202.10.231.0/25

Public

Class C — /25 prefix — 126 usable hosts

Network Address
202.10.231.0
Broadcast Address
202.10.231.127
Subnet Mask
255.255.255.128
Usable Hosts
126
First Usable IP
202.10.231.1
Last Usable IP
202.10.231.126
Total IPs
128
Prefix Length
/25

Network address — the base address of the block (202.10.231.0). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 202.10.231.127 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 202.10.231.0/25
Network Address 202.10.231.0
Broadcast Address 202.10.231.127
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 202.10.231.1
Last Usable IP 202.10.231.126
Network (Hex) 0xCA0AE700
Broadcast (Hex) 0xCA0AE77F
Address Type Public / Globally Routable

Binary Representation

Network Address
11001010.00001010.11100111 11001010.00001010.11100111.00000000
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 202.10.231.0/25 into 2 equal /26 subnets (62 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 202.10.231.0/26 202.10.231.0 202.10.231.1 202.10.231.62 202.10.231.63 62
2 202.10.231.64/26 202.10.231.64 202.10.231.65 202.10.231.126 202.10.231.127 62

IP Address Sample

Showing first 16 of 128 total IPs.

202.10.231.0 net
202.10.231.1
202.10.231.2
202.10.231.3
202.10.231.4
202.10.231.5
202.10.231.6
202.10.231.7
202.10.231.8
202.10.231.9
202.10.231.10
202.10.231.11
202.10.231.12
202.10.231.13
202.10.231.14
202.10.231.15
… 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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