166.83.252.0/25

Public

Class B — /25 prefix — 126 usable hosts

Network Address
166.83.252.0
Broadcast Address
166.83.252.127
Subnet Mask
255.255.255.128
Usable Hosts
126
First Usable IP
166.83.252.1
Last Usable IP
166.83.252.126
Total IPs
128
Prefix Length
/25

Network address — the base address of the block (166.83.252.0). All devices in this subnet share this prefix. Cannot be assigned to a host.

Broadcast address — packets sent to 166.83.252.127 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 166.83.252.0/25
Network Address 166.83.252.0
Broadcast Address 166.83.252.127
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 166.83.252.1
Last Usable IP 166.83.252.126
Network (Hex) 0xA653FC00
Broadcast (Hex) 0xA653FC7F
Address Type Public / Globally Routable

Binary Representation

Network Address
10100110.01010011.11111100 10100110.01010011.11111100.00000000
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 166.83.252.0/25 into 2 equal /26 subnets (62 usable hosts each).

# CIDR Network First Usable Last Usable Broadcast Hosts
1 166.83.252.0/26 166.83.252.0 166.83.252.1 166.83.252.62 166.83.252.63 62
2 166.83.252.64/26 166.83.252.64 166.83.252.65 166.83.252.126 166.83.252.127 62

IP Address Sample

Showing first 16 of 128 total IPs.

166.83.252.0 net
166.83.252.1
166.83.252.2
166.83.252.3
166.83.252.4
166.83.252.5
166.83.252.6
166.83.252.7
166.83.252.8
166.83.252.9
166.83.252.10
166.83.252.11
166.83.252.12
166.83.252.13
166.83.252.14
166.83.252.15
… 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