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)10.3.188.0/22

network10.3.188.0/22

broadcast10.3.191.255

first host10.3.188.1

last host10.3.191.254

subnet mask255.255.252.0

wildcard0.0.3.255

addresses1,024

usable hosts1,022

classA

ipcalc 10.3.188.0/22

address00001010.00000011.10111100.00000000

subnet mask11111111.11111111.11111100.00000000

network00001010.00000011.10111100.00000000

broadcast00001010.00000011.10111111.11111111

green = network part, grey = host part

hex0x0a03bc00

decimal168016896

reverse dns0.188.3.10.in-addr.arpa

ipv4-mapped::ffff:a03:bc00

/22 split into /32 · 1,024 subnets

close ×

#	network	host range	broadcast
1	10.3.188.0/32	10.3.188.0 – 10.3.188.0	10.3.188.0
2	10.3.188.1/32	10.3.188.1 – 10.3.188.1	10.3.188.1
3	10.3.188.2/32	10.3.188.2 – 10.3.188.2	10.3.188.2
4	10.3.188.3/32	10.3.188.3 – 10.3.188.3	10.3.188.3
5	10.3.188.4/32	10.3.188.4 – 10.3.188.4	10.3.188.4
6	10.3.188.5/32	10.3.188.5 – 10.3.188.5	10.3.188.5
7	10.3.188.6/32	10.3.188.6 – 10.3.188.6	10.3.188.6
8	10.3.188.7/32	10.3.188.7 – 10.3.188.7	10.3.188.7
9	10.3.188.8/32	10.3.188.8 – 10.3.188.8	10.3.188.8
10	10.3.188.9/32	10.3.188.9 – 10.3.188.9	10.3.188.9
11	10.3.188.10/32	10.3.188.10 – 10.3.188.10	10.3.188.10
12	10.3.188.11/32	10.3.188.11 – 10.3.188.11	10.3.188.11
13	10.3.188.12/32	10.3.188.12 – 10.3.188.12	10.3.188.12
14	10.3.188.13/32	10.3.188.13 – 10.3.188.13	10.3.188.13
15	10.3.188.14/32	10.3.188.14 – 10.3.188.14	10.3.188.14
16	10.3.188.15/32	10.3.188.15 – 10.3.188.15	10.3.188.15
17	10.3.188.16/32	10.3.188.16 – 10.3.188.16	10.3.188.16
18	10.3.188.17/32	10.3.188.17 – 10.3.188.17	10.3.188.17
19	10.3.188.18/32	10.3.188.18 – 10.3.188.18	10.3.188.18
20	10.3.188.19/32	10.3.188.19 – 10.3.188.19	10.3.188.19
21	10.3.188.20/32	10.3.188.20 – 10.3.188.20	10.3.188.20
22	10.3.188.21/32	10.3.188.21 – 10.3.188.21	10.3.188.21
23	10.3.188.22/32	10.3.188.22 – 10.3.188.22	10.3.188.22
24	10.3.188.23/32	10.3.188.23 – 10.3.188.23	10.3.188.23
25	10.3.188.24/32	10.3.188.24 – 10.3.188.24	10.3.188.24
26	10.3.188.25/32	10.3.188.25 – 10.3.188.25	10.3.188.25
27	10.3.188.26/32	10.3.188.26 – 10.3.188.26	10.3.188.26
28	10.3.188.27/32	10.3.188.27 – 10.3.188.27	10.3.188.27
29	10.3.188.28/32	10.3.188.28 – 10.3.188.28	10.3.188.28
30	10.3.188.29/32	10.3.188.29 – 10.3.188.29	10.3.188.29
31	10.3.188.30/32	10.3.188.30 – 10.3.188.30	10.3.188.30
32	10.3.188.31/32	10.3.188.31 – 10.3.188.31	10.3.188.31
33	10.3.188.32/32	10.3.188.32 – 10.3.188.32	10.3.188.32
34	10.3.188.33/32	10.3.188.33 – 10.3.188.33	10.3.188.33
35	10.3.188.34/32	10.3.188.34 – 10.3.188.34	10.3.188.34
