185.42.206.128/25

Public

Class B — /25 prefix — 126 usable hosts

Network Address
185.42.206.128
Broadcast Address
185.42.206.255
Subnet Mask
255.255.255.128
Usable Hosts
126
First Usable IP
185.42.206.129
Last Usable IP
185.42.206.254
Total IPs
128
Prefix Length
/25

Network address — the base address of the block (185.42.206.128). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 185.42.206.255 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 185.42.206.128/25
Network Address 185.42.206.128
Broadcast Address 185.42.206.255
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 185.42.206.129
Last Usable IP 185.42.206.254
Network (Hex) 0xB92ACE80
Broadcast (Hex) 0xB92ACEFF
Address Type Public / Globally Routable

Binary Representation

Network Address
10111001.00101010.11001110 10111001.00101010.11001110.10000000
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.

Subnet Breakdown — splitting into /26

This /25 block can be divided into 2 /26 subnets.

CIDR Network Broadcast First Usable Last Usable Hosts
185.42.206.128/26 185.42.206.128 185.42.206.191 185.42.206.129 185.42.206.190 62
185.42.206.192/26 185.42.206.192 185.42.206.255 185.42.206.193 185.42.206.254 62

IP Address Sample

Showing first 16 of 128 total IPs.

185.42.206.128 net
185.42.206.129
185.42.206.130
185.42.206.131
185.42.206.132
185.42.206.133
185.42.206.134
185.42.206.135
185.42.206.136
185.42.206.137
185.42.206.138
185.42.206.139
185.42.206.140
185.42.206.141
185.42.206.142
185.42.206.143
… 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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