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)10.2.108.0/22

network10.2.108.0/22

broadcast10.2.111.255

first host10.2.108.1

last host10.2.111.254

subnet mask255.255.252.0

wildcard0.0.3.255

addresses1,024

usable hosts1,022

classA

ipcalc 10.2.108.0/22

address00001010.00000010.01101100.00000000

subnet mask11111111.11111111.11111100.00000000

network00001010.00000010.01101100.00000000

broadcast00001010.00000010.01101111.11111111

green = network part, grey = host part

hex0x0a026c00

decimal167930880

reverse dns0.108.2.10.in-addr.arpa

ipv4-mapped::ffff:a02:6c00

/22 split into /32 · 1,024 subnets

close ×

#	network	host range	broadcast
1	10.2.108.0/32	10.2.108.0 – 10.2.108.0	10.2.108.0
2	10.2.108.1/32	10.2.108.1 – 10.2.108.1	10.2.108.1
3	10.2.108.2/32	10.2.108.2 – 10.2.108.2	10.2.108.2
4	10.2.108.3/32	10.2.108.3 – 10.2.108.3	10.2.108.3
5	10.2.108.4/32	10.2.108.4 – 10.2.108.4	10.2.108.4
6	10.2.108.5/32	10.2.108.5 – 10.2.108.5	10.2.108.5
7	10.2.108.6/32	10.2.108.6 – 10.2.108.6	10.2.108.6
8	10.2.108.7/32	10.2.108.7 – 10.2.108.7	10.2.108.7
9	10.2.108.8/32	10.2.108.8 – 10.2.108.8	10.2.108.8
10	10.2.108.9/32	10.2.108.9 – 10.2.108.9	10.2.108.9
11	10.2.108.10/32	10.2.108.10 – 10.2.108.10	10.2.108.10
12	10.2.108.11/32	10.2.108.11 – 10.2.108.11	10.2.108.11
13	10.2.108.12/32	10.2.108.12 – 10.2.108.12	10.2.108.12
14	10.2.108.13/32	10.2.108.13 – 10.2.108.13	10.2.108.13
15	10.2.108.14/32	10.2.108.14 – 10.2.108.14	10.2.108.14
16	10.2.108.15/32	10.2.108.15 – 10.2.108.15	10.2.108.15
17	10.2.108.16/32	10.2.108.16 – 10.2.108.16	10.2.108.16
18	10.2.108.17/32	10.2.108.17 – 10.2.108.17	10.2.108.17
19	10.2.108.18/32	10.2.108.18 – 10.2.108.18	10.2.108.18
20	10.2.108.19/32	10.2.108.19 – 10.2.108.19	10.2.108.19
21	10.2.108.20/32	10.2.108.20 – 10.2.108.20	10.2.108.20
22	10.2.108.21/32	10.2.108.21 – 10.2.108.21	10.2.108.21
23	10.2.108.22/32	10.2.108.22 – 10.2.108.22	10.2.108.22
24	10.2.108.23/32	10.2.108.23 – 10.2.108.23	10.2.108.23
25	10.2.108.24/32	10.2.108.24 – 10.2.108.24	10.2.108.24
26	10.2.108.25/32	10.2.108.25 – 10.2.108.25	10.2.108.25
27	10.2.108.26/32	10.2.108.26 – 10.2.108.26	10.2.108.26
28	10.2.108.27/32	10.2.108.27 – 10.2.108.27	10.2.108.27
29	10.2.108.28/32	10.2.108.28 – 10.2.108.28	10.2.108.28
30	10.2.108.29/32	10.2.108.29 – 10.2.108.29	10.2.108.29
31	10.2.108.30/32	10.2.108.30 – 10.2.108.30	10.2.108.30
32	10.2.108.31/32	10.2.108.31 – 10.2.108.31	10.2.108.31
33	10.2.108.32/32	10.2.108.32 – 10.2.108.32	10.2.108.32
