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)10.232.111.0/24

network10.232.111.0/24

broadcast10.232.111.255

first host10.232.111.1

last host10.232.111.254

subnet mask255.255.255.0

wildcard0.0.0.255

addresses256

usable hosts254

classA

ipcalc 10.232.111.0/24

address00001010.11101000.01101111.00000000

subnet mask11111111.11111111.11111111.00000000

network00001010.11101000.01101111.00000000

broadcast00001010.11101000.01101111.11111111

green = network part, grey = host part

hex0x0ae86f00

decimal183004928

reverse dns0.111.232.10.in-addr.arpa

ipv4-mapped::ffff:ae8:6f00

/24 split into /32 · 256 subnets

close ×

#	network	host range	broadcast
1	10.232.111.0/32	10.232.111.0 – 10.232.111.0	10.232.111.0
2	10.232.111.1/32	10.232.111.1 – 10.232.111.1	10.232.111.1
3	10.232.111.2/32	10.232.111.2 – 10.232.111.2	10.232.111.2
4	10.232.111.3/32	10.232.111.3 – 10.232.111.3	10.232.111.3
5	10.232.111.4/32	10.232.111.4 – 10.232.111.4	10.232.111.4
6	10.232.111.5/32	10.232.111.5 – 10.232.111.5	10.232.111.5
7	10.232.111.6/32	10.232.111.6 – 10.232.111.6	10.232.111.6
8	10.232.111.7/32	10.232.111.7 – 10.232.111.7	10.232.111.7
9	10.232.111.8/32	10.232.111.8 – 10.232.111.8	10.232.111.8
10	10.232.111.9/32	10.232.111.9 – 10.232.111.9	10.232.111.9
11	10.232.111.10/32	10.232.111.10 – 10.232.111.10	10.232.111.10
12	10.232.111.11/32	10.232.111.11 – 10.232.111.11	10.232.111.11
13	10.232.111.12/32	10.232.111.12 – 10.232.111.12	10.232.111.12
14	10.232.111.13/32	10.232.111.13 – 10.232.111.13	10.232.111.13
15	10.232.111.14/32	10.232.111.14 – 10.232.111.14	10.232.111.14
16	10.232.111.15/32	10.232.111.15 – 10.232.111.15	10.232.111.15
17	10.232.111.16/32	10.232.111.16 – 10.232.111.16	10.232.111.16
18	10.232.111.17/32	10.232.111.17 – 10.232.111.17	10.232.111.17
19	10.232.111.18/32	10.232.111.18 – 10.232.111.18	10.232.111.18
20	10.232.111.19/32	10.232.111.19 – 10.232.111.19	10.232.111.19
21	10.232.111.20/32	10.232.111.20 – 10.232.111.20	10.232.111.20
22	10.232.111.21/32	10.232.111.21 – 10.232.111.21	10.232.111.21
23	10.232.111.22/32	10.232.111.22 – 10.232.111.22	10.232.111.22
24	10.232.111.23/32	10.232.111.23 – 10.232.111.23	10.232.111.23
25	10.232.111.24/32	10.232.111.24 – 10.232.111.24	10.232.111.24
26	10.232.111.25/32	10.232.111.25 – 10.232.111.25	10.232.111.25
27	10.232.111.26/32	10.232.111.26 – 10.232.111.26	10.232.111.26
28	10.232.111.27/32	10.232.111.27 – 10.232.111.27	10.232.111.27
29	10.232.111.28/32	10.232.111.28 – 10.232.111.28	10.232.111.28
30	10.232.111.29/32	10.232.111.29 – 10.232.111.29	10.232.111.29
31	10.232.111.30/32	10.232.111.30 – 10.232.111.30	10.232.111.30
32	10.232.111.31/32	10.232.111.31 – 10.232.111.31	10.232.111.31
33	10.232.111.32/32	10.232.111.32 – 10.232.111.32	10.232.111.32
34	10.232.111.33/32	10.232.111.33 – 10.232.111.33	10.232.111.33
35	10.232.111.34/32	10.232.111.34 – 10.232.111.34	10.232.111.34
