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)10.37.84.0/22

network10.37.84.0/22

broadcast10.37.87.255

first host10.37.84.1

last host10.37.87.254

subnet mask255.255.252.0

wildcard0.0.3.255

addresses1,024

usable hosts1,022

classA

ipcalc 10.37.84.0/22

address00001010.00100101.01010100.00000000

subnet mask11111111.11111111.11111100.00000000

network00001010.00100101.01010100.00000000

broadcast00001010.00100101.01010111.11111111

green = network part, grey = host part

hex0x0a255400

decimal170218496

reverse dns0.84.37.10.in-addr.arpa

ipv4-mapped::ffff:a25:5400

/22 split into /32 · 1,024 subnets

close ×

#	network	host range	broadcast
1	10.37.84.0/32	10.37.84.0 – 10.37.84.0	10.37.84.0
2	10.37.84.1/32	10.37.84.1 – 10.37.84.1	10.37.84.1
3	10.37.84.2/32	10.37.84.2 – 10.37.84.2	10.37.84.2
4	10.37.84.3/32	10.37.84.3 – 10.37.84.3	10.37.84.3
5	10.37.84.4/32	10.37.84.4 – 10.37.84.4	10.37.84.4
6	10.37.84.5/32	10.37.84.5 – 10.37.84.5	10.37.84.5
7	10.37.84.6/32	10.37.84.6 – 10.37.84.6	10.37.84.6
8	10.37.84.7/32	10.37.84.7 – 10.37.84.7	10.37.84.7
9	10.37.84.8/32	10.37.84.8 – 10.37.84.8	10.37.84.8
10	10.37.84.9/32	10.37.84.9 – 10.37.84.9	10.37.84.9
11	10.37.84.10/32	10.37.84.10 – 10.37.84.10	10.37.84.10
12	10.37.84.11/32	10.37.84.11 – 10.37.84.11	10.37.84.11
13	10.37.84.12/32	10.37.84.12 – 10.37.84.12	10.37.84.12
14	10.37.84.13/32	10.37.84.13 – 10.37.84.13	10.37.84.13
15	10.37.84.14/32	10.37.84.14 – 10.37.84.14	10.37.84.14
16	10.37.84.15/32	10.37.84.15 – 10.37.84.15	10.37.84.15
17	10.37.84.16/32	10.37.84.16 – 10.37.84.16	10.37.84.16
18	10.37.84.17/32	10.37.84.17 – 10.37.84.17	10.37.84.17
19	10.37.84.18/32	10.37.84.18 – 10.37.84.18	10.37.84.18
20	10.37.84.19/32	10.37.84.19 – 10.37.84.19	10.37.84.19
21	10.37.84.20/32	10.37.84.20 – 10.37.84.20	10.37.84.20
22	10.37.84.21/32	10.37.84.21 – 10.37.84.21	10.37.84.21
23	10.37.84.22/32	10.37.84.22 – 10.37.84.22	10.37.84.22
24	10.37.84.23/32	10.37.84.23 – 10.37.84.23	10.37.84.23
25	10.37.84.24/32	10.37.84.24 – 10.37.84.24	10.37.84.24
26	10.37.84.25/32	10.37.84.25 – 10.37.84.25	10.37.84.25
27	10.37.84.26/32	10.37.84.26 – 10.37.84.26	10.37.84.26
28	10.37.84.27/32	10.37.84.27 – 10.37.84.27	10.37.84.27
29	10.37.84.28/32	10.37.84.28 – 10.37.84.28	10.37.84.28
30	10.37.84.29/32	10.37.84.29 – 10.37.84.29	10.37.84.29
31	10.37.84.30/32	10.37.84.30 – 10.37.84.30	10.37.84.30
32	10.37.84.31/32	10.37.84.31 – 10.37.84.31	10.37.84.31
33	10.37.84.32/32	10.37.84.32 – 10.37.84.32	10.37.84.32
34	10.37.84.33/32	10.37.84.33 – 10.37.84.33	10.37.84.33
