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)10.52.232.0/24

network10.52.232.0/24

broadcast10.52.232.255

first host10.52.232.1

last host10.52.232.254

subnet mask255.255.255.0

wildcard0.0.0.255

addresses256

usable hosts254

classA

ipcalc 10.52.232.0/24

address00001010.00110100.11101000.00000000

subnet mask11111111.11111111.11111111.00000000

network00001010.00110100.11101000.00000000

broadcast00001010.00110100.11101000.11111111

green = network part, grey = host part

hex0x0a34e800

decimal171239424

reverse dns0.232.52.10.in-addr.arpa

ipv4-mapped::ffff:a34:e800

/24 split into /31 · 128 subnets

close ×

#	network	host range	broadcast
1	10.52.232.0/31	10.52.232.0 – 10.52.232.1	10.52.232.1
2	10.52.232.2/31	10.52.232.2 – 10.52.232.3	10.52.232.3
3	10.52.232.4/31	10.52.232.4 – 10.52.232.5	10.52.232.5
4	10.52.232.6/31	10.52.232.6 – 10.52.232.7	10.52.232.7
5	10.52.232.8/31	10.52.232.8 – 10.52.232.9	10.52.232.9
6	10.52.232.10/31	10.52.232.10 – 10.52.232.11	10.52.232.11
7	10.52.232.12/31	10.52.232.12 – 10.52.232.13	10.52.232.13
8	10.52.232.14/31	10.52.232.14 – 10.52.232.15	10.52.232.15
9	10.52.232.16/31	10.52.232.16 – 10.52.232.17	10.52.232.17
10	10.52.232.18/31	10.52.232.18 – 10.52.232.19	10.52.232.19
11	10.52.232.20/31	10.52.232.20 – 10.52.232.21	10.52.232.21
12	10.52.232.22/31	10.52.232.22 – 10.52.232.23	10.52.232.23
13	10.52.232.24/31	10.52.232.24 – 10.52.232.25	10.52.232.25
14	10.52.232.26/31	10.52.232.26 – 10.52.232.27	10.52.232.27
15	10.52.232.28/31	10.52.232.28 – 10.52.232.29	10.52.232.29
16	10.52.232.30/31	10.52.232.30 – 10.52.232.31	10.52.232.31
17	10.52.232.32/31	10.52.232.32 – 10.52.232.33	10.52.232.33
18	10.52.232.34/31	10.52.232.34 – 10.52.232.35	10.52.232.35
19	10.52.232.36/31	10.52.232.36 – 10.52.232.37	10.52.232.37
20	10.52.232.38/31	10.52.232.38 – 10.52.232.39	10.52.232.39
21	10.52.232.40/31	10.52.232.40 – 10.52.232.41	10.52.232.41
22	10.52.232.42/31	10.52.232.42 – 10.52.232.43	10.52.232.43
23	10.52.232.44/31	10.52.232.44 – 10.52.232.45	10.52.232.45
24	10.52.232.46/31	10.52.232.46 – 10.52.232.47	10.52.232.47
25	10.52.232.48/31	10.52.232.48 – 10.52.232.49	10.52.232.49
26	10.52.232.50/31	10.52.232.50 – 10.52.232.51	10.52.232.51
27	10.52.232.52/31	10.52.232.52 – 10.52.232.53	10.52.232.53
28	10.52.232.54/31	10.52.232.54 – 10.52.232.55	10.52.232.55
29	10.52.232.56/31	10.52.232.56 – 10.52.232.57	10.52.232.57
30	10.52.232.58/31	10.52.232.58 – 10.52.232.59	10.52.232.59
31	10.52.232.60/31	10.52.232.60 – 10.52.232.61	10.52.232.61
32	10.52.232.62/31	10.52.232.62 – 10.52.232.63	10.52.232.63
33	10.52.232.64/31	10.52.232.64 – 10.52.232.65	10.52.232.65
34	10.52.232.66/31	10.52.232.66 – 10.52.232.67	10.52.232.67
35	10.52.232.68/31	10.52.232.68 – 10.52.232.69	10.52.232.69
36	10.52.232.70/31	10.52.232.70 – 10.52.232.71	10.52.232.71
37	10.52.232.72/31	10.52.232.72 – 10.52.232.73	10.52.232.73
38	10.52.232.74/31	10.52.232.74 – 10.52.232.75	10.52.232.75
39	10.52.232.76/31	10.52.232.76 – 10.52.232.77	10.52.232.77
40	10.52.232.78/31	10.52.232.78 – 10.52.232.79	10.52.232.79