36	10.3.188.35/32	10.3.188.35 – 10.3.188.35	10.3.188.35
37	10.3.188.36/32	10.3.188.36 – 10.3.188.36	10.3.188.36
38	10.3.188.37/32	10.3.188.37 – 10.3.188.37	10.3.188.37
39	10.3.188.38/32	10.3.188.38 – 10.3.188.38	10.3.188.38
40	10.3.188.39/32	10.3.188.39 – 10.3.188.39	10.3.188.39
41	10.3.188.40/32	10.3.188.40 – 10.3.188.40	10.3.188.40
42	10.3.188.41/32	10.3.188.41 – 10.3.188.41	10.3.188.41
43	10.3.188.42/32	10.3.188.42 – 10.3.188.42	10.3.188.42
44	10.3.188.43/32	10.3.188.43 – 10.3.188.43	10.3.188.43
45	10.3.188.44/32	10.3.188.44 – 10.3.188.44	10.3.188.44
46	10.3.188.45/32	10.3.188.45 – 10.3.188.45	10.3.188.45
47	10.3.188.46/32	10.3.188.46 – 10.3.188.46	10.3.188.46
48	10.3.188.47/32	10.3.188.47 – 10.3.188.47	10.3.188.47
49	10.3.188.48/32	10.3.188.48 – 10.3.188.48	10.3.188.48
50	10.3.188.49/32	10.3.188.49 – 10.3.188.49	10.3.188.49
51	10.3.188.50/32	10.3.188.50 – 10.3.188.50	10.3.188.50
52	10.3.188.51/32	10.3.188.51 – 10.3.188.51	10.3.188.51
53	10.3.188.52/32	10.3.188.52 – 10.3.188.52	10.3.188.52
54	10.3.188.53/32	10.3.188.53 – 10.3.188.53	10.3.188.53
55	10.3.188.54/32	10.3.188.54 – 10.3.188.54	10.3.188.54
56	10.3.188.55/32	10.3.188.55 – 10.3.188.55	10.3.188.55
57	10.3.188.56/32	10.3.188.56 – 10.3.188.56	10.3.188.56
58	10.3.188.57/32	10.3.188.57 – 10.3.188.57	10.3.188.57
59	10.3.188.58/32	10.3.188.58 – 10.3.188.58	10.3.188.58
60	10.3.188.59/32	10.3.188.59 – 10.3.188.59	10.3.188.59
61	10.3.188.60/32	10.3.188.60 – 10.3.188.60	10.3.188.60
62	10.3.188.61/32	10.3.188.61 – 10.3.188.61	10.3.188.61
63	10.3.188.62/32	10.3.188.62 – 10.3.188.62	10.3.188.62
64	10.3.188.63/32	10.3.188.63 – 10.3.188.63	10.3.188.63
65	10.3.188.64/32	10.3.188.64 – 10.3.188.64	10.3.188.64
66	10.3.188.65/32	10.3.188.65 – 10.3.188.65	10.3.188.65
67	10.3.188.66/32	10.3.188.66 – 10.3.188.66	10.3.188.66
68	10.3.188.67/32	10.3.188.67 – 10.3.188.67	10.3.188.67
69	10.3.188.68/32	10.3.188.68 – 10.3.188.68	10.3.188.68
70	10.3.188.69/32	10.3.188.69 – 10.3.188.69	10.3.188.69
71	10.3.188.70/32	10.3.188.70 – 10.3.188.70	10.3.188.70
72	10.3.188.71/32	10.3.188.71 – 10.3.188.71	10.3.188.71
73	10.3.188.72/32	10.3.188.72 – 10.3.188.72	10.3.188.72
74	10.3.188.73/32	10.3.188.73 – 10.3.188.73	10.3.188.73
75	10.3.188.74/32	10.3.188.74 – 10.3.188.74	10.3.188.74
76	10.3.188.75/32	10.3.188.75 – 10.3.188.75	10.3.188.75
77	10.3.188.76/32	10.3.188.76 – 10.3.188.76	10.3.188.76
78	10.3.188.77/32	10.3.188.77 – 10.3.188.77	10.3.188.77
79	10.3.188.78/32	10.3.188.78 – 10.3.188.78	10.3.188.78
80	10.3.188.79/32	10.3.188.79 – 10.3.188.79	10.3.188.79