35	10.37.84.34/32	10.37.84.34 – 10.37.84.34	10.37.84.34
36	10.37.84.35/32	10.37.84.35 – 10.37.84.35	10.37.84.35
37	10.37.84.36/32	10.37.84.36 – 10.37.84.36	10.37.84.36
38	10.37.84.37/32	10.37.84.37 – 10.37.84.37	10.37.84.37
39	10.37.84.38/32	10.37.84.38 – 10.37.84.38	10.37.84.38
40	10.37.84.39/32	10.37.84.39 – 10.37.84.39	10.37.84.39
41	10.37.84.40/32	10.37.84.40 – 10.37.84.40	10.37.84.40
42	10.37.84.41/32	10.37.84.41 – 10.37.84.41	10.37.84.41
43	10.37.84.42/32	10.37.84.42 – 10.37.84.42	10.37.84.42
44	10.37.84.43/32	10.37.84.43 – 10.37.84.43	10.37.84.43
45	10.37.84.44/32	10.37.84.44 – 10.37.84.44	10.37.84.44
46	10.37.84.45/32	10.37.84.45 – 10.37.84.45	10.37.84.45
47	10.37.84.46/32	10.37.84.46 – 10.37.84.46	10.37.84.46
48	10.37.84.47/32	10.37.84.47 – 10.37.84.47	10.37.84.47
49	10.37.84.48/32	10.37.84.48 – 10.37.84.48	10.37.84.48
50	10.37.84.49/32	10.37.84.49 – 10.37.84.49	10.37.84.49
51	10.37.84.50/32	10.37.84.50 – 10.37.84.50	10.37.84.50
52	10.37.84.51/32	10.37.84.51 – 10.37.84.51	10.37.84.51
53	10.37.84.52/32	10.37.84.52 – 10.37.84.52	10.37.84.52
54	10.37.84.53/32	10.37.84.53 – 10.37.84.53	10.37.84.53
55	10.37.84.54/32	10.37.84.54 – 10.37.84.54	10.37.84.54
56	10.37.84.55/32	10.37.84.55 – 10.37.84.55	10.37.84.55
57	10.37.84.56/32	10.37.84.56 – 10.37.84.56	10.37.84.56
58	10.37.84.57/32	10.37.84.57 – 10.37.84.57	10.37.84.57
59	10.37.84.58/32	10.37.84.58 – 10.37.84.58	10.37.84.58
60	10.37.84.59/32	10.37.84.59 – 10.37.84.59	10.37.84.59
61	10.37.84.60/32	10.37.84.60 – 10.37.84.60	10.37.84.60
62	10.37.84.61/32	10.37.84.61 – 10.37.84.61	10.37.84.61
63	10.37.84.62/32	10.37.84.62 – 10.37.84.62	10.37.84.62
64	10.37.84.63/32	10.37.84.63 – 10.37.84.63	10.37.84.63
65	10.37.84.64/32	10.37.84.64 – 10.37.84.64	10.37.84.64
66	10.37.84.65/32	10.37.84.65 – 10.37.84.65	10.37.84.65
67	10.37.84.66/32	10.37.84.66 – 10.37.84.66	10.37.84.66
68	10.37.84.67/32	10.37.84.67 – 10.37.84.67	10.37.84.67
69	10.37.84.68/32	10.37.84.68 – 10.37.84.68	10.37.84.68
70	10.37.84.69/32	10.37.84.69 – 10.37.84.69	10.37.84.69
71	10.37.84.70/32	10.37.84.70 – 10.37.84.70	10.37.84.70
72	10.37.84.71/32	10.37.84.71 – 10.37.84.71	10.37.84.71
73	10.37.84.72/32	10.37.84.72 – 10.37.84.72	10.37.84.72
74	10.37.84.73/32	10.37.84.73 – 10.37.84.73	10.37.84.73
75	10.37.84.74/32	10.37.84.74 – 10.37.84.74	10.37.84.74
76	10.37.84.75/32	10.37.84.75 – 10.37.84.75	10.37.84.75
77	10.37.84.76/32	10.37.84.76 – 10.37.84.76	10.37.84.76
78	10.37.84.77/32	10.37.84.77 – 10.37.84.77	10.37.84.77
79	10.37.84.78/32	10.37.84.78 – 10.37.84.78	10.37.84.78
