20.54.176.0/25

Public

Class A — /25 prefix — 126 usable hosts

Network Address
20.54.176.0
Broadcast Address
20.54.176.127
Subnet Mask
255.255.255.128
Usable Hosts
126
First Usable IP
20.54.176.1
Last Usable IP
20.54.176.126
Total IPs
128
Prefix Length
/25

Network address — the base address of the block (20.54.176.0). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 20.54.176.127 are delivered to every device in the subnet. Also reserved — not assignable.

Usable hosts — the 126 addresses between those two that you can assign to servers, VMs, or interfaces.

Subnet mask255.255.255.128 is the dotted-decimal equivalent of /25. Older tools and Cisco configs use this format instead of CIDR slash notation.

Full Details

CIDR Notation 20.54.176.0/25
Network Address 20.54.176.0
Broadcast Address 20.54.176.127
Subnet Mask 255.255.255.128
Wildcard Mask 0.0.0.127
Prefix Length /25
IP Address Class Class A
Total IP Addresses 128
Usable Host Addresses 126
First Usable IP 20.54.176.1
Last Usable IP 20.54.176.126
Network (Hex) 0x1436B000
Broadcast (Hex) 0x1436B07F
Address Type Public / Globally Routable

Binary Representation

Network Address
00010100.00110110.10110000 00010100.00110110.10110000.00000000
Subnet Mask
11111111.11111111.11111111.10000000

The first 25 bits (1s in the mask) identify the network. The remaining 7 bits identify hosts within the network.

Split into Equal Subnets

Split 20.54.176.0/25 into 2 equal /26 subnets (62 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 20.54.176.0/26 20.54.176.0 20.54.176.1 20.54.176.62 20.54.176.63 62
2 20.54.176.64/26 20.54.176.64 20.54.176.65 20.54.176.126 20.54.176.127 62

IP Address Sample

Showing first 16 of 128 total IPs.

20.54.176.0 net
20.54.176.1
20.54.176.2
20.54.176.3
20.54.176.4
20.54.176.5
20.54.176.6
20.54.176.7
20.54.176.8
20.54.176.9
20.54.176.10
20.54.176.11
20.54.176.12
20.54.176.13
20.54.176.14
20.54.176.15
… 112 more IPs …

/25 Subnet Reference

Total IPs 128
Usable Hosts 126
Subnet Mask 255.255.255.128
Wildcard 0.0.0.127

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