81	10.3.188.80/32	10.3.188.80 – 10.3.188.80	10.3.188.80
82	10.3.188.81/32	10.3.188.81 – 10.3.188.81	10.3.188.81
83	10.3.188.82/32	10.3.188.82 – 10.3.188.82	10.3.188.82
84	10.3.188.83/32	10.3.188.83 – 10.3.188.83	10.3.188.83
85	10.3.188.84/32	10.3.188.84 – 10.3.188.84	10.3.188.84
86	10.3.188.85/32	10.3.188.85 – 10.3.188.85	10.3.188.85
87	10.3.188.86/32	10.3.188.86 – 10.3.188.86	10.3.188.86
88	10.3.188.87/32	10.3.188.87 – 10.3.188.87	10.3.188.87
89	10.3.188.88/32	10.3.188.88 – 10.3.188.88	10.3.188.88
90	10.3.188.89/32	10.3.188.89 – 10.3.188.89	10.3.188.89
91	10.3.188.90/32	10.3.188.90 – 10.3.188.90	10.3.188.90
92	10.3.188.91/32	10.3.188.91 – 10.3.188.91	10.3.188.91
93	10.3.188.92/32	10.3.188.92 – 10.3.188.92	10.3.188.92
94	10.3.188.93/32	10.3.188.93 – 10.3.188.93	10.3.188.93
95	10.3.188.94/32	10.3.188.94 – 10.3.188.94	10.3.188.94
96	10.3.188.95/32	10.3.188.95 – 10.3.188.95	10.3.188.95
97	10.3.188.96/32	10.3.188.96 – 10.3.188.96	10.3.188.96
98	10.3.188.97/32	10.3.188.97 – 10.3.188.97	10.3.188.97
99	10.3.188.98/32	10.3.188.98 – 10.3.188.98	10.3.188.98
100	10.3.188.99/32	10.3.188.99 – 10.3.188.99	10.3.188.99
101	10.3.188.100/32	10.3.188.100 – 10.3.188.100	10.3.188.100
102	10.3.188.101/32	10.3.188.101 – 10.3.188.101	10.3.188.101
103	10.3.188.102/32	10.3.188.102 – 10.3.188.102	10.3.188.102
104	10.3.188.103/32	10.3.188.103 – 10.3.188.103	10.3.188.103
105	10.3.188.104/32	10.3.188.104 – 10.3.188.104	10.3.188.104
106	10.3.188.105/32	10.3.188.105 – 10.3.188.105	10.3.188.105
107	10.3.188.106/32	10.3.188.106 – 10.3.188.106	10.3.188.106
108	10.3.188.107/32	10.3.188.107 – 10.3.188.107	10.3.188.107
109	10.3.188.108/32	10.3.188.108 – 10.3.188.108	10.3.188.108
110	10.3.188.109/32	10.3.188.109 – 10.3.188.109	10.3.188.109
111	10.3.188.110/32	10.3.188.110 – 10.3.188.110	10.3.188.110
112	10.3.188.111/32	10.3.188.111 – 10.3.188.111	10.3.188.111
113	10.3.188.112/32	10.3.188.112 – 10.3.188.112	10.3.188.112
114	10.3.188.113/32	10.3.188.113 – 10.3.188.113	10.3.188.113
115	10.3.188.114/32	10.3.188.114 – 10.3.188.114	10.3.188.114
116	10.3.188.115/32	10.3.188.115 – 10.3.188.115	10.3.188.115
117	10.3.188.116/32	10.3.188.116 – 10.3.188.116	10.3.188.116
118	10.3.188.117/32	10.3.188.117 – 10.3.188.117	10.3.188.117
119	10.3.188.118/32	10.3.188.118 – 10.3.188.118	10.3.188.118
120	10.3.188.119/32	10.3.188.119 – 10.3.188.119	10.3.188.119
121	10.3.188.120/32	10.3.188.120 – 10.3.188.120	10.3.188.120
122	10.3.188.121/32	10.3.188.121 – 10.3.188.121	10.3.188.121
123	10.3.188.122/32	10.3.188.122 – 10.3.188.122	10.3.188.122