34	10.2.108.33/32	10.2.108.33 – 10.2.108.33	10.2.108.33
35	10.2.108.34/32	10.2.108.34 – 10.2.108.34	10.2.108.34
36	10.2.108.35/32	10.2.108.35 – 10.2.108.35	10.2.108.35
37	10.2.108.36/32	10.2.108.36 – 10.2.108.36	10.2.108.36
38	10.2.108.37/32	10.2.108.37 – 10.2.108.37	10.2.108.37
39	10.2.108.38/32	10.2.108.38 – 10.2.108.38	10.2.108.38
40	10.2.108.39/32	10.2.108.39 – 10.2.108.39	10.2.108.39
41	10.2.108.40/32	10.2.108.40 – 10.2.108.40	10.2.108.40
42	10.2.108.41/32	10.2.108.41 – 10.2.108.41	10.2.108.41
43	10.2.108.42/32	10.2.108.42 – 10.2.108.42	10.2.108.42
44	10.2.108.43/32	10.2.108.43 – 10.2.108.43	10.2.108.43
45	10.2.108.44/32	10.2.108.44 – 10.2.108.44	10.2.108.44
46	10.2.108.45/32	10.2.108.45 – 10.2.108.45	10.2.108.45
47	10.2.108.46/32	10.2.108.46 – 10.2.108.46	10.2.108.46
48	10.2.108.47/32	10.2.108.47 – 10.2.108.47	10.2.108.47
49	10.2.108.48/32	10.2.108.48 – 10.2.108.48	10.2.108.48
50	10.2.108.49/32	10.2.108.49 – 10.2.108.49	10.2.108.49
51	10.2.108.50/32	10.2.108.50 – 10.2.108.50	10.2.108.50
52	10.2.108.51/32	10.2.108.51 – 10.2.108.51	10.2.108.51
53	10.2.108.52/32	10.2.108.52 – 10.2.108.52	10.2.108.52
54	10.2.108.53/32	10.2.108.53 – 10.2.108.53	10.2.108.53
55	10.2.108.54/32	10.2.108.54 – 10.2.108.54	10.2.108.54
56	10.2.108.55/32	10.2.108.55 – 10.2.108.55	10.2.108.55
57	10.2.108.56/32	10.2.108.56 – 10.2.108.56	10.2.108.56
58	10.2.108.57/32	10.2.108.57 – 10.2.108.57	10.2.108.57
59	10.2.108.58/32	10.2.108.58 – 10.2.108.58	10.2.108.58
60	10.2.108.59/32	10.2.108.59 – 10.2.108.59	10.2.108.59
61	10.2.108.60/32	10.2.108.60 – 10.2.108.60	10.2.108.60
62	10.2.108.61/32	10.2.108.61 – 10.2.108.61	10.2.108.61
63	10.2.108.62/32	10.2.108.62 – 10.2.108.62	10.2.108.62
64	10.2.108.63/32	10.2.108.63 – 10.2.108.63	10.2.108.63
65	10.2.108.64/32	10.2.108.64 – 10.2.108.64	10.2.108.64
66	10.2.108.65/32	10.2.108.65 – 10.2.108.65	10.2.108.65
67	10.2.108.66/32	10.2.108.66 – 10.2.108.66	10.2.108.66
68	10.2.108.67/32	10.2.108.67 – 10.2.108.67	10.2.108.67
69	10.2.108.68/32	10.2.108.68 – 10.2.108.68	10.2.108.68
70	10.2.108.69/32	10.2.108.69 – 10.2.108.69	10.2.108.69
71	10.2.108.70/32	10.2.108.70 – 10.2.108.70	10.2.108.70
72	10.2.108.71/32	10.2.108.71 – 10.2.108.71	10.2.108.71
73	10.2.108.72/32	10.2.108.72 – 10.2.108.72	10.2.108.72
74	10.2.108.73/32	10.2.108.73 – 10.2.108.73	10.2.108.73
75	10.2.108.74/32	10.2.108.74 – 10.2.108.74	10.2.108.74
76	10.2.108.75/32	10.2.108.75 – 10.2.108.75	10.2.108.75
