20.47.23.32/27

Public

Class A — /27 prefix — 30 usable hosts

Network Address
20.47.23.32
Broadcast Address
20.47.23.63
Subnet Mask
255.255.255.224
Usable Hosts
30
First Usable IP
20.47.23.33
Last Usable IP
20.47.23.62
Total IPs
32
Prefix Length
/27

Network address — the base address of the block (20.47.23.32). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 20.47.23.63 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 20.47.23.32/27
Network Address 20.47.23.32
Broadcast Address 20.47.23.63
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 20.47.23.33
Last Usable IP 20.47.23.62
Network (Hex) 0x142F1720
Broadcast (Hex) 0x142F173F
Address Type Public / Globally Routable

Binary Representation

Network Address
00010100.00101111.00010111 00010100.00101111.00010111.00100000
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 20.47.23.32/27 into 2 equal /28 subnets (14 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 20.47.23.32/28 20.47.23.32 20.47.23.33 20.47.23.46 20.47.23.47 14
2 20.47.23.48/28 20.47.23.48 20.47.23.49 20.47.23.62 20.47.23.63 14

IP Address Sample

Showing first 16 of 32 total IPs.

20.47.23.32 net
20.47.23.33
20.47.23.34
20.47.23.35
20.47.23.36
20.47.23.37
20.47.23.38
20.47.23.39
20.47.23.40
20.47.23.41
20.47.23.42
20.47.23.43
20.47.23.44
20.47.23.45
20.47.23.46
20.47.23.47
… 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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