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 Notation172.16.0.0/17
Network Address172.16.0.0
Broadcast Address172.16.127.255
First Host172.16.0.1
Last Host172.16.127.254
Mask & Stats
Subnet Mask255.255.128.0
Wildcard Mask0.0.127.255
Total Hosts32,768
Usable Hosts32,766
IP ClassClass B
Address Type Private
Binary Representation
IP IP in Binary
10101100.00010000.00000000.00000000
network bits   host bits
Mask in Binary
11111111.11111111.10000000.00000000
Subnet Splitter
Split into 2 subnets 4 subnets 8 subnets 16 subnets 32 subnets
#Subnet (/22)RangeBroadcast AddressUsable Hosts
1172.16.0.0/22172.16.0.1 — 172.16.3.254172.16.3.2551,022
2172.16.4.0/22172.16.4.1 — 172.16.7.254172.16.7.2551,022
3172.16.8.0/22172.16.8.1 — 172.16.11.254172.16.11.2551,022
4172.16.12.0/22172.16.12.1 — 172.16.15.254172.16.15.2551,022
5172.16.16.0/22172.16.16.1 — 172.16.19.254172.16.19.2551,022
6172.16.20.0/22172.16.20.1 — 172.16.23.254172.16.23.2551,022
7172.16.24.0/22172.16.24.1 — 172.16.27.254172.16.27.2551,022
8172.16.28.0/22172.16.28.1 — 172.16.31.254172.16.31.2551,022
9172.16.32.0/22172.16.32.1 — 172.16.35.254172.16.35.2551,022
10172.16.36.0/22172.16.36.1 — 172.16.39.254172.16.39.2551,022
11172.16.40.0/22172.16.40.1 — 172.16.43.254172.16.43.2551,022
12172.16.44.0/22172.16.44.1 — 172.16.47.254172.16.47.2551,022
13172.16.48.0/22172.16.48.1 — 172.16.51.254172.16.51.2551,022
14172.16.52.0/22172.16.52.1 — 172.16.55.254172.16.55.2551,022
15172.16.56.0/22172.16.56.1 — 172.16.59.254172.16.59.2551,022
16172.16.60.0/22172.16.60.1 — 172.16.63.254172.16.63.2551,022
17172.16.64.0/22172.16.64.1 — 172.16.67.254172.16.67.2551,022
18172.16.68.0/22172.16.68.1 — 172.16.71.254172.16.71.2551,022
19172.16.72.0/22172.16.72.1 — 172.16.75.254172.16.75.2551,022
20172.16.76.0/22172.16.76.1 — 172.16.79.254172.16.79.2551,022
21172.16.80.0/22172.16.80.1 — 172.16.83.254172.16.83.2551,022
22172.16.84.0/22172.16.84.1 — 172.16.87.254172.16.87.2551,022
23172.16.88.0/22172.16.88.1 — 172.16.91.254172.16.91.2551,022
24172.16.92.0/22172.16.92.1 — 172.16.95.254172.16.95.2551,022
25172.16.96.0/22172.16.96.1 — 172.16.99.254172.16.99.2551,022
26172.16.100.0/22172.16.100.1 — 172.16.103.254172.16.103.2551,022
27172.16.104.0/22172.16.104.1 — 172.16.107.254172.16.107.2551,022
28172.16.108.0/22172.16.108.1 — 172.16.111.254172.16.111.2551,022
29172.16.112.0/22172.16.112.1 — 172.16.115.254172.16.115.2551,022
30172.16.116.0/22172.16.116.1 — 172.16.119.254172.16.119.2551,022
31172.16.120.0/22172.16.120.1 — 172.16.123.254172.16.123.2551,022
32172.16.124.0/22172.16.124.1 — 172.16.127.254172.16.127.2551,022
Converter
IP → Integer
2886729728
Mask → CIDR
/ 17
Range (hex)
0xAC100000 — 0xAC107FFF
Quick Converter (no reload)
IP → Integer
Integer → IP
📊 Subnet Visualization
172.16.0.0 172.16.127.255
Network ▲ 172.16.0.0 Broadcast
Usable hosts: 32,766
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