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)10.231.52.0/22

network10.231.52.0/22

broadcast10.231.55.255

first host10.231.52.1

last host10.231.55.254

subnet mask255.255.252.0

wildcard0.0.3.255

addresses1,024

usable hosts1,022

classA

ipcalc 10.231.52.0/22

address00001010.11100111.00110100.00000000

subnet mask11111111.11111111.11111100.00000000

network00001010.11100111.00110100.00000000

broadcast00001010.11100111.00110111.11111111

green = network part, grey = host part

hex0x0ae73400

decimal182924288

reverse dns0.52.231.10.in-addr.arpa

ipv4-mapped::ffff:ae7:3400

/22 split into /29 · 128 subnets

close ×

#	network	host range	broadcast
1	10.231.52.0/29	10.231.52.1 – 10.231.52.6	10.231.52.7
2	10.231.52.8/29	10.231.52.9 – 10.231.52.14	10.231.52.15
3	10.231.52.16/29	10.231.52.17 – 10.231.52.22	10.231.52.23
4	10.231.52.24/29	10.231.52.25 – 10.231.52.30	10.231.52.31
5	10.231.52.32/29	10.231.52.33 – 10.231.52.38	10.231.52.39
6	10.231.52.40/29	10.231.52.41 – 10.231.52.46	10.231.52.47
7	10.231.52.48/29	10.231.52.49 – 10.231.52.54	10.231.52.55
8	10.231.52.56/29	10.231.52.57 – 10.231.52.62	10.231.52.63
9	10.231.52.64/29	10.231.52.65 – 10.231.52.70	10.231.52.71
10	10.231.52.72/29	10.231.52.73 – 10.231.52.78	10.231.52.79
11	10.231.52.80/29	10.231.52.81 – 10.231.52.86	10.231.52.87
12	10.231.52.88/29	10.231.52.89 – 10.231.52.94	10.231.52.95
13	10.231.52.96/29	10.231.52.97 – 10.231.52.102	10.231.52.103
14	10.231.52.104/29	10.231.52.105 – 10.231.52.110	10.231.52.111
15	10.231.52.112/29	10.231.52.113 – 10.231.52.118	10.231.52.119
16	10.231.52.120/29	10.231.52.121 – 10.231.52.126	10.231.52.127
17	10.231.52.128/29	10.231.52.129 – 10.231.52.134	10.231.52.135
18	10.231.52.136/29	10.231.52.137 – 10.231.52.142	10.231.52.143
19	10.231.52.144/29	10.231.52.145 – 10.231.52.150	10.231.52.151
20	10.231.52.152/29	10.231.52.153 – 10.231.52.158	10.231.52.159
21	10.231.52.160/29	10.231.52.161 – 10.231.52.166	10.231.52.167
22	10.231.52.168/29	10.231.52.169 – 10.231.52.174	10.231.52.175
23	10.231.52.176/29	10.231.52.177 – 10.231.52.182	10.231.52.183
24	10.231.52.184/29	10.231.52.185 – 10.231.52.190	10.231.52.191
25	10.231.52.192/29	10.231.52.193 – 10.231.52.198	10.231.52.199
26	10.231.52.200/29	10.231.52.201 – 10.231.52.206	10.231.52.207
27	10.231.52.208/29	10.231.52.209 – 10.231.52.214	10.231.52.215
28	10.231.52.216/29	10.231.52.217 – 10.231.52.222	10.231.52.223
29	10.231.52.224/29	10.231.52.225 – 10.231.52.230	10.231.52.231
30	10.231.52.232/29	10.231.52.233 – 10.231.52.238	10.231.52.239
31	10.231.52.240/29	10.231.52.241 – 10.231.52.246	10.231.52.247
32	10.231.52.248/29	10.231.52.249 – 10.231.52.254	10.231.52.255
33	10.231.53.0/29	10.231.53.1 – 10.231.53.6	10.231.53.7
34	10.231.53.8/29	10.231.53.9 – 10.231.53.14	10.231.53.15
35	10.231.53.16/29	10.231.53.17 – 10.231.53.22	10.231.53.23
36	10.231.53.24/29	10.231.53.25 – 10.231.53.30	10.231.53.31
