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)10.167.108.0/22

network10.167.108.0/22

broadcast10.167.111.255

first host10.167.108.1

last host10.167.111.254

subnet mask255.255.252.0

wildcard0.0.3.255

addresses1,024

usable hosts1,022

classA

ipcalc 10.167.108.0/22

address00001010.10100111.01101100.00000000

subnet mask11111111.11111111.11111100.00000000

network00001010.10100111.01101100.00000000

broadcast00001010.10100111.01101111.11111111

green = network part, grey = host part

hex0x0aa76c00

decimal178744320

reverse dns0.108.167.10.in-addr.arpa

ipv4-mapped::ffff:aa7:6c00

/22 split into /29 · 128 subnets

close ×

#	network	host range	broadcast
1	10.167.108.0/29	10.167.108.1 – 10.167.108.6	10.167.108.7
2	10.167.108.8/29	10.167.108.9 – 10.167.108.14	10.167.108.15
3	10.167.108.16/29	10.167.108.17 – 10.167.108.22	10.167.108.23
4	10.167.108.24/29	10.167.108.25 – 10.167.108.30	10.167.108.31
5	10.167.108.32/29	10.167.108.33 – 10.167.108.38	10.167.108.39
6	10.167.108.40/29	10.167.108.41 – 10.167.108.46	10.167.108.47
7	10.167.108.48/29	10.167.108.49 – 10.167.108.54	10.167.108.55
8	10.167.108.56/29	10.167.108.57 – 10.167.108.62	10.167.108.63
9	10.167.108.64/29	10.167.108.65 – 10.167.108.70	10.167.108.71
10	10.167.108.72/29	10.167.108.73 – 10.167.108.78	10.167.108.79
11	10.167.108.80/29	10.167.108.81 – 10.167.108.86	10.167.108.87
12	10.167.108.88/29	10.167.108.89 – 10.167.108.94	10.167.108.95
13	10.167.108.96/29	10.167.108.97 – 10.167.108.102	10.167.108.103
14	10.167.108.104/29	10.167.108.105 – 10.167.108.110	10.167.108.111
15	10.167.108.112/29	10.167.108.113 – 10.167.108.118	10.167.108.119
16	10.167.108.120/29	10.167.108.121 – 10.167.108.126	10.167.108.127
17	10.167.108.128/29	10.167.108.129 – 10.167.108.134	10.167.108.135
18	10.167.108.136/29	10.167.108.137 – 10.167.108.142	10.167.108.143
19	10.167.108.144/29	10.167.108.145 – 10.167.108.150	10.167.108.151
20	10.167.108.152/29	10.167.108.153 – 10.167.108.158	10.167.108.159
21	10.167.108.160/29	10.167.108.161 – 10.167.108.166	10.167.108.167
22	10.167.108.168/29	10.167.108.169 – 10.167.108.174	10.167.108.175
23	10.167.108.176/29	10.167.108.177 – 10.167.108.182	10.167.108.183
24	10.167.108.184/29	10.167.108.185 – 10.167.108.190	10.167.108.191
25	10.167.108.192/29	10.167.108.193 – 10.167.108.198	10.167.108.199
26	10.167.108.200/29	10.167.108.201 – 10.167.108.206	10.167.108.207
27	10.167.108.208/29	10.167.108.209 – 10.167.108.214	10.167.108.215
28	10.167.108.216/29	10.167.108.217 – 10.167.108.222	10.167.108.223
29	10.167.108.224/29	10.167.108.225 – 10.167.108.230	10.167.108.231
30	10.167.108.232/29	10.167.108.233 – 10.167.108.238	10.167.108.239
31	10.167.108.240/29	10.167.108.241 – 10.167.108.246	10.167.108.247
32	10.167.108.248/29	10.167.108.249 – 10.167.108.254	10.167.108.255
33	10.167.109.0/29	10.167.109.1 – 10.167.109.6	10.167.109.7
34	10.167.109.8/29	10.167.109.9 – 10.167.109.14	10.167.109.15
35	10.167.109.16/29	10.167.109.17 – 10.167.109.22	10.167.109.23
36	10.167.109.24/29	10.167.109.25 – 10.167.109.30	10.167.109.31
37	10.167.109.32/29	10.167.109.33 – 10.167.109.38	10.167.109.39
