156.5.19.0/27

Public

Class B — /27 prefix — 30 usable hosts

Network Address
156.5.19.0
Broadcast Address
156.5.19.31
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
156.5.19.1
Last Usable IP
156.5.19.30
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (156.5.19.0). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 156.5.19.31 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 156.5.19.0/27
Network Address 156.5.19.0
Broadcast Address 156.5.19.31
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 156.5.19.1
Last Usable IP 156.5.19.30
Network (Hex) 0x9C051300
Broadcast (Hex) 0x9C05131F
Address Type Public / Globally Routable

Binary Representation

Network Address
10011100.00000101.00010011 10011100.00000101.00010011.00000000
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 156.5.19.0/27 into 2 equal /28 subnets (14 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 156.5.19.0/28 156.5.19.0 156.5.19.1 156.5.19.14 156.5.19.15 14
2 156.5.19.16/28 156.5.19.16 156.5.19.17 156.5.19.30 156.5.19.31 14

IP Address Sample

Showing first 16 of 32 total IPs.

156.5.19.0 net
156.5.19.1
156.5.19.2
156.5.19.3
156.5.19.4
156.5.19.5
156.5.19.6
156.5.19.7
156.5.19.8
156.5.19.9
156.5.19.10
156.5.19.11
156.5.19.12
156.5.19.13
156.5.19.14
156.5.19.15
… 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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