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)10.2.184.0/22

network10.2.184.0/22

broadcast10.2.187.255

first host10.2.184.1

last host10.2.187.254

subnet mask255.255.252.0

wildcard0.0.3.255

addresses1,024

usable hosts1,022

classA

ipcalc 10.2.184.0/22

address00001010.00000010.10111000.00000000

subnet mask11111111.11111111.11111100.00000000

network00001010.00000010.10111000.00000000

broadcast00001010.00000010.10111011.11111111

green = network part, grey = host part

hex0x0a02b800

decimal167950336

reverse dns0.184.2.10.in-addr.arpa

ipv4-mapped::ffff:a02:b800

/22 split into /31 · 512 subnets

close ×

#	network	host range	broadcast
1	10.2.184.0/31	10.2.184.0 – 10.2.184.1	10.2.184.1
2	10.2.184.2/31	10.2.184.2 – 10.2.184.3	10.2.184.3
3	10.2.184.4/31	10.2.184.4 – 10.2.184.5	10.2.184.5
4	10.2.184.6/31	10.2.184.6 – 10.2.184.7	10.2.184.7
5	10.2.184.8/31	10.2.184.8 – 10.2.184.9	10.2.184.9
6	10.2.184.10/31	10.2.184.10 – 10.2.184.11	10.2.184.11
7	10.2.184.12/31	10.2.184.12 – 10.2.184.13	10.2.184.13
8	10.2.184.14/31	10.2.184.14 – 10.2.184.15	10.2.184.15
9	10.2.184.16/31	10.2.184.16 – 10.2.184.17	10.2.184.17
10	10.2.184.18/31	10.2.184.18 – 10.2.184.19	10.2.184.19
11	10.2.184.20/31	10.2.184.20 – 10.2.184.21	10.2.184.21
12	10.2.184.22/31	10.2.184.22 – 10.2.184.23	10.2.184.23
13	10.2.184.24/31	10.2.184.24 – 10.2.184.25	10.2.184.25
14	10.2.184.26/31	10.2.184.26 – 10.2.184.27	10.2.184.27
15	10.2.184.28/31	10.2.184.28 – 10.2.184.29	10.2.184.29
16	10.2.184.30/31	10.2.184.30 – 10.2.184.31	10.2.184.31
17	10.2.184.32/31	10.2.184.32 – 10.2.184.33	10.2.184.33
18	10.2.184.34/31	10.2.184.34 – 10.2.184.35	10.2.184.35
19	10.2.184.36/31	10.2.184.36 – 10.2.184.37	10.2.184.37
20	10.2.184.38/31	10.2.184.38 – 10.2.184.39	10.2.184.39
21	10.2.184.40/31	10.2.184.40 – 10.2.184.41	10.2.184.41
22	10.2.184.42/31	10.2.184.42 – 10.2.184.43	10.2.184.43
23	10.2.184.44/31	10.2.184.44 – 10.2.184.45	10.2.184.45
24	10.2.184.46/31	10.2.184.46 – 10.2.184.47	10.2.184.47
25	10.2.184.48/31	10.2.184.48 – 10.2.184.49	10.2.184.49
26	10.2.184.50/31	10.2.184.50 – 10.2.184.51	10.2.184.51
27	10.2.184.52/31	10.2.184.52 – 10.2.184.53	10.2.184.53
28	10.2.184.54/31	10.2.184.54 – 10.2.184.55	10.2.184.55
29	10.2.184.56/31	10.2.184.56 – 10.2.184.57	10.2.184.57
30	10.2.184.58/31	10.2.184.58 – 10.2.184.59	10.2.184.59
31	10.2.184.60/31	10.2.184.60 – 10.2.184.61	10.2.184.61
32	10.2.184.62/31	10.2.184.62 – 10.2.184.63	10.2.184.63
33	10.2.184.64/31	10.2.184.64 – 10.2.184.65	10.2.184.65
34	10.2.184.66/31	10.2.184.66 – 10.2.184.67	10.2.184.67
35	10.2.184.68/31	10.2.184.68 – 10.2.184.69	10.2.184.69
36	10.2.184.70/31	10.2.184.70 – 10.2.184.71	10.2.184.71