38	10.167.109.40/29	10.167.109.41 – 10.167.109.46	10.167.109.47
39	10.167.109.48/29	10.167.109.49 – 10.167.109.54	10.167.109.55
40	10.167.109.56/29	10.167.109.57 – 10.167.109.62	10.167.109.63
41	10.167.109.64/29	10.167.109.65 – 10.167.109.70	10.167.109.71
42	10.167.109.72/29	10.167.109.73 – 10.167.109.78	10.167.109.79
43	10.167.109.80/29	10.167.109.81 – 10.167.109.86	10.167.109.87
44	10.167.109.88/29	10.167.109.89 – 10.167.109.94	10.167.109.95
45	10.167.109.96/29	10.167.109.97 – 10.167.109.102	10.167.109.103
46	10.167.109.104/29	10.167.109.105 – 10.167.109.110	10.167.109.111
47	10.167.109.112/29	10.167.109.113 – 10.167.109.118	10.167.109.119
48	10.167.109.120/29	10.167.109.121 – 10.167.109.126	10.167.109.127
49	10.167.109.128/29	10.167.109.129 – 10.167.109.134	10.167.109.135
50	10.167.109.136/29	10.167.109.137 – 10.167.109.142	10.167.109.143
51	10.167.109.144/29	10.167.109.145 – 10.167.109.150	10.167.109.151
52	10.167.109.152/29	10.167.109.153 – 10.167.109.158	10.167.109.159
53	10.167.109.160/29	10.167.109.161 – 10.167.109.166	10.167.109.167
54	10.167.109.168/29	10.167.109.169 – 10.167.109.174	10.167.109.175
55	10.167.109.176/29	10.167.109.177 – 10.167.109.182	10.167.109.183
56	10.167.109.184/29	10.167.109.185 – 10.167.109.190	10.167.109.191
57	10.167.109.192/29	10.167.109.193 – 10.167.109.198	10.167.109.199
58	10.167.109.200/29	10.167.109.201 – 10.167.109.206	10.167.109.207
59	10.167.109.208/29	10.167.109.209 – 10.167.109.214	10.167.109.215
60	10.167.109.216/29	10.167.109.217 – 10.167.109.222	10.167.109.223
61	10.167.109.224/29	10.167.109.225 – 10.167.109.230	10.167.109.231
62	10.167.109.232/29	10.167.109.233 – 10.167.109.238	10.167.109.239
63	10.167.109.240/29	10.167.109.241 – 10.167.109.246	10.167.109.247
64	10.167.109.248/29	10.167.109.249 – 10.167.109.254	10.167.109.255
65	10.167.110.0/29	10.167.110.1 – 10.167.110.6	10.167.110.7
66	10.167.110.8/29	10.167.110.9 – 10.167.110.14	10.167.110.15
67	10.167.110.16/29	10.167.110.17 – 10.167.110.22	10.167.110.23
68	10.167.110.24/29	10.167.110.25 – 10.167.110.30	10.167.110.31
69	10.167.110.32/29	10.167.110.33 – 10.167.110.38	10.167.110.39
70	10.167.110.40/29	10.167.110.41 – 10.167.110.46	10.167.110.47
71	10.167.110.48/29	10.167.110.49 – 10.167.110.54	10.167.110.55
72	10.167.110.56/29	10.167.110.57 – 10.167.110.62	10.167.110.63
73	10.167.110.64/29	10.167.110.65 – 10.167.110.70	10.167.110.71
74	10.167.110.72/29	10.167.110.73 – 10.167.110.78	10.167.110.79
75	10.167.110.80/29	10.167.110.81 – 10.167.110.86	10.167.110.87
76	10.167.110.88/29	10.167.110.89 – 10.167.110.94	10.167.110.95
77	10.167.110.96/29	10.167.110.97 – 10.167.110.102	10.167.110.103
78	10.167.110.104/29	10.167.110.105 – 10.167.110.110	10.167.110.111
79	10.167.110.112/29	10.167.110.113 – 10.167.110.118	10.167.110.119
80	10.167.110.120/29	10.167.110.121 – 10.167.110.126	10.167.110.127
81	10.167.110.128/29	10.167.110.129 – 10.167.110.134	10.167.110.135
82	10.167.110.136/29	10.167.110.137 – 10.167.110.142	10.167.110.143
83	10.167.110.144/29	10.167.110.145 – 10.167.110.150	10.167.110.151
