159.154.80.0/27

Public

Class B — /27 prefix — 30 usable hosts

Network Address
159.154.80.0
Broadcast Address
159.154.80.31
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
159.154.80.1
Last Usable IP
159.154.80.30
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (159.154.80.0). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 159.154.80.31 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 159.154.80.0/27
Network Address 159.154.80.0
Broadcast Address 159.154.80.31
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 159.154.80.1
Last Usable IP 159.154.80.30
Network (Hex) 0x9F9A5000
Broadcast (Hex) 0x9F9A501F
Address Type Public / Globally Routable

Binary Representation

Network Address
10011111.10011010.01010000 10011111.10011010.01010000.00000000
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 159.154.80.0/27 into 2 equal /28 subnets (14 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 159.154.80.0/28 159.154.80.0 159.154.80.1 159.154.80.14 159.154.80.15 14
2 159.154.80.16/28 159.154.80.16 159.154.80.17 159.154.80.30 159.154.80.31 14

IP Address Sample

Showing first 16 of 32 total IPs.

159.154.80.0 net
159.154.80.1
159.154.80.2
159.154.80.3
159.154.80.4
159.154.80.5
159.154.80.6
159.154.80.7
159.154.80.8
159.154.80.9
159.154.80.10
159.154.80.11
159.154.80.12
159.154.80.13
159.154.80.14
159.154.80.15
… 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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