IPv4 Subnet Calculator

Enter an IP with a CIDR prefix or a subnet mask to see its network, broadcast, host range, and host count. You can also split the network into smaller subnets.

Try:192.168.1.10/24 10.0.0.0/8 172.16.5.4/20 203.0.113.9/29

IPv6 calculator →

private IP (RFC 1918)10.2.116.0/22

network10.2.116.0/22

broadcast10.2.119.255

first host10.2.116.1

last host10.2.119.254

subnet mask255.255.252.0

wildcard0.0.3.255

addresses1,024

usable hosts1,022

classA

ipcalc 10.2.116.0/22

address00001010.00000010.01110100.00000000

subnet mask11111111.11111111.11111100.00000000

network00001010.00000010.01110100.00000000

broadcast00001010.00000010.01110111.11111111

green = network part, grey = host part

hex0x0a027400

decimal167932928

reverse dns0.116.2.10.in-addr.arpa

ipv4-mapped::ffff:a02:7400

/22 split into /29 · 128 subnets

close ×

#	network	host range	broadcast
1	10.2.116.0/29	10.2.116.1 – 10.2.116.6	10.2.116.7
2	10.2.116.8/29	10.2.116.9 – 10.2.116.14	10.2.116.15
3	10.2.116.16/29	10.2.116.17 – 10.2.116.22	10.2.116.23
4	10.2.116.24/29	10.2.116.25 – 10.2.116.30	10.2.116.31
5	10.2.116.32/29	10.2.116.33 – 10.2.116.38	10.2.116.39
6	10.2.116.40/29	10.2.116.41 – 10.2.116.46	10.2.116.47
7	10.2.116.48/29	10.2.116.49 – 10.2.116.54	10.2.116.55
8	10.2.116.56/29	10.2.116.57 – 10.2.116.62	10.2.116.63
9	10.2.116.64/29	10.2.116.65 – 10.2.116.70	10.2.116.71
10	10.2.116.72/29	10.2.116.73 – 10.2.116.78	10.2.116.79
11	10.2.116.80/29	10.2.116.81 – 10.2.116.86	10.2.116.87
12	10.2.116.88/29	10.2.116.89 – 10.2.116.94	10.2.116.95
13	10.2.116.96/29	10.2.116.97 – 10.2.116.102	10.2.116.103
14	10.2.116.104/29	10.2.116.105 – 10.2.116.110	10.2.116.111
15	10.2.116.112/29	10.2.116.113 – 10.2.116.118	10.2.116.119
16	10.2.116.120/29	10.2.116.121 – 10.2.116.126	10.2.116.127
17	10.2.116.128/29	10.2.116.129 – 10.2.116.134	10.2.116.135
18	10.2.116.136/29	10.2.116.137 – 10.2.116.142	10.2.116.143
19	10.2.116.144/29	10.2.116.145 – 10.2.116.150	10.2.116.151
20	10.2.116.152/29	10.2.116.153 – 10.2.116.158	10.2.116.159
21	10.2.116.160/29	10.2.116.161 – 10.2.116.166	10.2.116.167
22	10.2.116.168/29	10.2.116.169 – 10.2.116.174	10.2.116.175
23	10.2.116.176/29	10.2.116.177 – 10.2.116.182	10.2.116.183
24	10.2.116.184/29	10.2.116.185 – 10.2.116.190	10.2.116.191
25	10.2.116.192/29	10.2.116.193 – 10.2.116.198	10.2.116.199
26	10.2.116.200/29	10.2.116.201 – 10.2.116.206	10.2.116.207
27	10.2.116.208/29	10.2.116.209 – 10.2.116.214	10.2.116.215
28	10.2.116.216/29	10.2.116.217 – 10.2.116.222	10.2.116.223
29	10.2.116.224/29	10.2.116.225 – 10.2.116.230	10.2.116.231
30	10.2.116.232/29	10.2.116.233 – 10.2.116.238	10.2.116.239
31	10.2.116.240/29	10.2.116.241 – 10.2.116.246	10.2.116.247
32	10.2.116.248/29	10.2.116.249 – 10.2.116.254	10.2.116.255
33	10.2.117.0/29	10.2.117.1 – 10.2.117.6	10.2.117.7