36	10.232.111.35/32	10.232.111.35 – 10.232.111.35	10.232.111.35
37	10.232.111.36/32	10.232.111.36 – 10.232.111.36	10.232.111.36
38	10.232.111.37/32	10.232.111.37 – 10.232.111.37	10.232.111.37
39	10.232.111.38/32	10.232.111.38 – 10.232.111.38	10.232.111.38
40	10.232.111.39/32	10.232.111.39 – 10.232.111.39	10.232.111.39
41	10.232.111.40/32	10.232.111.40 – 10.232.111.40	10.232.111.40
42	10.232.111.41/32	10.232.111.41 – 10.232.111.41	10.232.111.41
43	10.232.111.42/32	10.232.111.42 – 10.232.111.42	10.232.111.42
44	10.232.111.43/32	10.232.111.43 – 10.232.111.43	10.232.111.43
45	10.232.111.44/32	10.232.111.44 – 10.232.111.44	10.232.111.44
46	10.232.111.45/32	10.232.111.45 – 10.232.111.45	10.232.111.45
47	10.232.111.46/32	10.232.111.46 – 10.232.111.46	10.232.111.46
48	10.232.111.47/32	10.232.111.47 – 10.232.111.47	10.232.111.47
49	10.232.111.48/32	10.232.111.48 – 10.232.111.48	10.232.111.48
50	10.232.111.49/32	10.232.111.49 – 10.232.111.49	10.232.111.49
51	10.232.111.50/32	10.232.111.50 – 10.232.111.50	10.232.111.50
52	10.232.111.51/32	10.232.111.51 – 10.232.111.51	10.232.111.51
53	10.232.111.52/32	10.232.111.52 – 10.232.111.52	10.232.111.52
54	10.232.111.53/32	10.232.111.53 – 10.232.111.53	10.232.111.53
55	10.232.111.54/32	10.232.111.54 – 10.232.111.54	10.232.111.54
56	10.232.111.55/32	10.232.111.55 – 10.232.111.55	10.232.111.55
57	10.232.111.56/32	10.232.111.56 – 10.232.111.56	10.232.111.56
58	10.232.111.57/32	10.232.111.57 – 10.232.111.57	10.232.111.57
59	10.232.111.58/32	10.232.111.58 – 10.232.111.58	10.232.111.58
60	10.232.111.59/32	10.232.111.59 – 10.232.111.59	10.232.111.59
61	10.232.111.60/32	10.232.111.60 – 10.232.111.60	10.232.111.60
62	10.232.111.61/32	10.232.111.61 – 10.232.111.61	10.232.111.61
63	10.232.111.62/32	10.232.111.62 – 10.232.111.62	10.232.111.62
64	10.232.111.63/32	10.232.111.63 – 10.232.111.63	10.232.111.63
65	10.232.111.64/32	10.232.111.64 – 10.232.111.64	10.232.111.64
66	10.232.111.65/32	10.232.111.65 – 10.232.111.65	10.232.111.65
67	10.232.111.66/32	10.232.111.66 – 10.232.111.66	10.232.111.66
68	10.232.111.67/32	10.232.111.67 – 10.232.111.67	10.232.111.67
69	10.232.111.68/32	10.232.111.68 – 10.232.111.68	10.232.111.68
70	10.232.111.69/32	10.232.111.69 – 10.232.111.69	10.232.111.69
71	10.232.111.70/32	10.232.111.70 – 10.232.111.70	10.232.111.70
72	10.232.111.71/32	10.232.111.71 – 10.232.111.71	10.232.111.71
73	10.232.111.72/32	10.232.111.72 – 10.232.111.72	10.232.111.72
74	10.232.111.73/32	10.232.111.73 – 10.232.111.73	10.232.111.73
75	10.232.111.74/32	10.232.111.74 – 10.232.111.74	10.232.111.74
76	10.232.111.75/32	10.232.111.75 – 10.232.111.75	10.232.111.75
77	10.232.111.76/32	10.232.111.76 – 10.232.111.76	10.232.111.76
78	10.232.111.77/32	10.232.111.77 – 10.232.111.77	10.232.111.77
79	10.232.111.78/32	10.232.111.78 – 10.232.111.78	10.232.111.78
80	10.232.111.79/32	10.232.111.79 – 10.232.111.79	10.232.111.79
81	10.232.111.80/32	10.232.111.80 – 10.232.111.80	10.232.111.80