77	10.2.108.76/32	10.2.108.76 – 10.2.108.76	10.2.108.76
78	10.2.108.77/32	10.2.108.77 – 10.2.108.77	10.2.108.77
79	10.2.108.78/32	10.2.108.78 – 10.2.108.78	10.2.108.78
80	10.2.108.79/32	10.2.108.79 – 10.2.108.79	10.2.108.79
81	10.2.108.80/32	10.2.108.80 – 10.2.108.80	10.2.108.80
82	10.2.108.81/32	10.2.108.81 – 10.2.108.81	10.2.108.81
83	10.2.108.82/32	10.2.108.82 – 10.2.108.82	10.2.108.82
84	10.2.108.83/32	10.2.108.83 – 10.2.108.83	10.2.108.83
85	10.2.108.84/32	10.2.108.84 – 10.2.108.84	10.2.108.84
86	10.2.108.85/32	10.2.108.85 – 10.2.108.85	10.2.108.85
87	10.2.108.86/32	10.2.108.86 – 10.2.108.86	10.2.108.86
88	10.2.108.87/32	10.2.108.87 – 10.2.108.87	10.2.108.87
89	10.2.108.88/32	10.2.108.88 – 10.2.108.88	10.2.108.88
90	10.2.108.89/32	10.2.108.89 – 10.2.108.89	10.2.108.89
91	10.2.108.90/32	10.2.108.90 – 10.2.108.90	10.2.108.90
92	10.2.108.91/32	10.2.108.91 – 10.2.108.91	10.2.108.91
93	10.2.108.92/32	10.2.108.92 – 10.2.108.92	10.2.108.92
94	10.2.108.93/32	10.2.108.93 – 10.2.108.93	10.2.108.93
95	10.2.108.94/32	10.2.108.94 – 10.2.108.94	10.2.108.94
96	10.2.108.95/32	10.2.108.95 – 10.2.108.95	10.2.108.95
97	10.2.108.96/32	10.2.108.96 – 10.2.108.96	10.2.108.96
98	10.2.108.97/32	10.2.108.97 – 10.2.108.97	10.2.108.97
99	10.2.108.98/32	10.2.108.98 – 10.2.108.98	10.2.108.98
100	10.2.108.99/32	10.2.108.99 – 10.2.108.99	10.2.108.99
101	10.2.108.100/32	10.2.108.100 – 10.2.108.100	10.2.108.100
102	10.2.108.101/32	10.2.108.101 – 10.2.108.101	10.2.108.101
103	10.2.108.102/32	10.2.108.102 – 10.2.108.102	10.2.108.102
104	10.2.108.103/32	10.2.108.103 – 10.2.108.103	10.2.108.103
105	10.2.108.104/32	10.2.108.104 – 10.2.108.104	10.2.108.104
106	10.2.108.105/32	10.2.108.105 – 10.2.108.105	10.2.108.105
107	10.2.108.106/32	10.2.108.106 – 10.2.108.106	10.2.108.106
108	10.2.108.107/32	10.2.108.107 – 10.2.108.107	10.2.108.107
109	10.2.108.108/32	10.2.108.108 – 10.2.108.108	10.2.108.108
110	10.2.108.109/32	10.2.108.109 – 10.2.108.109	10.2.108.109
111	10.2.108.110/32	10.2.108.110 – 10.2.108.110	10.2.108.110
112	10.2.108.111/32	10.2.108.111 – 10.2.108.111	10.2.108.111
113	10.2.108.112/32	10.2.108.112 – 10.2.108.112	10.2.108.112
114	10.2.108.113/32	10.2.108.113 – 10.2.108.113	10.2.108.113
115	10.2.108.114/32	10.2.108.114 – 10.2.108.114	10.2.108.114
116	10.2.108.115/32	10.2.108.115 – 10.2.108.115	10.2.108.115
117	10.2.108.116/32	10.2.108.116 – 10.2.108.116	10.2.108.116
118	10.2.108.117/32	10.2.108.117 – 10.2.108.117	10.2.108.117
119	10.2.108.118/32	10.2.108.118 – 10.2.108.118	10.2.108.118