34	10.2.117.8/29	10.2.117.9 – 10.2.117.14	10.2.117.15
35	10.2.117.16/29	10.2.117.17 – 10.2.117.22	10.2.117.23
36	10.2.117.24/29	10.2.117.25 – 10.2.117.30	10.2.117.31
37	10.2.117.32/29	10.2.117.33 – 10.2.117.38	10.2.117.39
38	10.2.117.40/29	10.2.117.41 – 10.2.117.46	10.2.117.47
39	10.2.117.48/29	10.2.117.49 – 10.2.117.54	10.2.117.55
40	10.2.117.56/29	10.2.117.57 – 10.2.117.62	10.2.117.63
41	10.2.117.64/29	10.2.117.65 – 10.2.117.70	10.2.117.71
42	10.2.117.72/29	10.2.117.73 – 10.2.117.78	10.2.117.79
43	10.2.117.80/29	10.2.117.81 – 10.2.117.86	10.2.117.87
44	10.2.117.88/29	10.2.117.89 – 10.2.117.94	10.2.117.95
45	10.2.117.96/29	10.2.117.97 – 10.2.117.102	10.2.117.103
46	10.2.117.104/29	10.2.117.105 – 10.2.117.110	10.2.117.111
47	10.2.117.112/29	10.2.117.113 – 10.2.117.118	10.2.117.119
48	10.2.117.120/29	10.2.117.121 – 10.2.117.126	10.2.117.127
49	10.2.117.128/29	10.2.117.129 – 10.2.117.134	10.2.117.135
50	10.2.117.136/29	10.2.117.137 – 10.2.117.142	10.2.117.143
51	10.2.117.144/29	10.2.117.145 – 10.2.117.150	10.2.117.151
52	10.2.117.152/29	10.2.117.153 – 10.2.117.158	10.2.117.159
53	10.2.117.160/29	10.2.117.161 – 10.2.117.166	10.2.117.167
54	10.2.117.168/29	10.2.117.169 – 10.2.117.174	10.2.117.175
55	10.2.117.176/29	10.2.117.177 – 10.2.117.182	10.2.117.183
56	10.2.117.184/29	10.2.117.185 – 10.2.117.190	10.2.117.191
57	10.2.117.192/29	10.2.117.193 – 10.2.117.198	10.2.117.199
58	10.2.117.200/29	10.2.117.201 – 10.2.117.206	10.2.117.207
59	10.2.117.208/29	10.2.117.209 – 10.2.117.214	10.2.117.215
60	10.2.117.216/29	10.2.117.217 – 10.2.117.222	10.2.117.223
61	10.2.117.224/29	10.2.117.225 – 10.2.117.230	10.2.117.231
62	10.2.117.232/29	10.2.117.233 – 10.2.117.238	10.2.117.239
63	10.2.117.240/29	10.2.117.241 – 10.2.117.246	10.2.117.247
64	10.2.117.248/29	10.2.117.249 – 10.2.117.254	10.2.117.255
65	10.2.118.0/29	10.2.118.1 – 10.2.118.6	10.2.118.7
66	10.2.118.8/29	10.2.118.9 – 10.2.118.14	10.2.118.15
67	10.2.118.16/29	10.2.118.17 – 10.2.118.22	10.2.118.23
68	10.2.118.24/29	10.2.118.25 – 10.2.118.30	10.2.118.31
69	10.2.118.32/29	10.2.118.33 – 10.2.118.38	10.2.118.39
70	10.2.118.40/29	10.2.118.41 – 10.2.118.46	10.2.118.47
71	10.2.118.48/29	10.2.118.49 – 10.2.118.54	10.2.118.55
72	10.2.118.56/29	10.2.118.57 – 10.2.118.62	10.2.118.63
73	10.2.118.64/29	10.2.118.65 – 10.2.118.70	10.2.118.71
74	10.2.118.72/29	10.2.118.73 – 10.2.118.78	10.2.118.79
75	10.2.118.80/29	10.2.118.81 – 10.2.118.86	10.2.118.87
76	10.2.118.88/29	10.2.118.89 – 10.2.118.94	10.2.118.95
77	10.2.118.96/29	10.2.118.97 – 10.2.118.102	10.2.118.103
78	10.2.118.104/29	10.2.118.105 – 10.2.118.110	10.2.118.111
79	10.2.118.112/29	10.2.118.113 – 10.2.118.118	10.2.118.119
80	10.2.118.120/29	10.2.118.121 – 10.2.118.126	10.2.118.127
81	10.2.118.128/29	10.2.118.129 – 10.2.118.134	10.2.118.135
