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 Notation192.0.0.0/17
Network Address192.0.0.0
Broadcast Address192.0.127.255
First Host192.0.0.1
Last Host192.0.127.254
Mask & Stats
Subnet Mask255.255.128.0
Wildcard Mask0.0.127.255
Total Hosts32,768
Usable Hosts32,766
IP ClassClass C
Address Type Public
Binary Representation
IP IP in Binary
11000000.00000000.00000000.00000000
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
1192.0.0.0/22192.0.0.1 — 192.0.3.254192.0.3.2551,022
2192.0.4.0/22192.0.4.1 — 192.0.7.254192.0.7.2551,022
3192.0.8.0/22192.0.8.1 — 192.0.11.254192.0.11.2551,022
4192.0.12.0/22192.0.12.1 — 192.0.15.254192.0.15.2551,022
5192.0.16.0/22192.0.16.1 — 192.0.19.254192.0.19.2551,022
6192.0.20.0/22192.0.20.1 — 192.0.23.254192.0.23.2551,022
7192.0.24.0/22192.0.24.1 — 192.0.27.254192.0.27.2551,022
8192.0.28.0/22192.0.28.1 — 192.0.31.254192.0.31.2551,022
9192.0.32.0/22192.0.32.1 — 192.0.35.254192.0.35.2551,022
10192.0.36.0/22192.0.36.1 — 192.0.39.254192.0.39.2551,022
11192.0.40.0/22192.0.40.1 — 192.0.43.254192.0.43.2551,022
12192.0.44.0/22192.0.44.1 — 192.0.47.254192.0.47.2551,022
13192.0.48.0/22192.0.48.1 — 192.0.51.254192.0.51.2551,022
14192.0.52.0/22192.0.52.1 — 192.0.55.254192.0.55.2551,022
15192.0.56.0/22192.0.56.1 — 192.0.59.254192.0.59.2551,022
16192.0.60.0/22192.0.60.1 — 192.0.63.254192.0.63.2551,022
17192.0.64.0/22192.0.64.1 — 192.0.67.254192.0.67.2551,022
18192.0.68.0/22192.0.68.1 — 192.0.71.254192.0.71.2551,022
19192.0.72.0/22192.0.72.1 — 192.0.75.254192.0.75.2551,022
20192.0.76.0/22192.0.76.1 — 192.0.79.254192.0.79.2551,022
21192.0.80.0/22192.0.80.1 — 192.0.83.254192.0.83.2551,022
22192.0.84.0/22192.0.84.1 — 192.0.87.254192.0.87.2551,022
23192.0.88.0/22192.0.88.1 — 192.0.91.254192.0.91.2551,022
24192.0.92.0/22192.0.92.1 — 192.0.95.254192.0.95.2551,022
25192.0.96.0/22192.0.96.1 — 192.0.99.254192.0.99.2551,022
26192.0.100.0/22192.0.100.1 — 192.0.103.254192.0.103.2551,022
27192.0.104.0/22192.0.104.1 — 192.0.107.254192.0.107.2551,022
28192.0.108.0/22192.0.108.1 — 192.0.111.254192.0.111.2551,022
29192.0.112.0/22192.0.112.1 — 192.0.115.254192.0.115.2551,022
30192.0.116.0/22192.0.116.1 — 192.0.119.254192.0.119.2551,022
31192.0.120.0/22192.0.120.1 — 192.0.123.254192.0.123.2551,022
32192.0.124.0/22192.0.124.1 — 192.0.127.254192.0.127.2551,022
Converter
IP → Integer
3221225472
Mask → CIDR
/ 17
Range (hex)
0xC0000000 — 0xC0007FFF
Quick Converter (no reload)
IP → Integer
Integer → IP
📊 Subnet Visualization
192.0.0.0 192.0.127.255
Network ▲ 192.0.0.0 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