80	10.37.84.79/32	10.37.84.79 – 10.37.84.79	10.37.84.79
81	10.37.84.80/32	10.37.84.80 – 10.37.84.80	10.37.84.80
82	10.37.84.81/32	10.37.84.81 – 10.37.84.81	10.37.84.81
83	10.37.84.82/32	10.37.84.82 – 10.37.84.82	10.37.84.82
84	10.37.84.83/32	10.37.84.83 – 10.37.84.83	10.37.84.83
85	10.37.84.84/32	10.37.84.84 – 10.37.84.84	10.37.84.84
86	10.37.84.85/32	10.37.84.85 – 10.37.84.85	10.37.84.85
87	10.37.84.86/32	10.37.84.86 – 10.37.84.86	10.37.84.86
88	10.37.84.87/32	10.37.84.87 – 10.37.84.87	10.37.84.87
89	10.37.84.88/32	10.37.84.88 – 10.37.84.88	10.37.84.88
90	10.37.84.89/32	10.37.84.89 – 10.37.84.89	10.37.84.89
91	10.37.84.90/32	10.37.84.90 – 10.37.84.90	10.37.84.90
92	10.37.84.91/32	10.37.84.91 – 10.37.84.91	10.37.84.91
93	10.37.84.92/32	10.37.84.92 – 10.37.84.92	10.37.84.92
94	10.37.84.93/32	10.37.84.93 – 10.37.84.93	10.37.84.93
95	10.37.84.94/32	10.37.84.94 – 10.37.84.94	10.37.84.94
96	10.37.84.95/32	10.37.84.95 – 10.37.84.95	10.37.84.95
97	10.37.84.96/32	10.37.84.96 – 10.37.84.96	10.37.84.96
98	10.37.84.97/32	10.37.84.97 – 10.37.84.97	10.37.84.97
99	10.37.84.98/32	10.37.84.98 – 10.37.84.98	10.37.84.98
100	10.37.84.99/32	10.37.84.99 – 10.37.84.99	10.37.84.99
101	10.37.84.100/32	10.37.84.100 – 10.37.84.100	10.37.84.100
102	10.37.84.101/32	10.37.84.101 – 10.37.84.101	10.37.84.101
103	10.37.84.102/32	10.37.84.102 – 10.37.84.102	10.37.84.102
104	10.37.84.103/32	10.37.84.103 – 10.37.84.103	10.37.84.103
105	10.37.84.104/32	10.37.84.104 – 10.37.84.104	10.37.84.104
106	10.37.84.105/32	10.37.84.105 – 10.37.84.105	10.37.84.105
107	10.37.84.106/32	10.37.84.106 – 10.37.84.106	10.37.84.106
108	10.37.84.107/32	10.37.84.107 – 10.37.84.107	10.37.84.107
109	10.37.84.108/32	10.37.84.108 – 10.37.84.108	10.37.84.108
110	10.37.84.109/32	10.37.84.109 – 10.37.84.109	10.37.84.109
111	10.37.84.110/32	10.37.84.110 – 10.37.84.110	10.37.84.110
112	10.37.84.111/32	10.37.84.111 – 10.37.84.111	10.37.84.111
113	10.37.84.112/32	10.37.84.112 – 10.37.84.112	10.37.84.112
114	10.37.84.113/32	10.37.84.113 – 10.37.84.113	10.37.84.113
115	10.37.84.114/32	10.37.84.114 – 10.37.84.114	10.37.84.114
116	10.37.84.115/32	10.37.84.115 – 10.37.84.115	10.37.84.115
117	10.37.84.116/32	10.37.84.116 – 10.37.84.116	10.37.84.116
118	10.37.84.117/32	10.37.84.117 – 10.37.84.117	10.37.84.117
119	10.37.84.118/32	10.37.84.118 – 10.37.84.118	10.37.84.118
120	10.37.84.119/32	10.37.84.119 – 10.37.84.119	10.37.84.119
121	10.37.84.120/32	10.37.84.120 – 10.37.84.120	10.37.84.120
