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)10.0.214.0/23

network10.0.214.0/23

broadcast10.0.215.255

first host10.0.214.1

last host10.0.215.254

subnet mask255.255.254.0

wildcard0.0.1.255

addresses512

usable hosts510

classA

ipcalc 10.0.214.0/23

address00001010.00000000.11010110.00000000

subnet mask11111111.11111111.11111110.00000000

network00001010.00000000.11010110.00000000

broadcast00001010.00000000.11010111.11111111

green = network part, grey = host part

hex0x0a00d600

decimal167826944

reverse dns0.214.0.10.in-addr.arpa

ipv4-mapped::ffff:a00:d600

/23 split into /32 · 512 subnets

close ×

#	network	host range	broadcast
1	10.0.214.0/32	10.0.214.0 – 10.0.214.0	10.0.214.0
2	10.0.214.1/32	10.0.214.1 – 10.0.214.1	10.0.214.1
3	10.0.214.2/32	10.0.214.2 – 10.0.214.2	10.0.214.2
4	10.0.214.3/32	10.0.214.3 – 10.0.214.3	10.0.214.3
5	10.0.214.4/32	10.0.214.4 – 10.0.214.4	10.0.214.4
6	10.0.214.5/32	10.0.214.5 – 10.0.214.5	10.0.214.5
7	10.0.214.6/32	10.0.214.6 – 10.0.214.6	10.0.214.6
8	10.0.214.7/32	10.0.214.7 – 10.0.214.7	10.0.214.7
9	10.0.214.8/32	10.0.214.8 – 10.0.214.8	10.0.214.8
10	10.0.214.9/32	10.0.214.9 – 10.0.214.9	10.0.214.9
11	10.0.214.10/32	10.0.214.10 – 10.0.214.10	10.0.214.10
12	10.0.214.11/32	10.0.214.11 – 10.0.214.11	10.0.214.11
13	10.0.214.12/32	10.0.214.12 – 10.0.214.12	10.0.214.12
14	10.0.214.13/32	10.0.214.13 – 10.0.214.13	10.0.214.13
15	10.0.214.14/32	10.0.214.14 – 10.0.214.14	10.0.214.14
16	10.0.214.15/32	10.0.214.15 – 10.0.214.15	10.0.214.15
17	10.0.214.16/32	10.0.214.16 – 10.0.214.16	10.0.214.16
18	10.0.214.17/32	10.0.214.17 – 10.0.214.17	10.0.214.17
19	10.0.214.18/32	10.0.214.18 – 10.0.214.18	10.0.214.18
20	10.0.214.19/32	10.0.214.19 – 10.0.214.19	10.0.214.19
21	10.0.214.20/32	10.0.214.20 – 10.0.214.20	10.0.214.20
22	10.0.214.21/32	10.0.214.21 – 10.0.214.21	10.0.214.21
23	10.0.214.22/32	10.0.214.22 – 10.0.214.22	10.0.214.22
24	10.0.214.23/32	10.0.214.23 – 10.0.214.23	10.0.214.23
25	10.0.214.24/32	10.0.214.24 – 10.0.214.24	10.0.214.24
26	10.0.214.25/32	10.0.214.25 – 10.0.214.25	10.0.214.25
27	10.0.214.26/32	10.0.214.26 – 10.0.214.26	10.0.214.26
28	10.0.214.27/32	10.0.214.27 – 10.0.214.27	10.0.214.27
29	10.0.214.28/32	10.0.214.28 – 10.0.214.28	10.0.214.28
30	10.0.214.29/32	10.0.214.29 – 10.0.214.29	10.0.214.29
31	10.0.214.30/32	10.0.214.30 – 10.0.214.30	10.0.214.30
32	10.0.214.31/32	10.0.214.31 – 10.0.214.31	10.0.214.31
33	10.0.214.32/32	10.0.214.32 – 10.0.214.32	10.0.214.32
34	10.0.214.33/32	10.0.214.33 – 10.0.214.33	10.0.214.33
35	10.0.214.34/32	10.0.214.34 – 10.0.214.34	10.0.214.34
