158.252.99.128/27

Public

Class B — /27 prefix — 30 usable hosts

Network Address
158.252.99.128
Broadcast Address
158.252.99.159
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
158.252.99.129
Last Usable IP
158.252.99.158
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (158.252.99.128). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 158.252.99.159 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 158.252.99.128/27
Network Address 158.252.99.128
Broadcast Address 158.252.99.159
Subnet Mask 255.255.255.224
Wildcard Mask 0.0.0.31
Prefix Length /27
IP Address Class Class B
Total IP Addresses 32
Usable Host Addresses 30
First Usable IP 158.252.99.129
Last Usable IP 158.252.99.158
Network (Hex) 0x9EFC6380
Broadcast (Hex) 0x9EFC639F
Address Type Public / Globally Routable

Binary Representation

Network Address
10011110.11111100.01100011 10011110.11111100.01100011.10000000
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 158.252.99.128/27 into 2 equal /28 subnets (14 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 158.252.99.128/28 158.252.99.128 158.252.99.129 158.252.99.142 158.252.99.143 14
2 158.252.99.144/28 158.252.99.144 158.252.99.145 158.252.99.158 158.252.99.159 14

IP Address Sample

Showing first 16 of 32 total IPs.

158.252.99.128 net
158.252.99.129
158.252.99.130
158.252.99.131
158.252.99.132
158.252.99.133
158.252.99.134
158.252.99.135
158.252.99.136
158.252.99.137
158.252.99.138
158.252.99.139
158.252.99.140
158.252.99.141
158.252.99.142
158.252.99.143
… 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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