82	10.232.111.81/32	10.232.111.81 – 10.232.111.81	10.232.111.81
83	10.232.111.82/32	10.232.111.82 – 10.232.111.82	10.232.111.82
84	10.232.111.83/32	10.232.111.83 – 10.232.111.83	10.232.111.83
85	10.232.111.84/32	10.232.111.84 – 10.232.111.84	10.232.111.84
86	10.232.111.85/32	10.232.111.85 – 10.232.111.85	10.232.111.85
87	10.232.111.86/32	10.232.111.86 – 10.232.111.86	10.232.111.86
88	10.232.111.87/32	10.232.111.87 – 10.232.111.87	10.232.111.87
89	10.232.111.88/32	10.232.111.88 – 10.232.111.88	10.232.111.88
90	10.232.111.89/32	10.232.111.89 – 10.232.111.89	10.232.111.89
91	10.232.111.90/32	10.232.111.90 – 10.232.111.90	10.232.111.90
92	10.232.111.91/32	10.232.111.91 – 10.232.111.91	10.232.111.91
93	10.232.111.92/32	10.232.111.92 – 10.232.111.92	10.232.111.92
94	10.232.111.93/32	10.232.111.93 – 10.232.111.93	10.232.111.93
95	10.232.111.94/32	10.232.111.94 – 10.232.111.94	10.232.111.94
96	10.232.111.95/32	10.232.111.95 – 10.232.111.95	10.232.111.95
97	10.232.111.96/32	10.232.111.96 – 10.232.111.96	10.232.111.96
98	10.232.111.97/32	10.232.111.97 – 10.232.111.97	10.232.111.97
99	10.232.111.98/32	10.232.111.98 – 10.232.111.98	10.232.111.98
100	10.232.111.99/32	10.232.111.99 – 10.232.111.99	10.232.111.99
101	10.232.111.100/32	10.232.111.100 – 10.232.111.100	10.232.111.100
102	10.232.111.101/32	10.232.111.101 – 10.232.111.101	10.232.111.101
103	10.232.111.102/32	10.232.111.102 – 10.232.111.102	10.232.111.102
104	10.232.111.103/32	10.232.111.103 – 10.232.111.103	10.232.111.103
105	10.232.111.104/32	10.232.111.104 – 10.232.111.104	10.232.111.104
106	10.232.111.105/32	10.232.111.105 – 10.232.111.105	10.232.111.105
107	10.232.111.106/32	10.232.111.106 – 10.232.111.106	10.232.111.106
108	10.232.111.107/32	10.232.111.107 – 10.232.111.107	10.232.111.107
109	10.232.111.108/32	10.232.111.108 – 10.232.111.108	10.232.111.108
110	10.232.111.109/32	10.232.111.109 – 10.232.111.109	10.232.111.109
111	10.232.111.110/32	10.232.111.110 – 10.232.111.110	10.232.111.110
112	10.232.111.111/32	10.232.111.111 – 10.232.111.111	10.232.111.111
113	10.232.111.112/32	10.232.111.112 – 10.232.111.112	10.232.111.112
114	10.232.111.113/32	10.232.111.113 – 10.232.111.113	10.232.111.113
115	10.232.111.114/32	10.232.111.114 – 10.232.111.114	10.232.111.114
116	10.232.111.115/32	10.232.111.115 – 10.232.111.115	10.232.111.115
117	10.232.111.116/32	10.232.111.116 – 10.232.111.116	10.232.111.116
118	10.232.111.117/32	10.232.111.117 – 10.232.111.117	10.232.111.117
119	10.232.111.118/32	10.232.111.118 – 10.232.111.118	10.232.111.118
120	10.232.111.119/32	10.232.111.119 – 10.232.111.119	10.232.111.119
121	10.232.111.120/32	10.232.111.120 – 10.232.111.120	10.232.111.120
122	10.232.111.121/32	10.232.111.121 – 10.232.111.121	10.232.111.121
123	10.232.111.122/32	10.232.111.122 – 10.232.111.122	10.232.111.122
124	10.232.111.123/32	10.232.111.123 – 10.232.111.123	10.232.111.123