122	10.37.84.121/32	10.37.84.121 – 10.37.84.121	10.37.84.121
123	10.37.84.122/32	10.37.84.122 – 10.37.84.122	10.37.84.122
124	10.37.84.123/32	10.37.84.123 – 10.37.84.123	10.37.84.123
125	10.37.84.124/32	10.37.84.124 – 10.37.84.124	10.37.84.124
126	10.37.84.125/32	10.37.84.125 – 10.37.84.125	10.37.84.125
127	10.37.84.126/32	10.37.84.126 – 10.37.84.126	10.37.84.126
128	10.37.84.127/32	10.37.84.127 – 10.37.84.127	10.37.84.127
129	10.37.84.128/32	10.37.84.128 – 10.37.84.128	10.37.84.128
130	10.37.84.129/32	10.37.84.129 – 10.37.84.129	10.37.84.129
131	10.37.84.130/32	10.37.84.130 – 10.37.84.130	10.37.84.130
132	10.37.84.131/32	10.37.84.131 – 10.37.84.131	10.37.84.131
133	10.37.84.132/32	10.37.84.132 – 10.37.84.132	10.37.84.132
134	10.37.84.133/32	10.37.84.133 – 10.37.84.133	10.37.84.133
135	10.37.84.134/32	10.37.84.134 – 10.37.84.134	10.37.84.134
136	10.37.84.135/32	10.37.84.135 – 10.37.84.135	10.37.84.135
137	10.37.84.136/32	10.37.84.136 – 10.37.84.136	10.37.84.136
138	10.37.84.137/32	10.37.84.137 – 10.37.84.137	10.37.84.137
139	10.37.84.138/32	10.37.84.138 – 10.37.84.138	10.37.84.138
140	10.37.84.139/32	10.37.84.139 – 10.37.84.139	10.37.84.139
141	10.37.84.140/32	10.37.84.140 – 10.37.84.140	10.37.84.140
142	10.37.84.141/32	10.37.84.141 – 10.37.84.141	10.37.84.141
143	10.37.84.142/32	10.37.84.142 – 10.37.84.142	10.37.84.142
144	10.37.84.143/32	10.37.84.143 – 10.37.84.143	10.37.84.143
145	10.37.84.144/32	10.37.84.144 – 10.37.84.144	10.37.84.144
146	10.37.84.145/32	10.37.84.145 – 10.37.84.145	10.37.84.145
147	10.37.84.146/32	10.37.84.146 – 10.37.84.146	10.37.84.146
148	10.37.84.147/32	10.37.84.147 – 10.37.84.147	10.37.84.147
149	10.37.84.148/32	10.37.84.148 – 10.37.84.148	10.37.84.148
150	10.37.84.149/32	10.37.84.149 – 10.37.84.149	10.37.84.149
151	10.37.84.150/32	10.37.84.150 – 10.37.84.150	10.37.84.150
152	10.37.84.151/32	10.37.84.151 – 10.37.84.151	10.37.84.151
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156	10.37.84.155/32	10.37.84.155 – 10.37.84.155	10.37.84.155
157	10.37.84.156/32	10.37.84.156 – 10.37.84.156	10.37.84.156
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210	10.37.84.209/32	10.37.84.209 – 10.37.84.209	10.37.84.209
211	10.37.84.210/32	10.37.84.210 – 10.37.84.210	10.37.84.210
212	10.37.84.211/32	10.37.84.211 – 10.37.84.211	10.37.84.211
213	10.37.84.212/32	10.37.84.212 – 10.37.84.212	10.37.84.212
214	10.37.84.213/32	10.37.84.213 – 10.37.84.213	10.37.84.213
215	10.37.84.214/32	10.37.84.214 – 10.37.84.214	10.37.84.214
216	10.37.84.215/32	10.37.84.215 – 10.37.84.215	10.37.84.215