120	10.2.108.119/32	10.2.108.119 – 10.2.108.119	10.2.108.119
121	10.2.108.120/32	10.2.108.120 – 10.2.108.120	10.2.108.120
122	10.2.108.121/32	10.2.108.121 – 10.2.108.121	10.2.108.121
123	10.2.108.122/32	10.2.108.122 – 10.2.108.122	10.2.108.122
124	10.2.108.123/32	10.2.108.123 – 10.2.108.123	10.2.108.123
125	10.2.108.124/32	10.2.108.124 – 10.2.108.124	10.2.108.124
126	10.2.108.125/32	10.2.108.125 – 10.2.108.125	10.2.108.125
127	10.2.108.126/32	10.2.108.126 – 10.2.108.126	10.2.108.126
128	10.2.108.127/32	10.2.108.127 – 10.2.108.127	10.2.108.127
129	10.2.108.128/32	10.2.108.128 – 10.2.108.128	10.2.108.128
130	10.2.108.129/32	10.2.108.129 – 10.2.108.129	10.2.108.129
131	10.2.108.130/32	10.2.108.130 – 10.2.108.130	10.2.108.130
132	10.2.108.131/32	10.2.108.131 – 10.2.108.131	10.2.108.131
133	10.2.108.132/32	10.2.108.132 – 10.2.108.132	10.2.108.132
134	10.2.108.133/32	10.2.108.133 – 10.2.108.133	10.2.108.133
135	10.2.108.134/32	10.2.108.134 – 10.2.108.134	10.2.108.134
136	10.2.108.135/32	10.2.108.135 – 10.2.108.135	10.2.108.135
137	10.2.108.136/32	10.2.108.136 – 10.2.108.136	10.2.108.136
138	10.2.108.137/32	10.2.108.137 – 10.2.108.137	10.2.108.137
139	10.2.108.138/32	10.2.108.138 – 10.2.108.138	10.2.108.138
140	10.2.108.139/32	10.2.108.139 – 10.2.108.139	10.2.108.139
141	10.2.108.140/32	10.2.108.140 – 10.2.108.140	10.2.108.140
142	10.2.108.141/32	10.2.108.141 – 10.2.108.141	10.2.108.141
143	10.2.108.142/32	10.2.108.142 – 10.2.108.142	10.2.108.142
144	10.2.108.143/32	10.2.108.143 – 10.2.108.143	10.2.108.143
145	10.2.108.144/32	10.2.108.144 – 10.2.108.144	10.2.108.144
146	10.2.108.145/32	10.2.108.145 – 10.2.108.145	10.2.108.145
147	10.2.108.146/32	10.2.108.146 – 10.2.108.146	10.2.108.146
148	10.2.108.147/32	10.2.108.147 – 10.2.108.147	10.2.108.147
149	10.2.108.148/32	10.2.108.148 – 10.2.108.148	10.2.108.148
150	10.2.108.149/32	10.2.108.149 – 10.2.108.149	10.2.108.149
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210	10.2.108.209/32	10.2.108.209 – 10.2.108.209	10.2.108.209
211	10.2.108.210/32	10.2.108.210 – 10.2.108.210	10.2.108.210
212	10.2.108.211/32	10.2.108.211 – 10.2.108.211	10.2.108.211
213	10.2.108.212/32	10.2.108.212 – 10.2.108.212	10.2.108.212
214	10.2.108.213/32	10.2.108.213 – 10.2.108.213	10.2.108.213
215	10.2.108.214/32	10.2.108.214 – 10.2.108.214	10.2.108.214
216	10.2.108.215/32	10.2.108.215 – 10.2.108.215	10.2.108.215
217	10.2.108.216/32	10.2.108.216 – 10.2.108.216	10.2.108.216
