187.232.77.0/25

Public

Class B — /25 prefix — 126 usable hosts

Network Address
187.232.77.0
Broadcast Address
187.232.77.127
Subnet Mask
255.255.255.128
Usable Hosts
126
First Usable IP
187.232.77.1
Last Usable IP
187.232.77.126
Total IPs
128
Prefix Length
/25

Network address — the base address of the block (187.232.77.0). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 187.232.77.127 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 187.232.77.0/25
Network Address 187.232.77.0
Broadcast Address 187.232.77.127
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 187.232.77.1
Last Usable IP 187.232.77.126
Network (Hex) 0xBBE84D00
Broadcast (Hex) 0xBBE84D7F
Address Type Public / Globally Routable

Binary Representation

Network Address
10111011.11101000.01001101 10111011.11101000.01001101.00000000
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 187.232.77.0/25 into 2 equal /26 subnets (62 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 187.232.77.0/26 187.232.77.0 187.232.77.1 187.232.77.62 187.232.77.63 62
2 187.232.77.64/26 187.232.77.64 187.232.77.65 187.232.77.126 187.232.77.127 62

IP Address Sample

Showing first 16 of 128 total IPs.

187.232.77.0 net
187.232.77.1
187.232.77.2
187.232.77.3
187.232.77.4
187.232.77.5
187.232.77.6
187.232.77.7
187.232.77.8
187.232.77.9
187.232.77.10
187.232.77.11
187.232.77.12
187.232.77.13
187.232.77.14
187.232.77.15
… 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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