125	10.232.111.124/32	10.232.111.124 – 10.232.111.124	10.232.111.124
126	10.232.111.125/32	10.232.111.125 – 10.232.111.125	10.232.111.125
127	10.232.111.126/32	10.232.111.126 – 10.232.111.126	10.232.111.126
128	10.232.111.127/32	10.232.111.127 – 10.232.111.127	10.232.111.127
129	10.232.111.128/32	10.232.111.128 – 10.232.111.128	10.232.111.128
130	10.232.111.129/32	10.232.111.129 – 10.232.111.129	10.232.111.129
131	10.232.111.130/32	10.232.111.130 – 10.232.111.130	10.232.111.130
132	10.232.111.131/32	10.232.111.131 – 10.232.111.131	10.232.111.131
133	10.232.111.132/32	10.232.111.132 – 10.232.111.132	10.232.111.132
134	10.232.111.133/32	10.232.111.133 – 10.232.111.133	10.232.111.133
135	10.232.111.134/32	10.232.111.134 – 10.232.111.134	10.232.111.134
136	10.232.111.135/32	10.232.111.135 – 10.232.111.135	10.232.111.135
137	10.232.111.136/32	10.232.111.136 – 10.232.111.136	10.232.111.136
138	10.232.111.137/32	10.232.111.137 – 10.232.111.137	10.232.111.137
139	10.232.111.138/32	10.232.111.138 – 10.232.111.138	10.232.111.138
140	10.232.111.139/32	10.232.111.139 – 10.232.111.139	10.232.111.139
141	10.232.111.140/32	10.232.111.140 – 10.232.111.140	10.232.111.140
142	10.232.111.141/32	10.232.111.141 – 10.232.111.141	10.232.111.141
143	10.232.111.142/32	10.232.111.142 – 10.232.111.142	10.232.111.142
144	10.232.111.143/32	10.232.111.143 – 10.232.111.143	10.232.111.143
145	10.232.111.144/32	10.232.111.144 – 10.232.111.144	10.232.111.144
146	10.232.111.145/32	10.232.111.145 – 10.232.111.145	10.232.111.145
147	10.232.111.146/32	10.232.111.146 – 10.232.111.146	10.232.111.146
148	10.232.111.147/32	10.232.111.147 – 10.232.111.147	10.232.111.147
149	10.232.111.148/32	10.232.111.148 – 10.232.111.148	10.232.111.148
150	10.232.111.149/32	10.232.111.149 – 10.232.111.149	10.232.111.149
151	10.232.111.150/32	10.232.111.150 – 10.232.111.150	10.232.111.150
152	10.232.111.151/32	10.232.111.151 – 10.232.111.151	10.232.111.151
153	10.232.111.152/32	10.232.111.152 – 10.232.111.152	10.232.111.152
154	10.232.111.153/32	10.232.111.153 – 10.232.111.153	10.232.111.153
155	10.232.111.154/32	10.232.111.154 – 10.232.111.154	10.232.111.154
156	10.232.111.155/32	10.232.111.155 – 10.232.111.155	10.232.111.155
157	10.232.111.156/32	10.232.111.156 – 10.232.111.156	10.232.111.156
158	10.232.111.157/32	10.232.111.157 – 10.232.111.157	10.232.111.157
159	10.232.111.158/32	10.232.111.158 – 10.232.111.158	10.232.111.158
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210	10.232.111.209/32	10.232.111.209 – 10.232.111.209	10.232.111.209
211	10.232.111.210/32	10.232.111.210 – 10.232.111.210	10.232.111.210
212	10.232.111.211/32	10.232.111.211 – 10.232.111.211	10.232.111.211
213	10.232.111.212/32	10.232.111.212 – 10.232.111.212	10.232.111.212
214	10.232.111.213/32	10.232.111.213 – 10.232.111.213	10.232.111.213
215	10.232.111.214/32	10.232.111.214 – 10.232.111.214	10.232.111.214
