75
3.45.224.76
3.45.224.77
3.45.224.78
3.45.224.79
… 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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