37	10.2.184.72/31	10.2.184.72 – 10.2.184.73	10.2.184.73
38	10.2.184.74/31	10.2.184.74 – 10.2.184.75	10.2.184.75
39	10.2.184.76/31	10.2.184.76 – 10.2.184.77	10.2.184.77
40	10.2.184.78/31	10.2.184.78 – 10.2.184.79	10.2.184.79
41	10.2.184.80/31	10.2.184.80 – 10.2.184.81	10.2.184.81
42	10.2.184.82/31	10.2.184.82 – 10.2.184.83	10.2.184.83
43	10.2.184.84/31	10.2.184.84 – 10.2.184.85	10.2.184.85
44	10.2.184.86/31	10.2.184.86 – 10.2.184.87	10.2.184.87
45	10.2.184.88/31	10.2.184.88 – 10.2.184.89	10.2.184.89
46	10.2.184.90/31	10.2.184.90 – 10.2.184.91	10.2.184.91
47	10.2.184.92/31	10.2.184.92 – 10.2.184.93	10.2.184.93
48	10.2.184.94/31	10.2.184.94 – 10.2.184.95	10.2.184.95
49	10.2.184.96/31	10.2.184.96 – 10.2.184.97	10.2.184.97
50	10.2.184.98/31	10.2.184.98 – 10.2.184.99	10.2.184.99
51	10.2.184.100/31	10.2.184.100 – 10.2.184.101	10.2.184.101
52	10.2.184.102/31	10.2.184.102 – 10.2.184.103	10.2.184.103
53	10.2.184.104/31	10.2.184.104 – 10.2.184.105	10.2.184.105
54	10.2.184.106/31	10.2.184.106 – 10.2.184.107	10.2.184.107
55	10.2.184.108/31	10.2.184.108 – 10.2.184.109	10.2.184.109
56	10.2.184.110/31	10.2.184.110 – 10.2.184.111	10.2.184.111
57	10.2.184.112/31	10.2.184.112 – 10.2.184.113	10.2.184.113
58	10.2.184.114/31	10.2.184.114 – 10.2.184.115	10.2.184.115
59	10.2.184.116/31	10.2.184.116 – 10.2.184.117	10.2.184.117
60	10.2.184.118/31	10.2.184.118 – 10.2.184.119	10.2.184.119
61	10.2.184.120/31	10.2.184.120 – 10.2.184.121	10.2.184.121
62	10.2.184.122/31	10.2.184.122 – 10.2.184.123	10.2.184.123
63	10.2.184.124/31	10.2.184.124 – 10.2.184.125	10.2.184.125
64	10.2.184.126/31	10.2.184.126 – 10.2.184.127	10.2.184.127
65	10.2.184.128/31	10.2.184.128 – 10.2.184.129	10.2.184.129
66	10.2.184.130/31	10.2.184.130 – 10.2.184.131	10.2.184.131
67	10.2.184.132/31	10.2.184.132 – 10.2.184.133	10.2.184.133
68	10.2.184.134/31	10.2.184.134 – 10.2.184.135	10.2.184.135
69	10.2.184.136/31	10.2.184.136 – 10.2.184.137	10.2.184.137
70	10.2.184.138/31	10.2.184.138 – 10.2.184.139	10.2.184.139
71	10.2.184.140/31	10.2.184.140 – 10.2.184.141	10.2.184.141
72	10.2.184.142/31	10.2.184.142 – 10.2.184.143	10.2.184.143
73	10.2.184.144/31	10.2.184.144 – 10.2.184.145	10.2.184.145
74	10.2.184.146/31	10.2.184.146 – 10.2.184.147	10.2.184.147
75	10.2.184.148/31	10.2.184.148 – 10.2.184.149	10.2.184.149
76	10.2.184.150/31	10.2.184.150 – 10.2.184.151	10.2.184.151
77	10.2.184.152/31	10.2.184.152 – 10.2.184.153	10.2.184.153
78	10.2.184.154/31	10.2.184.154 – 10.2.184.155	10.2.184.155
79	10.2.184.156/31	10.2.184.156 – 10.2.184.157	10.2.184.157
80	10.2.184.158/31	10.2.184.158 – 10.2.184.159	10.2.184.159
81	10.2.184.160/31	10.2.184.160 – 10.2.184.161	10.2.184.161