216	10.232.111.215/32	10.232.111.215 – 10.232.111.215	10.232.111.215
217	10.232.111.216/32	10.232.111.216 – 10.232.111.216	10.232.111.216
218	10.232.111.217/32	10.232.111.217 – 10.232.111.217	10.232.111.217
219	10.232.111.218/32	10.232.111.218 – 10.232.111.218	10.232.111.218
220	10.232.111.219/32	10.232.111.219 – 10.232.111.219	10.232.111.219
221	10.232.111.220/32	10.232.111.220 – 10.232.111.220	10.232.111.220
222	10.232.111.221/32	10.232.111.221 – 10.232.111.221	10.232.111.221
223	10.232.111.222/32	10.232.111.222 – 10.232.111.222	10.232.111.222
224	10.232.111.223/32	10.232.111.223 – 10.232.111.223	10.232.111.223
225	10.232.111.224/32	10.232.111.224 – 10.232.111.224	10.232.111.224
226	10.232.111.225/32	10.232.111.225 – 10.232.111.225	10.232.111.225
227	10.232.111.226/32	10.232.111.226 – 10.232.111.226	10.232.111.226
228	10.232.111.227/32	10.232.111.227 – 10.232.111.227	10.232.111.227
229	10.232.111.228/32	10.232.111.228 – 10.232.111.228	10.232.111.228
230	10.232.111.229/32	10.232.111.229 – 10.232.111.229	10.232.111.229
231	10.232.111.230/32	10.232.111.230 – 10.232.111.230	10.232.111.230
232	10.232.111.231/32	10.232.111.231 – 10.232.111.231	10.232.111.231
233	10.232.111.232/32	10.232.111.232 – 10.232.111.232	10.232.111.232
234	10.232.111.233/32	10.232.111.233 – 10.232.111.233	10.232.111.233
235	10.232.111.234/32	10.232.111.234 – 10.232.111.234	10.232.111.234
236	10.232.111.235/32	10.232.111.235 – 10.232.111.235	10.232.111.235
237	10.232.111.236/32	10.232.111.236 – 10.232.111.236	10.232.111.236
238	10.232.111.237/32	10.232.111.237 – 10.232.111.237	10.232.111.237
239	10.232.111.238/32	10.232.111.238 – 10.232.111.238	10.232.111.238
240	10.232.111.239/32	10.232.111.239 – 10.232.111.239	10.232.111.239
241	10.232.111.240/32	10.232.111.240 – 10.232.111.240	10.232.111.240
242	10.232.111.241/32	10.232.111.241 – 10.232.111.241	10.232.111.241
243	10.232.111.242/32	10.232.111.242 – 10.232.111.242	10.232.111.242
244	10.232.111.243/32	10.232.111.243 – 10.232.111.243	10.232.111.243
245	10.232.111.244/32	10.232.111.244 – 10.232.111.244	10.232.111.244
246	10.232.111.245/32	10.232.111.245 – 10.232.111.245	10.232.111.245
247	10.232.111.246/32	10.232.111.246 – 10.232.111.246	10.232.111.246
248	10.232.111.247/32	10.232.111.247 – 10.232.111.247	10.232.111.247
249	10.232.111.248/32	10.232.111.248 – 10.232.111.248	10.232.111.248
250	10.232.111.249/32	10.232.111.249 – 10.232.111.249	10.232.111.249
251	10.232.111.250/32	10.232.111.250 – 10.232.111.250	10.232.111.250
252	10.232.111.251/32	10.232.111.251 – 10.232.111.251	10.232.111.251
253	10.232.111.252/32	10.232.111.252 – 10.232.111.252	10.232.111.252
254	10.232.111.253/32	10.232.111.253 – 10.232.111.253	10.232.111.253
255	10.232.111.254/32	10.232.111.254 – 10.232.111.254	10.232.111.254
256	10.232.111.255/32	10.232.111.255 – 10.232.111.255	10.232.111.255

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 →