84	10.167.110.152/29	10.167.110.153 – 10.167.110.158	10.167.110.159
85	10.167.110.160/29	10.167.110.161 – 10.167.110.166	10.167.110.167
86	10.167.110.168/29	10.167.110.169 – 10.167.110.174	10.167.110.175
87	10.167.110.176/29	10.167.110.177 – 10.167.110.182	10.167.110.183
88	10.167.110.184/29	10.167.110.185 – 10.167.110.190	10.167.110.191
89	10.167.110.192/29	10.167.110.193 – 10.167.110.198	10.167.110.199
90	10.167.110.200/29	10.167.110.201 – 10.167.110.206	10.167.110.207
91	10.167.110.208/29	10.167.110.209 – 10.167.110.214	10.167.110.215
92	10.167.110.216/29	10.167.110.217 – 10.167.110.222	10.167.110.223
93	10.167.110.224/29	10.167.110.225 – 10.167.110.230	10.167.110.231
94	10.167.110.232/29	10.167.110.233 – 10.167.110.238	10.167.110.239
95	10.167.110.240/29	10.167.110.241 – 10.167.110.246	10.167.110.247
96	10.167.110.248/29	10.167.110.249 – 10.167.110.254	10.167.110.255
97	10.167.111.0/29	10.167.111.1 – 10.167.111.6	10.167.111.7
98	10.167.111.8/29	10.167.111.9 – 10.167.111.14	10.167.111.15
99	10.167.111.16/29	10.167.111.17 – 10.167.111.22	10.167.111.23
100	10.167.111.24/29	10.167.111.25 – 10.167.111.30	10.167.111.31
101	10.167.111.32/29	10.167.111.33 – 10.167.111.38	10.167.111.39
102	10.167.111.40/29	10.167.111.41 – 10.167.111.46	10.167.111.47
103	10.167.111.48/29	10.167.111.49 – 10.167.111.54	10.167.111.55
104	10.167.111.56/29	10.167.111.57 – 10.167.111.62	10.167.111.63
105	10.167.111.64/29	10.167.111.65 – 10.167.111.70	10.167.111.71
106	10.167.111.72/29	10.167.111.73 – 10.167.111.78	10.167.111.79
107	10.167.111.80/29	10.167.111.81 – 10.167.111.86	10.167.111.87
108	10.167.111.88/29	10.167.111.89 – 10.167.111.94	10.167.111.95
109	10.167.111.96/29	10.167.111.97 – 10.167.111.102	10.167.111.103
110	10.167.111.104/29	10.167.111.105 – 10.167.111.110	10.167.111.111
111	10.167.111.112/29	10.167.111.113 – 10.167.111.118	10.167.111.119
112	10.167.111.120/29	10.167.111.121 – 10.167.111.126	10.167.111.127
113	10.167.111.128/29	10.167.111.129 – 10.167.111.134	10.167.111.135
114	10.167.111.136/29	10.167.111.137 – 10.167.111.142	10.167.111.143
115	10.167.111.144/29	10.167.111.145 – 10.167.111.150	10.167.111.151
116	10.167.111.152/29	10.167.111.153 – 10.167.111.158	10.167.111.159
117	10.167.111.160/29	10.167.111.161 – 10.167.111.166	10.167.111.167
118	10.167.111.168/29	10.167.111.169 – 10.167.111.174	10.167.111.175
119	10.167.111.176/29	10.167.111.177 – 10.167.111.182	10.167.111.183
120	10.167.111.184/29	10.167.111.185 – 10.167.111.190	10.167.111.191
121	10.167.111.192/29	10.167.111.193 – 10.167.111.198	10.167.111.199
122	10.167.111.200/29	10.167.111.201 – 10.167.111.206	10.167.111.207
123	10.167.111.208/29	10.167.111.209 – 10.167.111.214	10.167.111.215
124	10.167.111.216/29	10.167.111.217 – 10.167.111.222	10.167.111.223
125	10.167.111.224/29	10.167.111.225 – 10.167.111.230	10.167.111.231
126	10.167.111.232/29	10.167.111.233 – 10.167.111.238	10.167.111.239
127	10.167.111.240/29	10.167.111.241 – 10.167.111.246	10.167.111.247
128	10.167.111.248/29	10.167.111.249 – 10.167.111.254	10.167.111.255

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 →