82	10.2.184.162/31	10.2.184.162 – 10.2.184.163	10.2.184.163
83	10.2.184.164/31	10.2.184.164 – 10.2.184.165	10.2.184.165
84	10.2.184.166/31	10.2.184.166 – 10.2.184.167	10.2.184.167
85	10.2.184.168/31	10.2.184.168 – 10.2.184.169	10.2.184.169
86	10.2.184.170/31	10.2.184.170 – 10.2.184.171	10.2.184.171
87	10.2.184.172/31	10.2.184.172 – 10.2.184.173	10.2.184.173
88	10.2.184.174/31	10.2.184.174 – 10.2.184.175	10.2.184.175
89	10.2.184.176/31	10.2.184.176 – 10.2.184.177	10.2.184.177
90	10.2.184.178/31	10.2.184.178 – 10.2.184.179	10.2.184.179
91	10.2.184.180/31	10.2.184.180 – 10.2.184.181	10.2.184.181
92	10.2.184.182/31	10.2.184.182 – 10.2.184.183	10.2.184.183
93	10.2.184.184/31	10.2.184.184 – 10.2.184.185	10.2.184.185
94	10.2.184.186/31	10.2.184.186 – 10.2.184.187	10.2.184.187
95	10.2.184.188/31	10.2.184.188 – 10.2.184.189	10.2.184.189
96	10.2.184.190/31	10.2.184.190 – 10.2.184.191	10.2.184.191
97	10.2.184.192/31	10.2.184.192 – 10.2.184.193	10.2.184.193
98	10.2.184.194/31	10.2.184.194 – 10.2.184.195	10.2.184.195
99	10.2.184.196/31	10.2.184.196 – 10.2.184.197	10.2.184.197
100	10.2.184.198/31	10.2.184.198 – 10.2.184.199	10.2.184.199
101	10.2.184.200/31	10.2.184.200 – 10.2.184.201	10.2.184.201
102	10.2.184.202/31	10.2.184.202 – 10.2.184.203	10.2.184.203
103	10.2.184.204/31	10.2.184.204 – 10.2.184.205	10.2.184.205
104	10.2.184.206/31	10.2.184.206 – 10.2.184.207	10.2.184.207
105	10.2.184.208/31	10.2.184.208 – 10.2.184.209	10.2.184.209
106	10.2.184.210/31	10.2.184.210 – 10.2.184.211	10.2.184.211
107	10.2.184.212/31	10.2.184.212 – 10.2.184.213	10.2.184.213
108	10.2.184.214/31	10.2.184.214 – 10.2.184.215	10.2.184.215
109	10.2.184.216/31	10.2.184.216 – 10.2.184.217	10.2.184.217
110	10.2.184.218/31	10.2.184.218 – 10.2.184.219	10.2.184.219
111	10.2.184.220/31	10.2.184.220 – 10.2.184.221	10.2.184.221
112	10.2.184.222/31	10.2.184.222 – 10.2.184.223	10.2.184.223
113	10.2.184.224/31	10.2.184.224 – 10.2.184.225	10.2.184.225
114	10.2.184.226/31	10.2.184.226 – 10.2.184.227	10.2.184.227
115	10.2.184.228/31	10.2.184.228 – 10.2.184.229	10.2.184.229
116	10.2.184.230/31	10.2.184.230 – 10.2.184.231	10.2.184.231
117	10.2.184.232/31	10.2.184.232 – 10.2.184.233	10.2.184.233
118	10.2.184.234/31	10.2.184.234 – 10.2.184.235	10.2.184.235
119	10.2.184.236/31	10.2.184.236 – 10.2.184.237	10.2.184.237
120	10.2.184.238/31	10.2.184.238 – 10.2.184.239	10.2.184.239
121	10.2.184.240/31	10.2.184.240 – 10.2.184.241	10.2.184.241
122	10.2.184.242/31	10.2.184.242 – 10.2.184.243	10.2.184.243
123	10.2.184.244/31	10.2.184.244 – 10.2.184.245	10.2.184.245
124	10.2.184.246/31	10.2.184.246 – 10.2.184.247	10.2.184.247