124	10.3.188.123/32	10.3.188.123 – 10.3.188.123	10.3.188.123
125	10.3.188.124/32	10.3.188.124 – 10.3.188.124	10.3.188.124
126	10.3.188.125/32	10.3.188.125 – 10.3.188.125	10.3.188.125
127	10.3.188.126/32	10.3.188.126 – 10.3.188.126	10.3.188.126
128	10.3.188.127/32	10.3.188.127 – 10.3.188.127	10.3.188.127
129	10.3.188.128/32	10.3.188.128 – 10.3.188.128	10.3.188.128
130	10.3.188.129/32	10.3.188.129 – 10.3.188.129	10.3.188.129
131	10.3.188.130/32	10.3.188.130 – 10.3.188.130	10.3.188.130
132	10.3.188.131/32	10.3.188.131 – 10.3.188.131	10.3.188.131
133	10.3.188.132/32	10.3.188.132 – 10.3.188.132	10.3.188.132
134	10.3.188.133/32	10.3.188.133 – 10.3.188.133	10.3.188.133
135	10.3.188.134/32	10.3.188.134 – 10.3.188.134	10.3.188.134
136	10.3.188.135/32	10.3.188.135 – 10.3.188.135	10.3.188.135
137	10.3.188.136/32	10.3.188.136 – 10.3.188.136	10.3.188.136
138	10.3.188.137/32	10.3.188.137 – 10.3.188.137	10.3.188.137
139	10.3.188.138/32	10.3.188.138 – 10.3.188.138	10.3.188.138
140	10.3.188.139/32	10.3.188.139 – 10.3.188.139	10.3.188.139
141	10.3.188.140/32	10.3.188.140 – 10.3.188.140	10.3.188.140
142	10.3.188.141/32	10.3.188.141 – 10.3.188.141	10.3.188.141
143	10.3.188.142/32	10.3.188.142 – 10.3.188.142	10.3.188.142
144	10.3.188.143/32	10.3.188.143 – 10.3.188.143	10.3.188.143
145	10.3.188.144/32	10.3.188.144 – 10.3.188.144	10.3.188.144
146	10.3.188.145/32	10.3.188.145 – 10.3.188.145	10.3.188.145
147	10.3.188.146/32	10.3.188.146 – 10.3.188.146	10.3.188.146
148	10.3.188.147/32	10.3.188.147 – 10.3.188.147	10.3.188.147
149	10.3.188.148/32	10.3.188.148 – 10.3.188.148	10.3.188.148
150	10.3.188.149/32	10.3.188.149 – 10.3.188.149	10.3.188.149
151	10.3.188.150/32	10.3.188.150 – 10.3.188.150	10.3.188.150
152	10.3.188.151/32	10.3.188.151 – 10.3.188.151	10.3.188.151
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156	10.3.188.155/32	10.3.188.155 – 10.3.188.155	10.3.188.155
157	10.3.188.156/32	10.3.188.156 – 10.3.188.156	10.3.188.156
158	10.3.188.157/32	10.3.188.157 – 10.3.188.157	10.3.188.157
159	10.3.188.158/32	10.3.188.158 – 10.3.188.158	10.3.188.158
160	10.3.188.159/32	10.3.188.159 – 10.3.188.159	10.3.188.159
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210	10.3.188.209/32	10.3.188.209 – 10.3.188.209	10.3.188.209
211	10.3.188.210/32	10.3.188.210 – 10.3.188.210	10.3.188.210
212	10.3.188.211/32	10.3.188.211 – 10.3.188.211	10.3.188.211
213	10.3.188.212/32	10.3.188.212 – 10.3.188.212	10.3.188.212
214	10.3.188.213/32	10.3.188.213 – 10.3.188.213	10.3.188.213
215	10.3.188.214/32	10.3.188.214 – 10.3.188.214	10.3.188.214
