40.65.252.128/25

Public

Class A — /25 prefix — 126 usable hosts

Network Address
40.65.252.128
Broadcast Address
40.65.252.255
Subnet Mask
255.255.255.128
Usable Hosts
126
First Usable IP
40.65.252.129
Last Usable IP
40.65.252.254
Total IPs
128
Prefix Length
/25

Network address — the base address of the block (40.65.252.128). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 40.65.252.255 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 40.65.252.128/25
Network Address 40.65.252.128
Broadcast Address 40.65.252.255
Subnet Mask 255.255.255.128
Wildcard Mask 0.0.0.127
Prefix Length /25
IP Address Class Class A
Total IP Addresses 128
Usable Host Addresses 126
First Usable IP 40.65.252.129
Last Usable IP 40.65.252.254
Network (Hex) 0x2841FC80
Broadcast (Hex) 0x2841FCFF
Address Type Public / Globally Routable

Binary Representation

Network Address
00101000.01000001.11111100 00101000.01000001.11111100.10000000
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.

Split into Equal Subnets

Split 40.65.252.128/25 into 2 equal /26 subnets (62 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 40.65.252.128/26 40.65.252.128 40.65.252.129 40.65.252.190 40.65.252.191 62
2 40.65.252.192/26 40.65.252.192 40.65.252.193 40.65.252.254 40.65.252.255 62

IP Address Sample

Showing first 16 of 128 total IPs.

40.65.252.128 net
40.65.252.129
40.65.252.130
40.65.252.131
40.65.252.132
40.65.252.133
40.65.252.134
40.65.252.135
40.65.252.136
40.65.252.137
40.65.252.138
40.65.252.139
40.65.252.140
40.65.252.141
40.65.252.142
40.65.252.143
… 112 more IPs …

/25 Subnet Reference

Total IPs 128
Usable Hosts 126
Subnet Mask 255.255.255.128
Wildcard 0.0.0.127

Calculate Another