28.63.35.64/27

Public

Class A — /27 prefix — 30 usable hosts

Network Address
28.63.35.64
Broadcast Address
28.63.35.95
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
28.63.35.65
Last Usable IP
28.63.35.94
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (28.63.35.64). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 28.63.35.95 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 28.63.35.64/27
Network Address 28.63.35.64
Broadcast Address 28.63.35.95
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 28.63.35.65
Last Usable IP 28.63.35.94
Network (Hex) 0x1C3F2340
Broadcast (Hex) 0x1C3F235F
Address Type Public / Globally Routable

Binary Representation

Network Address
00011100.00111111.00100011 00011100.00111111.00100011.01000000
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 28.63.35.64/27 into 2 equal /28 subnets (14 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 28.63.35.64/28 28.63.35.64 28.63.35.65 28.63.35.78 28.63.35.79 14
2 28.63.35.80/28 28.63.35.80 28.63.35.81 28.63.35.94 28.63.35.95 14

IP Address Sample

Showing first 16 of 32 total IPs.

28.63.35.64 net
28.63.35.65
28.63.35.66
28.63.35.67
28.63.35.68
28.63.35.69
28.63.35.70
28.63.35.71
28.63.35.72
28.63.35.73
28.63.35.74
28.63.35.75
28.63.35.76
28.63.35.77
28.63.35.78
28.63.35.79
… 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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