204.15.36.0/25

Public

Class C — /25 prefix — 126 usable hosts

Network Address
204.15.36.0
Broadcast Address
204.15.36.127
Subnet Mask
255.255.255.128
Usable Hosts
126
First Usable IP
204.15.36.1
Last Usable IP
204.15.36.126
Total IPs
128
Prefix Length
/25

Network address — the base address of the block (204.15.36.0). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 204.15.36.127 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 204.15.36.0/25
Network Address 204.15.36.0
Broadcast Address 204.15.36.127
Subnet Mask 255.255.255.128
Wildcard Mask 0.0.0.127
Prefix Length /25
IP Address Class Class C
Total IP Addresses 128
Usable Host Addresses 126
First Usable IP 204.15.36.1
Last Usable IP 204.15.36.126
Network (Hex) 0xCC0F2400
Broadcast (Hex) 0xCC0F247F
Address Type Public / Globally Routable

Binary Representation

Network Address
11001100.00001111.00100100 11001100.00001111.00100100.00000000
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 204.15.36.0/25 into 2 equal /26 subnets (62 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 204.15.36.0/26 204.15.36.0 204.15.36.1 204.15.36.62 204.15.36.63 62
2 204.15.36.64/26 204.15.36.64 204.15.36.65 204.15.36.126 204.15.36.127 62

IP Address Sample

Showing first 16 of 128 total IPs.

204.15.36.0 net
204.15.36.1
204.15.36.2
204.15.36.3
204.15.36.4
204.15.36.5
204.15.36.6
204.15.36.7
204.15.36.8
204.15.36.9
204.15.36.10
204.15.36.11
204.15.36.12
204.15.36.13
204.15.36.14
204.15.36.15
… 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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