36	10.0.214.35/32	10.0.214.35 – 10.0.214.35	10.0.214.35
37	10.0.214.36/32	10.0.214.36 – 10.0.214.36	10.0.214.36
38	10.0.214.37/32	10.0.214.37 – 10.0.214.37	10.0.214.37
39	10.0.214.38/32	10.0.214.38 – 10.0.214.38	10.0.214.38
40	10.0.214.39/32	10.0.214.39 – 10.0.214.39	10.0.214.39
41	10.0.214.40/32	10.0.214.40 – 10.0.214.40	10.0.214.40
42	10.0.214.41/32	10.0.214.41 – 10.0.214.41	10.0.214.41
43	10.0.214.42/32	10.0.214.42 – 10.0.214.42	10.0.214.42
44	10.0.214.43/32	10.0.214.43 – 10.0.214.43	10.0.214.43
45	10.0.214.44/32	10.0.214.44 – 10.0.214.44	10.0.214.44
46	10.0.214.45/32	10.0.214.45 – 10.0.214.45	10.0.214.45
47	10.0.214.46/32	10.0.214.46 – 10.0.214.46	10.0.214.46
48	10.0.214.47/32	10.0.214.47 – 10.0.214.47	10.0.214.47
49	10.0.214.48/32	10.0.214.48 – 10.0.214.48	10.0.214.48
50	10.0.214.49/32	10.0.214.49 – 10.0.214.49	10.0.214.49
51	10.0.214.50/32	10.0.214.50 – 10.0.214.50	10.0.214.50
52	10.0.214.51/32	10.0.214.51 – 10.0.214.51	10.0.214.51
53	10.0.214.52/32	10.0.214.52 – 10.0.214.52	10.0.214.52
54	10.0.214.53/32	10.0.214.53 – 10.0.214.53	10.0.214.53
55	10.0.214.54/32	10.0.214.54 – 10.0.214.54	10.0.214.54
56	10.0.214.55/32	10.0.214.55 – 10.0.214.55	10.0.214.55
57	10.0.214.56/32	10.0.214.56 – 10.0.214.56	10.0.214.56
58	10.0.214.57/32	10.0.214.57 – 10.0.214.57	10.0.214.57
59	10.0.214.58/32	10.0.214.58 – 10.0.214.58	10.0.214.58
60	10.0.214.59/32	10.0.214.59 – 10.0.214.59	10.0.214.59
61	10.0.214.60/32	10.0.214.60 – 10.0.214.60	10.0.214.60
62	10.0.214.61/32	10.0.214.61 – 10.0.214.61	10.0.214.61
63	10.0.214.62/32	10.0.214.62 – 10.0.214.62	10.0.214.62
64	10.0.214.63/32	10.0.214.63 – 10.0.214.63	10.0.214.63
65	10.0.214.64/32	10.0.214.64 – 10.0.214.64	10.0.214.64
66	10.0.214.65/32	10.0.214.65 – 10.0.214.65	10.0.214.65
67	10.0.214.66/32	10.0.214.66 – 10.0.214.66	10.0.214.66
68	10.0.214.67/32	10.0.214.67 – 10.0.214.67	10.0.214.67
69	10.0.214.68/32	10.0.214.68 – 10.0.214.68	10.0.214.68
70	10.0.214.69/32	10.0.214.69 – 10.0.214.69	10.0.214.69
71	10.0.214.70/32	10.0.214.70 – 10.0.214.70	10.0.214.70
72	10.0.214.71/32	10.0.214.71 – 10.0.214.71	10.0.214.71
73	10.0.214.72/32	10.0.214.72 – 10.0.214.72	10.0.214.72
74	10.0.214.73/32	10.0.214.73 – 10.0.214.73	10.0.214.73
75	10.0.214.74/32	10.0.214.74 – 10.0.214.74	10.0.214.74
76	10.0.214.75/32	10.0.214.75 – 10.0.214.75	10.0.214.75
77	10.0.214.76/32	10.0.214.76 – 10.0.214.76	10.0.214.76
78	10.0.214.77/32	10.0.214.77 – 10.0.214.77	10.0.214.77
79	10.0.214.78/32	10.0.214.78 – 10.0.214.78	10.0.214.78
80	10.0.214.79/32	10.0.214.79 – 10.0.214.79	10.0.214.79
81	10.0.214.80/32	10.0.214.80 – 10.0.214.80	10.0.214.80