37	10.231.53.32/29	10.231.53.33 – 10.231.53.38	10.231.53.39
38	10.231.53.40/29	10.231.53.41 – 10.231.53.46	10.231.53.47
39	10.231.53.48/29	10.231.53.49 – 10.231.53.54	10.231.53.55
40	10.231.53.56/29	10.231.53.57 – 10.231.53.62	10.231.53.63
41	10.231.53.64/29	10.231.53.65 – 10.231.53.70	10.231.53.71
42	10.231.53.72/29	10.231.53.73 – 10.231.53.78	10.231.53.79
43	10.231.53.80/29	10.231.53.81 – 10.231.53.86	10.231.53.87
44	10.231.53.88/29	10.231.53.89 – 10.231.53.94	10.231.53.95
45	10.231.53.96/29	10.231.53.97 – 10.231.53.102	10.231.53.103
46	10.231.53.104/29	10.231.53.105 – 10.231.53.110	10.231.53.111
47	10.231.53.112/29	10.231.53.113 – 10.231.53.118	10.231.53.119
48	10.231.53.120/29	10.231.53.121 – 10.231.53.126	10.231.53.127
49	10.231.53.128/29	10.231.53.129 – 10.231.53.134	10.231.53.135
50	10.231.53.136/29	10.231.53.137 – 10.231.53.142	10.231.53.143
51	10.231.53.144/29	10.231.53.145 – 10.231.53.150	10.231.53.151
52	10.231.53.152/29	10.231.53.153 – 10.231.53.158	10.231.53.159
53	10.231.53.160/29	10.231.53.161 – 10.231.53.166	10.231.53.167
54	10.231.53.168/29	10.231.53.169 – 10.231.53.174	10.231.53.175
55	10.231.53.176/29	10.231.53.177 – 10.231.53.182	10.231.53.183
56	10.231.53.184/29	10.231.53.185 – 10.231.53.190	10.231.53.191
57	10.231.53.192/29	10.231.53.193 – 10.231.53.198	10.231.53.199
58	10.231.53.200/29	10.231.53.201 – 10.231.53.206	10.231.53.207
59	10.231.53.208/29	10.231.53.209 – 10.231.53.214	10.231.53.215
60	10.231.53.216/29	10.231.53.217 – 10.231.53.222	10.231.53.223
61	10.231.53.224/29	10.231.53.225 – 10.231.53.230	10.231.53.231
62	10.231.53.232/29	10.231.53.233 – 10.231.53.238	10.231.53.239
63	10.231.53.240/29	10.231.53.241 – 10.231.53.246	10.231.53.247
64	10.231.53.248/29	10.231.53.249 – 10.231.53.254	10.231.53.255
65	10.231.54.0/29	10.231.54.1 – 10.231.54.6	10.231.54.7
66	10.231.54.8/29	10.231.54.9 – 10.231.54.14	10.231.54.15
67	10.231.54.16/29	10.231.54.17 – 10.231.54.22	10.231.54.23
68	10.231.54.24/29	10.231.54.25 – 10.231.54.30	10.231.54.31
69	10.231.54.32/29	10.231.54.33 – 10.231.54.38	10.231.54.39
70	10.231.54.40/29	10.231.54.41 – 10.231.54.46	10.231.54.47
71	10.231.54.48/29	10.231.54.49 – 10.231.54.54	10.231.54.55
72	10.231.54.56/29	10.231.54.57 – 10.231.54.62	10.231.54.63
73	10.231.54.64/29	10.231.54.65 – 10.231.54.70	10.231.54.71
74	10.231.54.72/29	10.231.54.73 – 10.231.54.78	10.231.54.79
75	10.231.54.80/29	10.231.54.81 – 10.231.54.86	10.231.54.87
76	10.231.54.88/29	10.231.54.89 – 10.231.54.94	10.231.54.95
77	10.231.54.96/29	10.231.54.97 – 10.231.54.102	10.231.54.103
78	10.231.54.104/29	10.231.54.105 – 10.231.54.110	10.231.54.111
79	10.231.54.112/29	10.231.54.113 – 10.231.54.118	10.231.54.119
80	10.231.54.120/29	10.231.54.121 – 10.231.54.126	10.231.54.127
81	10.231.54.128/29	10.231.54.129 – 10.231.54.134	10.231.54.135
82	10.231.54.136/29	10.231.54.137 – 10.231.54.142	10.231.54.143
83	10.231.54.144/29	10.231.54.145 – 10.231.54.150	10.231.54.151
