Subnet Mask Selector
192.168.1.0/24 10.0.0.0/8 172.16.0.0/12 192.168.100.0/26 10.10.0.0/16
Network
CIDR Notation172.16.0.0/24
Network Address172.16.0.0
Broadcast Address172.16.0.255
First Host172.16.0.1
Last Host172.16.0.254
Mask & Stats
Subnet Mask255.255.255.0
Wildcard Mask0.0.0.255
Total Hosts256
Usable Hosts254
IP ClassClass B
Address Type Private
Binary Representation
IP IP in Binary
10101100.00010000.00000000.00000000
network bits   host bits
Mask in Binary
11111111.11111111.11111111.00000000
Subnet Splitter
Split into 2 subnets 4 subnets 8 subnets 16 subnets 32 subnets
#Subnet (/27)RangeBroadcast AddressUsable Hosts
1172.16.0.0/27172.16.0.1 — 172.16.0.30172.16.0.3130
2172.16.0.32/27172.16.0.33 — 172.16.0.62172.16.0.6330
3172.16.0.64/27172.16.0.65 — 172.16.0.94172.16.0.9530
4172.16.0.96/27172.16.0.97 — 172.16.0.126172.16.0.12730
5172.16.0.128/27172.16.0.129 — 172.16.0.158172.16.0.15930
6172.16.0.160/27172.16.0.161 — 172.16.0.190172.16.0.19130
7172.16.0.192/27172.16.0.193 — 172.16.0.222172.16.0.22330
8172.16.0.224/27172.16.0.225 — 172.16.0.254172.16.0.25530
Converter
IP → Integer
2886729728
Mask → CIDR
/ 24
Range (hex)
0xAC100000 — 0xAC1000FF
Quick Converter (no reload)
IP → Integer
Integer → IP
📊 Subnet Visualization
172.16.0.0 172.16.0.255
Network ▲ 172.16.0.0 Broadcast
Usable hosts: 254
Reserved: 2
your_ip
📋 Subnet Cheat Sheet
CIDR Mask Hosts Usage
/8 255.0.0.0 16,777,214 Large Class A networks
/16 255.255.0.0 65,534 Medium corporate networks
/24 255.255.255.0 254 Typical home/office network
/25 255.255.255.128 126 Half of /24
/26 255.255.255.192 62 Small department
/27 255.255.255.224 30 Small office
/28 255.255.255.240 14 Micro-segment
/29 255.255.255.248 6 Point-to-point with hosts
/30 255.255.255.252 2 Point-to-point link
/31 255.255.255.254 2 P2P (RFC 3021)
/32 255.255.255.255 1 Single host route