41	10.52.232.80/31	10.52.232.80 – 10.52.232.81	10.52.232.81
42	10.52.232.82/31	10.52.232.82 – 10.52.232.83	10.52.232.83
43	10.52.232.84/31	10.52.232.84 – 10.52.232.85	10.52.232.85
44	10.52.232.86/31	10.52.232.86 – 10.52.232.87	10.52.232.87
45	10.52.232.88/31	10.52.232.88 – 10.52.232.89	10.52.232.89
46	10.52.232.90/31	10.52.232.90 – 10.52.232.91	10.52.232.91
47	10.52.232.92/31	10.52.232.92 – 10.52.232.93	10.52.232.93
48	10.52.232.94/31	10.52.232.94 – 10.52.232.95	10.52.232.95
49	10.52.232.96/31	10.52.232.96 – 10.52.232.97	10.52.232.97
50	10.52.232.98/31	10.52.232.98 – 10.52.232.99	10.52.232.99
51	10.52.232.100/31	10.52.232.100 – 10.52.232.101	10.52.232.101
52	10.52.232.102/31	10.52.232.102 – 10.52.232.103	10.52.232.103
53	10.52.232.104/31	10.52.232.104 – 10.52.232.105	10.52.232.105
54	10.52.232.106/31	10.52.232.106 – 10.52.232.107	10.52.232.107
55	10.52.232.108/31	10.52.232.108 – 10.52.232.109	10.52.232.109
56	10.52.232.110/31	10.52.232.110 – 10.52.232.111	10.52.232.111
57	10.52.232.112/31	10.52.232.112 – 10.52.232.113	10.52.232.113
58	10.52.232.114/31	10.52.232.114 – 10.52.232.115	10.52.232.115
59	10.52.232.116/31	10.52.232.116 – 10.52.232.117	10.52.232.117
60	10.52.232.118/31	10.52.232.118 – 10.52.232.119	10.52.232.119
61	10.52.232.120/31	10.52.232.120 – 10.52.232.121	10.52.232.121
62	10.52.232.122/31	10.52.232.122 – 10.52.232.123	10.52.232.123
63	10.52.232.124/31	10.52.232.124 – 10.52.232.125	10.52.232.125
64	10.52.232.126/31	10.52.232.126 – 10.52.232.127	10.52.232.127
65	10.52.232.128/31	10.52.232.128 – 10.52.232.129	10.52.232.129
66	10.52.232.130/31	10.52.232.130 – 10.52.232.131	10.52.232.131
67	10.52.232.132/31	10.52.232.132 – 10.52.232.133	10.52.232.133
68	10.52.232.134/31	10.52.232.134 – 10.52.232.135	10.52.232.135
69	10.52.232.136/31	10.52.232.136 – 10.52.232.137	10.52.232.137
70	10.52.232.138/31	10.52.232.138 – 10.52.232.139	10.52.232.139
71	10.52.232.140/31	10.52.232.140 – 10.52.232.141	10.52.232.141
72	10.52.232.142/31	10.52.232.142 – 10.52.232.143	10.52.232.143
73	10.52.232.144/31	10.52.232.144 – 10.52.232.145	10.52.232.145
74	10.52.232.146/31	10.52.232.146 – 10.52.232.147	10.52.232.147
75	10.52.232.148/31	10.52.232.148 – 10.52.232.149	10.52.232.149
76	10.52.232.150/31	10.52.232.150 – 10.52.232.151	10.52.232.151
77	10.52.232.152/31	10.52.232.152 – 10.52.232.153	10.52.232.153
78	10.52.232.154/31	10.52.232.154 – 10.52.232.155	10.52.232.155
79	10.52.232.156/31	10.52.232.156 – 10.52.232.157	10.52.232.157
80	10.52.232.158/31	10.52.232.158 – 10.52.232.159	10.52.232.159
81	10.52.232.160/31	10.52.232.160 – 10.52.232.161	10.52.232.161
82	10.52.232.162/31	10.52.232.162 – 10.52.232.163	10.52.232.163
83	10.52.232.164/31	10.52.232.164 – 10.52.232.165	10.52.232.165
84	10.52.232.166/31	10.52.232.166 – 10.52.232.167	10.52.232.167
85	10.52.232.168/31	10.52.232.168 – 10.52.232.169	10.52.232.169
86	10.52.232.170/31	10.52.232.170 – 10.52.232.171	10.52.232.171
87	10.52.232.172/31	10.52.232.172 – 10.52.232.173	10.52.232.173
88	10.52.232.174/31	10.52.232.174 – 10.52.232.175	10.52.232.175
89	10.52.232.176/31	10.52.232.176 – 10.52.232.177	10.52.232.177