82	10.0.214.81/32	10.0.214.81 – 10.0.214.81	10.0.214.81
83	10.0.214.82/32	10.0.214.82 – 10.0.214.82	10.0.214.82
84	10.0.214.83/32	10.0.214.83 – 10.0.214.83	10.0.214.83
85	10.0.214.84/32	10.0.214.84 – 10.0.214.84	10.0.214.84
86	10.0.214.85/32	10.0.214.85 – 10.0.214.85	10.0.214.85
87	10.0.214.86/32	10.0.214.86 – 10.0.214.86	10.0.214.86
88	10.0.214.87/32	10.0.214.87 – 10.0.214.87	10.0.214.87
89	10.0.214.88/32	10.0.214.88 – 10.0.214.88	10.0.214.88
90	10.0.214.89/32	10.0.214.89 – 10.0.214.89	10.0.214.89
91	10.0.214.90/32	10.0.214.90 – 10.0.214.90	10.0.214.90
92	10.0.214.91/32	10.0.214.91 – 10.0.214.91	10.0.214.91
93	10.0.214.92/32	10.0.214.92 – 10.0.214.92	10.0.214.92
94	10.0.214.93/32	10.0.214.93 – 10.0.214.93	10.0.214.93
95	10.0.214.94/32	10.0.214.94 – 10.0.214.94	10.0.214.94
96	10.0.214.95/32	10.0.214.95 – 10.0.214.95	10.0.214.95
97	10.0.214.96/32	10.0.214.96 – 10.0.214.96	10.0.214.96
98	10.0.214.97/32	10.0.214.97 – 10.0.214.97	10.0.214.97
99	10.0.214.98/32	10.0.214.98 – 10.0.214.98	10.0.214.98
100	10.0.214.99/32	10.0.214.99 – 10.0.214.99	10.0.214.99
101	10.0.214.100/32	10.0.214.100 – 10.0.214.100	10.0.214.100
102	10.0.214.101/32	10.0.214.101 – 10.0.214.101	10.0.214.101
103	10.0.214.102/32	10.0.214.102 – 10.0.214.102	10.0.214.102
104	10.0.214.103/32	10.0.214.103 – 10.0.214.103	10.0.214.103
105	10.0.214.104/32	10.0.214.104 – 10.0.214.104	10.0.214.104
106	10.0.214.105/32	10.0.214.105 – 10.0.214.105	10.0.214.105
107	10.0.214.106/32	10.0.214.106 – 10.0.214.106	10.0.214.106
108	10.0.214.107/32	10.0.214.107 – 10.0.214.107	10.0.214.107
109	10.0.214.108/32	10.0.214.108 – 10.0.214.108	10.0.214.108
110	10.0.214.109/32	10.0.214.109 – 10.0.214.109	10.0.214.109
111	10.0.214.110/32	10.0.214.110 – 10.0.214.110	10.0.214.110
112	10.0.214.111/32	10.0.214.111 – 10.0.214.111	10.0.214.111
113	10.0.214.112/32	10.0.214.112 – 10.0.214.112	10.0.214.112
114	10.0.214.113/32	10.0.214.113 – 10.0.214.113	10.0.214.113
115	10.0.214.114/32	10.0.214.114 – 10.0.214.114	10.0.214.114
116	10.0.214.115/32	10.0.214.115 – 10.0.214.115	10.0.214.115
117	10.0.214.116/32	10.0.214.116 – 10.0.214.116	10.0.214.116
118	10.0.214.117/32	10.0.214.117 – 10.0.214.117	10.0.214.117
119	10.0.214.118/32	10.0.214.118 – 10.0.214.118	10.0.214.118
120	10.0.214.119/32	10.0.214.119 – 10.0.214.119	10.0.214.119
121	10.0.214.120/32	10.0.214.120 – 10.0.214.120	10.0.214.120
122	10.0.214.121/32	10.0.214.121 – 10.0.214.121	10.0.214.121
123	10.0.214.122/32	10.0.214.122 – 10.0.214.122	10.0.214.122
124	10.0.214.123/32	10.0.214.123 – 10.0.214.123	10.0.214.123
125	10.0.214.124/32	10.0.214.124 – 10.0.214.124	10.0.214.124
