158.252.128.0/27

Public

Class B — /27 prefix — 30 usable hosts

Network Address
158.252.128.0
Broadcast Address
158.252.128.31
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
158.252.128.1
Last Usable IP
158.252.128.30
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (158.252.128.0). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 158.252.128.31 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 158.252.128.0/27
Network Address 158.252.128.0
Broadcast Address 158.252.128.31
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 158.252.128.1
Last Usable IP 158.252.128.30
Network (Hex) 0x9EFC8000
Broadcast (Hex) 0x9EFC801F
Address Type Public / Globally Routable

Binary Representation

Network Address
10011110.11111100.10000000 10011110.11111100.10000000.00000000
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 158.252.128.0/27 into 2 equal /28 subnets (14 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 158.252.128.0/28 158.252.128.0 158.252.128.1 158.252.128.14 158.252.128.15 14
2 158.252.128.16/28 158.252.128.16 158.252.128.17 158.252.128.30 158.252.128.31 14

IP Address Sample

Showing first 16 of 32 total IPs.

158.252.128.0 net
158.252.128.1
158.252.128.2
158.252.128.3
158.252.128.4
158.252.128.5
158.252.128.6
158.252.128.7
158.252.128.8
158.252.128.9
158.252.128.10
158.252.128.11
158.252.128.12
158.252.128.13
158.252.128.14
158.252.128.15
… 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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