125	10.2.184.248/31	10.2.184.248 – 10.2.184.249	10.2.184.249
126	10.2.184.250/31	10.2.184.250 – 10.2.184.251	10.2.184.251
127	10.2.184.252/31	10.2.184.252 – 10.2.184.253	10.2.184.253
128	10.2.184.254/31	10.2.184.254 – 10.2.184.255	10.2.184.255
129	10.2.185.0/31	10.2.185.0 – 10.2.185.1	10.2.185.1
130	10.2.185.2/31	10.2.185.2 – 10.2.185.3	10.2.185.3
131	10.2.185.4/31	10.2.185.4 – 10.2.185.5	10.2.185.5
132	10.2.185.6/31	10.2.185.6 – 10.2.185.7	10.2.185.7
133	10.2.185.8/31	10.2.185.8 – 10.2.185.9	10.2.185.9
134	10.2.185.10/31	10.2.185.10 – 10.2.185.11	10.2.185.11
135	10.2.185.12/31	10.2.185.12 – 10.2.185.13	10.2.185.13
136	10.2.185.14/31	10.2.185.14 – 10.2.185.15	10.2.185.15
137	10.2.185.16/31	10.2.185.16 – 10.2.185.17	10.2.185.17
138	10.2.185.18/31	10.2.185.18 – 10.2.185.19	10.2.185.19
139	10.2.185.20/31	10.2.185.20 – 10.2.185.21	10.2.185.21
140	10.2.185.22/31	10.2.185.22 – 10.2.185.23	10.2.185.23
141	10.2.185.24/31	10.2.185.24 – 10.2.185.25	10.2.185.25
142	10.2.185.26/31	10.2.185.26 – 10.2.185.27	10.2.185.27
143	10.2.185.28/31	10.2.185.28 – 10.2.185.29	10.2.185.29
144	10.2.185.30/31	10.2.185.30 – 10.2.185.31	10.2.185.31
145	10.2.185.32/31	10.2.185.32 – 10.2.185.33	10.2.185.33
146	10.2.185.34/31	10.2.185.34 – 10.2.185.35	10.2.185.35
147	10.2.185.36/31	10.2.185.36 – 10.2.185.37	10.2.185.37
148	10.2.185.38/31	10.2.185.38 – 10.2.185.39	10.2.185.39
149	10.2.185.40/31	10.2.185.40 – 10.2.185.41	10.2.185.41
150	10.2.185.42/31	10.2.185.42 – 10.2.185.43	10.2.185.43
151	10.2.185.44/31	10.2.185.44 – 10.2.185.45	10.2.185.45
152	10.2.185.46/31	10.2.185.46 – 10.2.185.47	10.2.185.47
153	10.2.185.48/31	10.2.185.48 – 10.2.185.49	10.2.185.49
154	10.2.185.50/31	10.2.185.50 – 10.2.185.51	10.2.185.51
155	10.2.185.52/31	10.2.185.52 – 10.2.185.53	10.2.185.53
156	10.2.185.54/31	10.2.185.54 – 10.2.185.55	10.2.185.55
157	10.2.185.56/31	10.2.185.56 – 10.2.185.57	10.2.185.57
158	10.2.185.58/31	10.2.185.58 – 10.2.185.59	10.2.185.59
159	10.2.185.60/31	10.2.185.60 – 10.2.185.61	10.2.185.61
160	10.2.185.62/31	10.2.185.62 – 10.2.185.63	10.2.185.63
161	10.2.185.64/31	10.2.185.64 – 10.2.185.65	10.2.185.65
162	10.2.185.66/31	10.2.185.66 – 10.2.185.67	10.2.185.67
163	10.2.185.68/31	10.2.185.68 – 10.2.185.69	10.2.185.69
164	10.2.185.70/31	10.2.185.70 – 10.2.185.71	10.2.185.71
165	10.2.185.72/31	10.2.185.72 – 10.2.185.73	10.2.185.73
166	10.2.185.74/31	10.2.185.74 – 10.2.185.75	10.2.185.75
167	10.2.185.76/31	10.2.185.76 – 10.2.185.77	10.2.185.77
168	10.2.185.78/31	10.2.185.78 – 10.2.185.79	10.2.185.79
169	10.2.185.80/31	10.2.185.80 – 10.2.185.81	10.2.185.81
170	10.2.185.82/31	10.2.185.82 – 10.2.185.83	10.2.185.83
