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 Notation192.0.0.0/25
Network Address192.0.0.0
Broadcast Address192.0.0.127
First Host192.0.0.1
Last Host192.0.0.126
Mask & Stats
Subnet Mask255.255.255.128
Wildcard Mask0.0.0.127
Total Hosts128
Usable Hosts126
IP ClassClass C
Address Type Public
Binary Representation
IP IP in Binary
11000000.00000000.00000000.00000000
network bits   host bits
Mask in Binary
11111111.11111111.11111111.10000000
Subnet Splitter
Split into 2 subnets 4 subnets 8 subnets 16 subnets 32 subnets
#Subnet (/30)RangeBroadcast AddressUsable Hosts
1192.0.0.0/30192.0.0.1 — 192.0.0.2192.0.0.32
2192.0.0.4/30192.0.0.5 — 192.0.0.6192.0.0.72
3192.0.0.8/30192.0.0.9 — 192.0.0.10192.0.0.112
4192.0.0.12/30192.0.0.13 — 192.0.0.14192.0.0.152
5192.0.0.16/30192.0.0.17 — 192.0.0.18192.0.0.192
6192.0.0.20/30192.0.0.21 — 192.0.0.22192.0.0.232
7192.0.0.24/30192.0.0.25 — 192.0.0.26192.0.0.272
8192.0.0.28/30192.0.0.29 — 192.0.0.30192.0.0.312
9192.0.0.32/30192.0.0.33 — 192.0.0.34192.0.0.352
10192.0.0.36/30192.0.0.37 — 192.0.0.38192.0.0.392
11192.0.0.40/30192.0.0.41 — 192.0.0.42192.0.0.432
12192.0.0.44/30192.0.0.45 — 192.0.0.46192.0.0.472
13192.0.0.48/30192.0.0.49 — 192.0.0.50192.0.0.512
14192.0.0.52/30192.0.0.53 — 192.0.0.54192.0.0.552
15192.0.0.56/30192.0.0.57 — 192.0.0.58192.0.0.592
16192.0.0.60/30192.0.0.61 — 192.0.0.62192.0.0.632
17192.0.0.64/30192.0.0.65 — 192.0.0.66192.0.0.672
18192.0.0.68/30192.0.0.69 — 192.0.0.70192.0.0.712
19192.0.0.72/30192.0.0.73 — 192.0.0.74192.0.0.752
20192.0.0.76/30192.0.0.77 — 192.0.0.78192.0.0.792
21192.0.0.80/30192.0.0.81 — 192.0.0.82192.0.0.832
22192.0.0.84/30192.0.0.85 — 192.0.0.86192.0.0.872
23192.0.0.88/30192.0.0.89 — 192.0.0.90192.0.0.912
24192.0.0.92/30192.0.0.93 — 192.0.0.94192.0.0.952
25192.0.0.96/30192.0.0.97 — 192.0.0.98192.0.0.992
26192.0.0.100/30192.0.0.101 — 192.0.0.102192.0.0.1032
27192.0.0.104/30192.0.0.105 — 192.0.0.106192.0.0.1072
28192.0.0.108/30192.0.0.109 — 192.0.0.110192.0.0.1112
29192.0.0.112/30192.0.0.113 — 192.0.0.114192.0.0.1152
30192.0.0.116/30192.0.0.117 — 192.0.0.118192.0.0.1192
31192.0.0.120/30192.0.0.121 — 192.0.0.122192.0.0.1232
32192.0.0.124/30192.0.0.125 — 192.0.0.126192.0.0.1272
Converter
IP → Integer
3221225472
Mask → CIDR
/ 25
Range (hex)
0xC0000000 — 0xC000007F
Quick Converter (no reload)
IP → Integer
Integer → IP
📊 Subnet Visualization
192.0.0.0 192.0.0.127
Network ▲ 192.0.0.0 Broadcast
Usable hosts: 126
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