126	10.0.214.125/32	10.0.214.125 – 10.0.214.125	10.0.214.125
127	10.0.214.126/32	10.0.214.126 – 10.0.214.126	10.0.214.126
128	10.0.214.127/32	10.0.214.127 – 10.0.214.127	10.0.214.127
129	10.0.214.128/32	10.0.214.128 – 10.0.214.128	10.0.214.128
130	10.0.214.129/32	10.0.214.129 – 10.0.214.129	10.0.214.129
131	10.0.214.130/32	10.0.214.130 – 10.0.214.130	10.0.214.130
132	10.0.214.131/32	10.0.214.131 – 10.0.214.131	10.0.214.131
133	10.0.214.132/32	10.0.214.132 – 10.0.214.132	10.0.214.132
134	10.0.214.133/32	10.0.214.133 – 10.0.214.133	10.0.214.133
135	10.0.214.134/32	10.0.214.134 – 10.0.214.134	10.0.214.134
136	10.0.214.135/32	10.0.214.135 – 10.0.214.135	10.0.214.135
137	10.0.214.136/32	10.0.214.136 – 10.0.214.136	10.0.214.136
138	10.0.214.137/32	10.0.214.137 – 10.0.214.137	10.0.214.137
139	10.0.214.138/32	10.0.214.138 – 10.0.214.138	10.0.214.138
140	10.0.214.139/32	10.0.214.139 – 10.0.214.139	10.0.214.139
141	10.0.214.140/32	10.0.214.140 – 10.0.214.140	10.0.214.140
142	10.0.214.141/32	10.0.214.141 – 10.0.214.141	10.0.214.141
143	10.0.214.142/32	10.0.214.142 – 10.0.214.142	10.0.214.142
144	10.0.214.143/32	10.0.214.143 – 10.0.214.143	10.0.214.143
145	10.0.214.144/32	10.0.214.144 – 10.0.214.144	10.0.214.144
146	10.0.214.145/32	10.0.214.145 – 10.0.214.145	10.0.214.145
147	10.0.214.146/32	10.0.214.146 – 10.0.214.146	10.0.214.146
148	10.0.214.147/32	10.0.214.147 – 10.0.214.147	10.0.214.147
149	10.0.214.148/32	10.0.214.148 – 10.0.214.148	10.0.214.148
150	10.0.214.149/32	10.0.214.149 – 10.0.214.149	10.0.214.149
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157	10.0.214.156/32	10.0.214.156 – 10.0.214.156	10.0.214.156
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159	10.0.214.158/32	10.0.214.158 – 10.0.214.158	10.0.214.158
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210	10.0.214.209/32	10.0.214.209 – 10.0.214.209	10.0.214.209
211	10.0.214.210/32	10.0.214.210 – 10.0.214.210	10.0.214.210
212	10.0.214.211/32	10.0.214.211 – 10.0.214.211	10.0.214.211
213	10.0.214.212/32	10.0.214.212 – 10.0.214.212	10.0.214.212
214	10.0.214.213/32	10.0.214.213 – 10.0.214.213	10.0.214.213
215	10.0.214.214/32	10.0.214.214 – 10.0.214.214	10.0.214.214
216	10.0.214.215/32	10.0.214.215 – 10.0.214.215	10.0.214.215
217	10.0.214.216/32	10.0.214.216 – 10.0.214.216	10.0.214.216
218	10.0.214.217/32	10.0.214.217 – 10.0.214.217	10.0.214.217
219	10.0.214.218/32	10.0.214.218 – 10.0.214.218	10.0.214.218
220	10.0.214.219/32	10.0.214.219 – 10.0.214.219	10.0.214.219
221	10.0.214.220/32	10.0.214.220 – 10.0.214.220	10.0.214.220
222	10.0.214.221/32	10.0.214.221 – 10.0.214.221	10.0.214.221