171	10.2.185.84/31	10.2.185.84 – 10.2.185.85	10.2.185.85
172	10.2.185.86/31	10.2.185.86 – 10.2.185.87	10.2.185.87
173	10.2.185.88/31	10.2.185.88 – 10.2.185.89	10.2.185.89
174	10.2.185.90/31	10.2.185.90 – 10.2.185.91	10.2.185.91
175	10.2.185.92/31	10.2.185.92 – 10.2.185.93	10.2.185.93
176	10.2.185.94/31	10.2.185.94 – 10.2.185.95	10.2.185.95
177	10.2.185.96/31	10.2.185.96 – 10.2.185.97	10.2.185.97
178	10.2.185.98/31	10.2.185.98 – 10.2.185.99	10.2.185.99
179	10.2.185.100/31	10.2.185.100 – 10.2.185.101	10.2.185.101
180	10.2.185.102/31	10.2.185.102 – 10.2.185.103	10.2.185.103
181	10.2.185.104/31	10.2.185.104 – 10.2.185.105	10.2.185.105
182	10.2.185.106/31	10.2.185.106 – 10.2.185.107	10.2.185.107
183	10.2.185.108/31	10.2.185.108 – 10.2.185.109	10.2.185.109
184	10.2.185.110/31	10.2.185.110 – 10.2.185.111	10.2.185.111
185	10.2.185.112/31	10.2.185.112 – 10.2.185.113	10.2.185.113
186	10.2.185.114/31	10.2.185.114 – 10.2.185.115	10.2.185.115
187	10.2.185.116/31	10.2.185.116 – 10.2.185.117	10.2.185.117
188	10.2.185.118/31	10.2.185.118 – 10.2.185.119	10.2.185.119
189	10.2.185.120/31	10.2.185.120 – 10.2.185.121	10.2.185.121
190	10.2.185.122/31	10.2.185.122 – 10.2.185.123	10.2.185.123
191	10.2.185.124/31	10.2.185.124 – 10.2.185.125	10.2.185.125
192	10.2.185.126/31	10.2.185.126 – 10.2.185.127	10.2.185.127
193	10.2.185.128/31	10.2.185.128 – 10.2.185.129	10.2.185.129
194	10.2.185.130/31	10.2.185.130 – 10.2.185.131	10.2.185.131
195	10.2.185.132/31	10.2.185.132 – 10.2.185.133	10.2.185.133
196	10.2.185.134/31	10.2.185.134 – 10.2.185.135	10.2.185.135
197	10.2.185.136/31	10.2.185.136 – 10.2.185.137	10.2.185.137
198	10.2.185.138/31	10.2.185.138 – 10.2.185.139	10.2.185.139
199	10.2.185.140/31	10.2.185.140 – 10.2.185.141	10.2.185.141
200	10.2.185.142/31	10.2.185.142 – 10.2.185.143	10.2.185.143
201	10.2.185.144/31	10.2.185.144 – 10.2.185.145	10.2.185.145
202	10.2.185.146/31	10.2.185.146 – 10.2.185.147	10.2.185.147
203	10.2.185.148/31	10.2.185.148 – 10.2.185.149	10.2.185.149
204	10.2.185.150/31	10.2.185.150 – 10.2.185.151	10.2.185.151
205	10.2.185.152/31	10.2.185.152 – 10.2.185.153	10.2.185.153
206	10.2.185.154/31	10.2.185.154 – 10.2.185.155	10.2.185.155
207	10.2.185.156/31	10.2.185.156 – 10.2.185.157	10.2.185.157
208	10.2.185.158/31	10.2.185.158 – 10.2.185.159	10.2.185.159
209	10.2.185.160/31	10.2.185.160 – 10.2.185.161	10.2.185.161
210	10.2.185.162/31	10.2.185.162 – 10.2.185.163	10.2.185.163
211	10.2.185.164/31	10.2.185.164 – 10.2.185.165	10.2.185.165
212	10.2.185.166/31	10.2.185.166 – 10.2.185.167	10.2.185.167
213	10.2.185.168/31	10.2.185.168 – 10.2.185.169	10.2.185.169
214	10.2.185.170/31	10.2.185.170 – 10.2.185.171	10.2.185.171