82	10.2.118.136/29	10.2.118.137 – 10.2.118.142	10.2.118.143
83	10.2.118.144/29	10.2.118.145 – 10.2.118.150	10.2.118.151
84	10.2.118.152/29	10.2.118.153 – 10.2.118.158	10.2.118.159
85	10.2.118.160/29	10.2.118.161 – 10.2.118.166	10.2.118.167
86	10.2.118.168/29	10.2.118.169 – 10.2.118.174	10.2.118.175
87	10.2.118.176/29	10.2.118.177 – 10.2.118.182	10.2.118.183
88	10.2.118.184/29	10.2.118.185 – 10.2.118.190	10.2.118.191
89	10.2.118.192/29	10.2.118.193 – 10.2.118.198	10.2.118.199
90	10.2.118.200/29	10.2.118.201 – 10.2.118.206	10.2.118.207
91	10.2.118.208/29	10.2.118.209 – 10.2.118.214	10.2.118.215
92	10.2.118.216/29	10.2.118.217 – 10.2.118.222	10.2.118.223
93	10.2.118.224/29	10.2.118.225 – 10.2.118.230	10.2.118.231
94	10.2.118.232/29	10.2.118.233 – 10.2.118.238	10.2.118.239
95	10.2.118.240/29	10.2.118.241 – 10.2.118.246	10.2.118.247
96	10.2.118.248/29	10.2.118.249 – 10.2.118.254	10.2.118.255
97	10.2.119.0/29	10.2.119.1 – 10.2.119.6	10.2.119.7
98	10.2.119.8/29	10.2.119.9 – 10.2.119.14	10.2.119.15
99	10.2.119.16/29	10.2.119.17 – 10.2.119.22	10.2.119.23
100	10.2.119.24/29	10.2.119.25 – 10.2.119.30	10.2.119.31
101	10.2.119.32/29	10.2.119.33 – 10.2.119.38	10.2.119.39
102	10.2.119.40/29	10.2.119.41 – 10.2.119.46	10.2.119.47
103	10.2.119.48/29	10.2.119.49 – 10.2.119.54	10.2.119.55
104	10.2.119.56/29	10.2.119.57 – 10.2.119.62	10.2.119.63
105	10.2.119.64/29	10.2.119.65 – 10.2.119.70	10.2.119.71
106	10.2.119.72/29	10.2.119.73 – 10.2.119.78	10.2.119.79
107	10.2.119.80/29	10.2.119.81 – 10.2.119.86	10.2.119.87
108	10.2.119.88/29	10.2.119.89 – 10.2.119.94	10.2.119.95
109	10.2.119.96/29	10.2.119.97 – 10.2.119.102	10.2.119.103
110	10.2.119.104/29	10.2.119.105 – 10.2.119.110	10.2.119.111
111	10.2.119.112/29	10.2.119.113 – 10.2.119.118	10.2.119.119
112	10.2.119.120/29	10.2.119.121 – 10.2.119.126	10.2.119.127
113	10.2.119.128/29	10.2.119.129 – 10.2.119.134	10.2.119.135
114	10.2.119.136/29	10.2.119.137 – 10.2.119.142	10.2.119.143
115	10.2.119.144/29	10.2.119.145 – 10.2.119.150	10.2.119.151
116	10.2.119.152/29	10.2.119.153 – 10.2.119.158	10.2.119.159
117	10.2.119.160/29	10.2.119.161 – 10.2.119.166	10.2.119.167
118	10.2.119.168/29	10.2.119.169 – 10.2.119.174	10.2.119.175
119	10.2.119.176/29	10.2.119.177 – 10.2.119.182	10.2.119.183
120	10.2.119.184/29	10.2.119.185 – 10.2.119.190	10.2.119.191
121	10.2.119.192/29	10.2.119.193 – 10.2.119.198	10.2.119.199
122	10.2.119.200/29	10.2.119.201 – 10.2.119.206	10.2.119.207
123	10.2.119.208/29	10.2.119.209 – 10.2.119.214	10.2.119.215
124	10.2.119.216/29	10.2.119.217 – 10.2.119.222	10.2.119.223
125	10.2.119.224/29	10.2.119.225 – 10.2.119.230	10.2.119.231
126	10.2.119.232/29	10.2.119.233 – 10.2.119.238	10.2.119.239
127	10.2.119.240/29	10.2.119.241 – 10.2.119.246	10.2.119.247
128	10.2.119.248/29	10.2.119.249 – 10.2.119.254	10.2.119.255