216	10.3.188.215/32	10.3.188.215 – 10.3.188.215	10.3.188.215
217	10.3.188.216/32	10.3.188.216 – 10.3.188.216	10.3.188.216
218	10.3.188.217/32	10.3.188.217 – 10.3.188.217	10.3.188.217
219	10.3.188.218/32	10.3.188.218 – 10.3.188.218	10.3.188.218
220	10.3.188.219/32	10.3.188.219 – 10.3.188.219	10.3.188.219
221	10.3.188.220/32	10.3.188.220 – 10.3.188.220	10.3.188.220
222	10.3.188.221/32	10.3.188.221 – 10.3.188.221	10.3.188.221
223	10.3.188.222/32	10.3.188.222 – 10.3.188.222	10.3.188.222
224	10.3.188.223/32	10.3.188.223 – 10.3.188.223	10.3.188.223
225	10.3.188.224/32	10.3.188.224 – 10.3.188.224	10.3.188.224
226	10.3.188.225/32	10.3.188.225 – 10.3.188.225	10.3.188.225
227	10.3.188.226/32	10.3.188.226 – 10.3.188.226	10.3.188.226
228	10.3.188.227/32	10.3.188.227 – 10.3.188.227	10.3.188.227
229	10.3.188.228/32	10.3.188.228 – 10.3.188.228	10.3.188.228
230	10.3.188.229/32	10.3.188.229 – 10.3.188.229	10.3.188.229
231	10.3.188.230/32	10.3.188.230 – 10.3.188.230	10.3.188.230
232	10.3.188.231/32	10.3.188.231 – 10.3.188.231	10.3.188.231
233	10.3.188.232/32	10.3.188.232 – 10.3.188.232	10.3.188.232
234	10.3.188.233/32	10.3.188.233 – 10.3.188.233	10.3.188.233
235	10.3.188.234/32	10.3.188.234 – 10.3.188.234	10.3.188.234
236	10.3.188.235/32	10.3.188.235 – 10.3.188.235	10.3.188.235
237	10.3.188.236/32	10.3.188.236 – 10.3.188.236	10.3.188.236
238	10.3.188.237/32	10.3.188.237 – 10.3.188.237	10.3.188.237
239	10.3.188.238/32	10.3.188.238 – 10.3.188.238	10.3.188.238
240	10.3.188.239/32	10.3.188.239 – 10.3.188.239	10.3.188.239
241	10.3.188.240/32	10.3.188.240 – 10.3.188.240	10.3.188.240
242	10.3.188.241/32	10.3.188.241 – 10.3.188.241	10.3.188.241
243	10.3.188.242/32	10.3.188.242 – 10.3.188.242	10.3.188.242
244	10.3.188.243/32	10.3.188.243 – 10.3.188.243	10.3.188.243
245	10.3.188.244/32	10.3.188.244 – 10.3.188.244	10.3.188.244
246	10.3.188.245/32	10.3.188.245 – 10.3.188.245	10.3.188.245
247	10.3.188.246/32	10.3.188.246 – 10.3.188.246	10.3.188.246
248	10.3.188.247/32	10.3.188.247 – 10.3.188.247	10.3.188.247
249	10.3.188.248/32	10.3.188.248 – 10.3.188.248	10.3.188.248
250	10.3.188.249/32	10.3.188.249 – 10.3.188.249	10.3.188.249
251	10.3.188.250/32	10.3.188.250 – 10.3.188.250	10.3.188.250
252	10.3.188.251/32	10.3.188.251 – 10.3.188.251	10.3.188.251
253	10.3.188.252/32	10.3.188.252 – 10.3.188.252	10.3.188.252
254	10.3.188.253/32	10.3.188.253 – 10.3.188.253	10.3.188.253
255	10.3.188.254/32	10.3.188.254 – 10.3.188.254	10.3.188.254
256	10.3.188.255/32	10.3.188.255 – 10.3.188.255	10.3.188.255

showing 256 of 1,024

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 →