215	10.2.185.172/31	10.2.185.172 – 10.2.185.173	10.2.185.173
216	10.2.185.174/31	10.2.185.174 – 10.2.185.175	10.2.185.175
217	10.2.185.176/31	10.2.185.176 – 10.2.185.177	10.2.185.177
218	10.2.185.178/31	10.2.185.178 – 10.2.185.179	10.2.185.179
219	10.2.185.180/31	10.2.185.180 – 10.2.185.181	10.2.185.181
220	10.2.185.182/31	10.2.185.182 – 10.2.185.183	10.2.185.183
221	10.2.185.184/31	10.2.185.184 – 10.2.185.185	10.2.185.185
222	10.2.185.186/31	10.2.185.186 – 10.2.185.187	10.2.185.187
223	10.2.185.188/31	10.2.185.188 – 10.2.185.189	10.2.185.189
224	10.2.185.190/31	10.2.185.190 – 10.2.185.191	10.2.185.191
225	10.2.185.192/31	10.2.185.192 – 10.2.185.193	10.2.185.193
226	10.2.185.194/31	10.2.185.194 – 10.2.185.195	10.2.185.195
227	10.2.185.196/31	10.2.185.196 – 10.2.185.197	10.2.185.197
228	10.2.185.198/31	10.2.185.198 – 10.2.185.199	10.2.185.199
229	10.2.185.200/31	10.2.185.200 – 10.2.185.201	10.2.185.201
230	10.2.185.202/31	10.2.185.202 – 10.2.185.203	10.2.185.203
231	10.2.185.204/31	10.2.185.204 – 10.2.185.205	10.2.185.205
232	10.2.185.206/31	10.2.185.206 – 10.2.185.207	10.2.185.207
233	10.2.185.208/31	10.2.185.208 – 10.2.185.209	10.2.185.209
234	10.2.185.210/31	10.2.185.210 – 10.2.185.211	10.2.185.211
235	10.2.185.212/31	10.2.185.212 – 10.2.185.213	10.2.185.213
236	10.2.185.214/31	10.2.185.214 – 10.2.185.215	10.2.185.215
237	10.2.185.216/31	10.2.185.216 – 10.2.185.217	10.2.185.217
238	10.2.185.218/31	10.2.185.218 – 10.2.185.219	10.2.185.219
239	10.2.185.220/31	10.2.185.220 – 10.2.185.221	10.2.185.221
240	10.2.185.222/31	10.2.185.222 – 10.2.185.223	10.2.185.223
241	10.2.185.224/31	10.2.185.224 – 10.2.185.225	10.2.185.225
242	10.2.185.226/31	10.2.185.226 – 10.2.185.227	10.2.185.227
243	10.2.185.228/31	10.2.185.228 – 10.2.185.229	10.2.185.229
244	10.2.185.230/31	10.2.185.230 – 10.2.185.231	10.2.185.231
245	10.2.185.232/31	10.2.185.232 – 10.2.185.233	10.2.185.233
246	10.2.185.234/31	10.2.185.234 – 10.2.185.235	10.2.185.235
247	10.2.185.236/31	10.2.185.236 – 10.2.185.237	10.2.185.237
248	10.2.185.238/31	10.2.185.238 – 10.2.185.239	10.2.185.239
249	10.2.185.240/31	10.2.185.240 – 10.2.185.241	10.2.185.241
250	10.2.185.242/31	10.2.185.242 – 10.2.185.243	10.2.185.243
251	10.2.185.244/31	10.2.185.244 – 10.2.185.245	10.2.185.245
252	10.2.185.246/31	10.2.185.246 – 10.2.185.247	10.2.185.247
253	10.2.185.248/31	10.2.185.248 – 10.2.185.249	10.2.185.249
254	10.2.185.250/31	10.2.185.250 – 10.2.185.251	10.2.185.251
255	10.2.185.252/31	10.2.185.252 – 10.2.185.253	10.2.185.253
256	10.2.185.254/31	10.2.185.254 – 10.2.185.255	10.2.185.255

showing 256 of 512

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 →