01 / table

IPv4 CIDR prefix table.

Click a prefix longer than your network to split it into subnets.

prefix	subnet mask	addresses	hosts	in your /22
/0	0.0.0.0	4,294,967,296	4,294,967,294	-
/1	128.0.0.0	2,147,483,648	2,147,483,646	-
/2	192.0.0.0	1,073,741,824	1,073,741,822	-
/3	224.0.0.0	536,870,912	536,870,910	-
/4	240.0.0.0	268,435,456	268,435,454	-
/5	248.0.0.0	134,217,728	134,217,726	-
/6	252.0.0.0	67,108,864	67,108,862	-
/7	254.0.0.0	33,554,432	33,554,430	-
/8	255.0.0.0	16,777,216	16,777,214	-
/9	255.128.0.0	8,388,608	8,388,606	-
/10	255.192.0.0	4,194,304	4,194,302	-
/11	255.224.0.0	2,097,152	2,097,150	-
/12	255.240.0.0	1,048,576	1,048,574	-
/13	255.248.0.0	524,288	524,286	-
/14	255.252.0.0	262,144	262,142	-
/15	255.254.0.0	131,072	131,070	-
/16	255.255.0.0	65,536	65,534	-
/17	255.255.128.0	32,768	32,766	-
/18	255.255.192.0	16,384	16,382	-
/19	255.255.224.0	8,192	8,190	-
/20	255.255.240.0	4,096	4,094	-
/21	255.255.248.0	2,048	2,046	-
/22	255.255.252.0	1,024	1,022	1
/23	255.255.254.0	512	510	2 split →
/24	255.255.255.0	256	254	4 split →
/25	255.255.255.128	128	126	8 split →
/26	255.255.255.192	64	62	16 split →
/27	255.255.255.224	32	30	32 split →
/28	255.255.255.240	16	14	64 split →
/29	255.255.255.248	8	6	128 split →
/30	255.255.255.252	4	2	256 split →
/31	255.255.255.254	2	2	512 split →
/32	255.255.255.255	1	1	1,024 split →

02 / faq

About this calculator.

How do I use this subnet calculator?

▼

Type an IP address followed by a prefix, like 192.168.1.10/24, or by a subnet mask, like 192.168.1.10 255.255.255.0. Without a prefix it uses /24. Click a row in the table to split the network into smaller subnets.

Why are usable hosts always 2 fewer?

▼

The first address in a subnet is the network address and the last is the broadcast address, so neither can go to a device. The exceptions are /31 (point-to-point links, RFC 3021) and /32 (a single address), which use every address.

Can I use it from a terminal?

▼

Yes. curl 'ipku.in/en/tools/ipv4-subnet-calculator?q=192.168.1.10/24' returns the result as plain text.

Learn how to work it out →