99.77.253.128/27

Public

Class A — /27 prefix — 30 usable hosts

Network Address
99.77.253.128
Broadcast Address
99.77.253.159
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
99.77.253.129
Last Usable IP
99.77.253.158
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (99.77.253.128). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 99.77.253.159 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 99.77.253.128/27
Network Address 99.77.253.128
Broadcast Address 99.77.253.159
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 99.77.253.129
Last Usable IP 99.77.253.158
Network (Hex) 0x634DFD80
Broadcast (Hex) 0x634DFD9F
Address Type Public / Globally Routable

Binary Representation

Network Address
01100011.01001101.11111101 01100011.01001101.11111101.10000000
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 99.77.253.128/27 into 2 equal /28 subnets (14 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 99.77.253.128/28 99.77.253.128 99.77.253.129 99.77.253.142 99.77.253.143 14
2 99.77.253.144/28 99.77.253.144 99.77.253.145 99.77.253.158 99.77.253.159 14

IP Address Sample

Showing first 16 of 32 total IPs.

99.77.253.128 net
99.77.253.129
99.77.253.130
99.77.253.131
99.77.253.132
99.77.253.133
99.77.253.134
99.77.253.135
99.77.253.136
99.77.253.137
99.77.253.138
99.77.253.139
99.77.253.140
99.77.253.141
99.77.253.142
99.77.253.143
… 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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