162.125.3.0/25

Public

Class B — /25 prefix — 126 usable hosts

Network Address
162.125.3.0
Broadcast Address
162.125.3.127
Subnet Mask
255.255.255.128
Usable Hosts
126
First Usable IP
162.125.3.1
Last Usable IP
162.125.3.126
Total IPs
128
Prefix Length
/25

Network address — the base address of the block (162.125.3.0). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 162.125.3.127 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 162.125.3.0/25
Network Address 162.125.3.0
Broadcast Address 162.125.3.127
Subnet Mask 255.255.255.128
Wildcard Mask 0.0.0.127
Prefix Length /25
IP Address Class Class B
Total IP Addresses 128
Usable Host Addresses 126
First Usable IP 162.125.3.1
Last Usable IP 162.125.3.126
Network (Hex) 0xA27D0300
Broadcast (Hex) 0xA27D037F
Address Type Public / Globally Routable

Binary Representation

Network Address
10100010.01111101.00000011 10100010.01111101.00000011.00000000
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 162.125.3.0/25 into 2 equal /26 subnets (62 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 162.125.3.0/26 162.125.3.0 162.125.3.1 162.125.3.62 162.125.3.63 62
2 162.125.3.64/26 162.125.3.64 162.125.3.65 162.125.3.126 162.125.3.127 62

IP Address Sample

Showing first 16 of 128 total IPs.

162.125.3.0 net
162.125.3.1
162.125.3.2
162.125.3.3
162.125.3.4
162.125.3.5
162.125.3.6
162.125.3.7
162.125.3.8
162.125.3.9
162.125.3.10
162.125.3.11
162.125.3.12
162.125.3.13
162.125.3.14
162.125.3.15
… 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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