217	10.37.84.216/32	10.37.84.216 – 10.37.84.216	10.37.84.216
218	10.37.84.217/32	10.37.84.217 – 10.37.84.217	10.37.84.217
219	10.37.84.218/32	10.37.84.218 – 10.37.84.218	10.37.84.218
220	10.37.84.219/32	10.37.84.219 – 10.37.84.219	10.37.84.219
221	10.37.84.220/32	10.37.84.220 – 10.37.84.220	10.37.84.220
222	10.37.84.221/32	10.37.84.221 – 10.37.84.221	10.37.84.221
223	10.37.84.222/32	10.37.84.222 – 10.37.84.222	10.37.84.222
224	10.37.84.223/32	10.37.84.223 – 10.37.84.223	10.37.84.223
225	10.37.84.224/32	10.37.84.224 – 10.37.84.224	10.37.84.224
226	10.37.84.225/32	10.37.84.225 – 10.37.84.225	10.37.84.225
227	10.37.84.226/32	10.37.84.226 – 10.37.84.226	10.37.84.226
228	10.37.84.227/32	10.37.84.227 – 10.37.84.227	10.37.84.227
229	10.37.84.228/32	10.37.84.228 – 10.37.84.228	10.37.84.228
230	10.37.84.229/32	10.37.84.229 – 10.37.84.229	10.37.84.229
231	10.37.84.230/32	10.37.84.230 – 10.37.84.230	10.37.84.230
232	10.37.84.231/32	10.37.84.231 – 10.37.84.231	10.37.84.231
233	10.37.84.232/32	10.37.84.232 – 10.37.84.232	10.37.84.232
234	10.37.84.233/32	10.37.84.233 – 10.37.84.233	10.37.84.233
235	10.37.84.234/32	10.37.84.234 – 10.37.84.234	10.37.84.234
236	10.37.84.235/32	10.37.84.235 – 10.37.84.235	10.37.84.235
237	10.37.84.236/32	10.37.84.236 – 10.37.84.236	10.37.84.236
238	10.37.84.237/32	10.37.84.237 – 10.37.84.237	10.37.84.237
239	10.37.84.238/32	10.37.84.238 – 10.37.84.238	10.37.84.238
240	10.37.84.239/32	10.37.84.239 – 10.37.84.239	10.37.84.239
241	10.37.84.240/32	10.37.84.240 – 10.37.84.240	10.37.84.240
242	10.37.84.241/32	10.37.84.241 – 10.37.84.241	10.37.84.241
243	10.37.84.242/32	10.37.84.242 – 10.37.84.242	10.37.84.242
244	10.37.84.243/32	10.37.84.243 – 10.37.84.243	10.37.84.243
245	10.37.84.244/32	10.37.84.244 – 10.37.84.244	10.37.84.244
246	10.37.84.245/32	10.37.84.245 – 10.37.84.245	10.37.84.245
247	10.37.84.246/32	10.37.84.246 – 10.37.84.246	10.37.84.246
248	10.37.84.247/32	10.37.84.247 – 10.37.84.247	10.37.84.247
249	10.37.84.248/32	10.37.84.248 – 10.37.84.248	10.37.84.248
250	10.37.84.249/32	10.37.84.249 – 10.37.84.249	10.37.84.249
251	10.37.84.250/32	10.37.84.250 – 10.37.84.250	10.37.84.250
252	10.37.84.251/32	10.37.84.251 – 10.37.84.251	10.37.84.251
253	10.37.84.252/32	10.37.84.252 – 10.37.84.252	10.37.84.252
254	10.37.84.253/32	10.37.84.253 – 10.37.84.253	10.37.84.253
255	10.37.84.254/32	10.37.84.254 – 10.37.84.254	10.37.84.254
256	10.37.84.255/32	10.37.84.255 – 10.37.84.255	10.37.84.255

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 →