84	10.231.54.152/29	10.231.54.153 – 10.231.54.158	10.231.54.159
85	10.231.54.160/29	10.231.54.161 – 10.231.54.166	10.231.54.167
86	10.231.54.168/29	10.231.54.169 – 10.231.54.174	10.231.54.175
87	10.231.54.176/29	10.231.54.177 – 10.231.54.182	10.231.54.183
88	10.231.54.184/29	10.231.54.185 – 10.231.54.190	10.231.54.191
89	10.231.54.192/29	10.231.54.193 – 10.231.54.198	10.231.54.199
90	10.231.54.200/29	10.231.54.201 – 10.231.54.206	10.231.54.207
91	10.231.54.208/29	10.231.54.209 – 10.231.54.214	10.231.54.215
92	10.231.54.216/29	10.231.54.217 – 10.231.54.222	10.231.54.223
93	10.231.54.224/29	10.231.54.225 – 10.231.54.230	10.231.54.231
94	10.231.54.232/29	10.231.54.233 – 10.231.54.238	10.231.54.239
95	10.231.54.240/29	10.231.54.241 – 10.231.54.246	10.231.54.247
96	10.231.54.248/29	10.231.54.249 – 10.231.54.254	10.231.54.255
97	10.231.55.0/29	10.231.55.1 – 10.231.55.6	10.231.55.7
98	10.231.55.8/29	10.231.55.9 – 10.231.55.14	10.231.55.15
99	10.231.55.16/29	10.231.55.17 – 10.231.55.22	10.231.55.23
100	10.231.55.24/29	10.231.55.25 – 10.231.55.30	10.231.55.31
101	10.231.55.32/29	10.231.55.33 – 10.231.55.38	10.231.55.39
102	10.231.55.40/29	10.231.55.41 – 10.231.55.46	10.231.55.47
103	10.231.55.48/29	10.231.55.49 – 10.231.55.54	10.231.55.55
104	10.231.55.56/29	10.231.55.57 – 10.231.55.62	10.231.55.63
105	10.231.55.64/29	10.231.55.65 – 10.231.55.70	10.231.55.71
106	10.231.55.72/29	10.231.55.73 – 10.231.55.78	10.231.55.79
107	10.231.55.80/29	10.231.55.81 – 10.231.55.86	10.231.55.87
108	10.231.55.88/29	10.231.55.89 – 10.231.55.94	10.231.55.95
109	10.231.55.96/29	10.231.55.97 – 10.231.55.102	10.231.55.103
110	10.231.55.104/29	10.231.55.105 – 10.231.55.110	10.231.55.111
111	10.231.55.112/29	10.231.55.113 – 10.231.55.118	10.231.55.119
112	10.231.55.120/29	10.231.55.121 – 10.231.55.126	10.231.55.127
113	10.231.55.128/29	10.231.55.129 – 10.231.55.134	10.231.55.135
114	10.231.55.136/29	10.231.55.137 – 10.231.55.142	10.231.55.143
115	10.231.55.144/29	10.231.55.145 – 10.231.55.150	10.231.55.151
116	10.231.55.152/29	10.231.55.153 – 10.231.55.158	10.231.55.159
117	10.231.55.160/29	10.231.55.161 – 10.231.55.166	10.231.55.167
118	10.231.55.168/29	10.231.55.169 – 10.231.55.174	10.231.55.175
119	10.231.55.176/29	10.231.55.177 – 10.231.55.182	10.231.55.183
120	10.231.55.184/29	10.231.55.185 – 10.231.55.190	10.231.55.191
121	10.231.55.192/29	10.231.55.193 – 10.231.55.198	10.231.55.199
122	10.231.55.200/29	10.231.55.201 – 10.231.55.206	10.231.55.207
123	10.231.55.208/29	10.231.55.209 – 10.231.55.214	10.231.55.215
124	10.231.55.216/29	10.231.55.217 – 10.231.55.222	10.231.55.223
125	10.231.55.224/29	10.231.55.225 – 10.231.55.230	10.231.55.231
126	10.231.55.232/29	10.231.55.233 – 10.231.55.238	10.231.55.239
127	10.231.55.240/29	10.231.55.241 – 10.231.55.246	10.231.55.247
128	10.231.55.248/29	10.231.55.249 – 10.231.55.254	10.231.55.255

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 →