218	10.2.108.217/32	10.2.108.217 – 10.2.108.217	10.2.108.217
219	10.2.108.218/32	10.2.108.218 – 10.2.108.218	10.2.108.218
220	10.2.108.219/32	10.2.108.219 – 10.2.108.219	10.2.108.219
221	10.2.108.220/32	10.2.108.220 – 10.2.108.220	10.2.108.220
222	10.2.108.221/32	10.2.108.221 – 10.2.108.221	10.2.108.221
223	10.2.108.222/32	10.2.108.222 – 10.2.108.222	10.2.108.222
224	10.2.108.223/32	10.2.108.223 – 10.2.108.223	10.2.108.223
225	10.2.108.224/32	10.2.108.224 – 10.2.108.224	10.2.108.224
226	10.2.108.225/32	10.2.108.225 – 10.2.108.225	10.2.108.225
227	10.2.108.226/32	10.2.108.226 – 10.2.108.226	10.2.108.226
228	10.2.108.227/32	10.2.108.227 – 10.2.108.227	10.2.108.227
229	10.2.108.228/32	10.2.108.228 – 10.2.108.228	10.2.108.228
230	10.2.108.229/32	10.2.108.229 – 10.2.108.229	10.2.108.229
231	10.2.108.230/32	10.2.108.230 – 10.2.108.230	10.2.108.230
232	10.2.108.231/32	10.2.108.231 – 10.2.108.231	10.2.108.231
233	10.2.108.232/32	10.2.108.232 – 10.2.108.232	10.2.108.232
234	10.2.108.233/32	10.2.108.233 – 10.2.108.233	10.2.108.233
235	10.2.108.234/32	10.2.108.234 – 10.2.108.234	10.2.108.234
236	10.2.108.235/32	10.2.108.235 – 10.2.108.235	10.2.108.235
237	10.2.108.236/32	10.2.108.236 – 10.2.108.236	10.2.108.236
238	10.2.108.237/32	10.2.108.237 – 10.2.108.237	10.2.108.237
239	10.2.108.238/32	10.2.108.238 – 10.2.108.238	10.2.108.238
240	10.2.108.239/32	10.2.108.239 – 10.2.108.239	10.2.108.239
241	10.2.108.240/32	10.2.108.240 – 10.2.108.240	10.2.108.240
242	10.2.108.241/32	10.2.108.241 – 10.2.108.241	10.2.108.241
243	10.2.108.242/32	10.2.108.242 – 10.2.108.242	10.2.108.242
244	10.2.108.243/32	10.2.108.243 – 10.2.108.243	10.2.108.243
245	10.2.108.244/32	10.2.108.244 – 10.2.108.244	10.2.108.244
246	10.2.108.245/32	10.2.108.245 – 10.2.108.245	10.2.108.245
247	10.2.108.246/32	10.2.108.246 – 10.2.108.246	10.2.108.246
248	10.2.108.247/32	10.2.108.247 – 10.2.108.247	10.2.108.247
249	10.2.108.248/32	10.2.108.248 – 10.2.108.248	10.2.108.248
250	10.2.108.249/32	10.2.108.249 – 10.2.108.249	10.2.108.249
251	10.2.108.250/32	10.2.108.250 – 10.2.108.250	10.2.108.250
252	10.2.108.251/32	10.2.108.251 – 10.2.108.251	10.2.108.251
253	10.2.108.252/32	10.2.108.252 – 10.2.108.252	10.2.108.252
254	10.2.108.253/32	10.2.108.253 – 10.2.108.253	10.2.108.253
255	10.2.108.254/32	10.2.108.254 – 10.2.108.254	10.2.108.254
256	10.2.108.255/32	10.2.108.255 – 10.2.108.255	10.2.108.255

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 →