90	10.52.232.178/31	10.52.232.178 – 10.52.232.179	10.52.232.179
91	10.52.232.180/31	10.52.232.180 – 10.52.232.181	10.52.232.181
92	10.52.232.182/31	10.52.232.182 – 10.52.232.183	10.52.232.183
93	10.52.232.184/31	10.52.232.184 – 10.52.232.185	10.52.232.185
94	10.52.232.186/31	10.52.232.186 – 10.52.232.187	10.52.232.187
95	10.52.232.188/31	10.52.232.188 – 10.52.232.189	10.52.232.189
96	10.52.232.190/31	10.52.232.190 – 10.52.232.191	10.52.232.191
97	10.52.232.192/31	10.52.232.192 – 10.52.232.193	10.52.232.193
98	10.52.232.194/31	10.52.232.194 – 10.52.232.195	10.52.232.195
99	10.52.232.196/31	10.52.232.196 – 10.52.232.197	10.52.232.197
100	10.52.232.198/31	10.52.232.198 – 10.52.232.199	10.52.232.199
101	10.52.232.200/31	10.52.232.200 – 10.52.232.201	10.52.232.201
102	10.52.232.202/31	10.52.232.202 – 10.52.232.203	10.52.232.203
103	10.52.232.204/31	10.52.232.204 – 10.52.232.205	10.52.232.205
104	10.52.232.206/31	10.52.232.206 – 10.52.232.207	10.52.232.207
105	10.52.232.208/31	10.52.232.208 – 10.52.232.209	10.52.232.209
106	10.52.232.210/31	10.52.232.210 – 10.52.232.211	10.52.232.211
107	10.52.232.212/31	10.52.232.212 – 10.52.232.213	10.52.232.213
108	10.52.232.214/31	10.52.232.214 – 10.52.232.215	10.52.232.215
109	10.52.232.216/31	10.52.232.216 – 10.52.232.217	10.52.232.217
110	10.52.232.218/31	10.52.232.218 – 10.52.232.219	10.52.232.219
111	10.52.232.220/31	10.52.232.220 – 10.52.232.221	10.52.232.221
112	10.52.232.222/31	10.52.232.222 – 10.52.232.223	10.52.232.223
113	10.52.232.224/31	10.52.232.224 – 10.52.232.225	10.52.232.225
114	10.52.232.226/31	10.52.232.226 – 10.52.232.227	10.52.232.227
115	10.52.232.228/31	10.52.232.228 – 10.52.232.229	10.52.232.229
116	10.52.232.230/31	10.52.232.230 – 10.52.232.231	10.52.232.231
117	10.52.232.232/31	10.52.232.232 – 10.52.232.233	10.52.232.233
118	10.52.232.234/31	10.52.232.234 – 10.52.232.235	10.52.232.235
119	10.52.232.236/31	10.52.232.236 – 10.52.232.237	10.52.232.237
120	10.52.232.238/31	10.52.232.238 – 10.52.232.239	10.52.232.239
121	10.52.232.240/31	10.52.232.240 – 10.52.232.241	10.52.232.241
122	10.52.232.242/31	10.52.232.242 – 10.52.232.243	10.52.232.243
123	10.52.232.244/31	10.52.232.244 – 10.52.232.245	10.52.232.245
124	10.52.232.246/31	10.52.232.246 – 10.52.232.247	10.52.232.247
125	10.52.232.248/31	10.52.232.248 – 10.52.232.249	10.52.232.249
126	10.52.232.250/31	10.52.232.250 – 10.52.232.251	10.52.232.251
127	10.52.232.252/31	10.52.232.252 – 10.52.232.253	10.52.232.253
128	10.52.232.254/31	10.52.232.254 – 10.52.232.255	10.52.232.255

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 /24
/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	-
/23	255.255.254.0	512	510	-
/24	255.255.255.0	256	254	1
/25	255.255.255.128	128	126	2 split →
/26	255.255.255.192	64	62	4 split →
/27	255.255.255.224	32	30	8 split →
/28	255.255.255.240	16	14	16 split →
/29	255.255.255.248	8	6	32 split →
/30	255.255.255.252	4	2	64 split →
/31	255.255.255.254	2	2	128 split →
/32	255.255.255.255	1	1	256 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 →