223	10.0.214.222/32	10.0.214.222 – 10.0.214.222	10.0.214.222
224	10.0.214.223/32	10.0.214.223 – 10.0.214.223	10.0.214.223
225	10.0.214.224/32	10.0.214.224 – 10.0.214.224	10.0.214.224
226	10.0.214.225/32	10.0.214.225 – 10.0.214.225	10.0.214.225
227	10.0.214.226/32	10.0.214.226 – 10.0.214.226	10.0.214.226
228	10.0.214.227/32	10.0.214.227 – 10.0.214.227	10.0.214.227
229	10.0.214.228/32	10.0.214.228 – 10.0.214.228	10.0.214.228
230	10.0.214.229/32	10.0.214.229 – 10.0.214.229	10.0.214.229
231	10.0.214.230/32	10.0.214.230 – 10.0.214.230	10.0.214.230
232	10.0.214.231/32	10.0.214.231 – 10.0.214.231	10.0.214.231
233	10.0.214.232/32	10.0.214.232 – 10.0.214.232	10.0.214.232
234	10.0.214.233/32	10.0.214.233 – 10.0.214.233	10.0.214.233
235	10.0.214.234/32	10.0.214.234 – 10.0.214.234	10.0.214.234
236	10.0.214.235/32	10.0.214.235 – 10.0.214.235	10.0.214.235
237	10.0.214.236/32	10.0.214.236 – 10.0.214.236	10.0.214.236
238	10.0.214.237/32	10.0.214.237 – 10.0.214.237	10.0.214.237
239	10.0.214.238/32	10.0.214.238 – 10.0.214.238	10.0.214.238
240	10.0.214.239/32	10.0.214.239 – 10.0.214.239	10.0.214.239
241	10.0.214.240/32	10.0.214.240 – 10.0.214.240	10.0.214.240
242	10.0.214.241/32	10.0.214.241 – 10.0.214.241	10.0.214.241
243	10.0.214.242/32	10.0.214.242 – 10.0.214.242	10.0.214.242
244	10.0.214.243/32	10.0.214.243 – 10.0.214.243	10.0.214.243
245	10.0.214.244/32	10.0.214.244 – 10.0.214.244	10.0.214.244
246	10.0.214.245/32	10.0.214.245 – 10.0.214.245	10.0.214.245
247	10.0.214.246/32	10.0.214.246 – 10.0.214.246	10.0.214.246
248	10.0.214.247/32	10.0.214.247 – 10.0.214.247	10.0.214.247
249	10.0.214.248/32	10.0.214.248 – 10.0.214.248	10.0.214.248
250	10.0.214.249/32	10.0.214.249 – 10.0.214.249	10.0.214.249
251	10.0.214.250/32	10.0.214.250 – 10.0.214.250	10.0.214.250
252	10.0.214.251/32	10.0.214.251 – 10.0.214.251	10.0.214.251
253	10.0.214.252/32	10.0.214.252 – 10.0.214.252	10.0.214.252
254	10.0.214.253/32	10.0.214.253 – 10.0.214.253	10.0.214.253
255	10.0.214.254/32	10.0.214.254 – 10.0.214.254	10.0.214.254
256	10.0.214.255/32	10.0.214.255 – 10.0.214.255	10.0.214.255

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 /23
/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	1
/24	255.255.255.0	256	254	2 split →
/25	255.255.255.128	128	126	4 split →
/26	255.255.255.192	64	62	8 split →
/27	255.255.255.224	32	30	16 split →
/28	255.255.255.240	16	14	32 split →
/29	255.255.255.248	8	6	64 split →
/30	255.255.255.252	4	2	128 split →
/31	255.255.255.254	2	2	256 split →
/32	255.255.255.255	1	1	512 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 →