/30 IP Bit Mask
Dotted Decimal Mask: 255.255.255.252
Hexadecimal Mask: FF.FF.FF.FC
Effective Hosts: 128
Effective Subnets: 64
Network NumberBroadcastUsable IP RangeUsable IPs /subnet
0
3
1 - 2
2
4
7
5 - 6
2
8
11
9-10
2
12
15
13 - 14
2
16
19
17 - 18
2
20
23
21 - 22
2
24
27
25 - 26
2
28
31
29 - 30
2
32
35
33 - 34
2
36
39
37 - 38
2
40
43
41 - 42
2
44
47
45 - 46
2
48
51
49 - 50
2
52
55
53 - 54
2
56
59
57 - 58
2
60
63
61 - 62
2
64
67
65 - 66
2
68
71
69 - 70
2
72
75
73 - 74
2
76
79
77 - 78
2
80
83
81 - 82
2
84
87
85 - 86
2
88
91
89 - 90
2
92
95
93 - 94
2
96
99
97 - 98
2
100
103
101 - 102
2
104
107
105 - 106
2
108
111
109 - 110
2
112
115
113 - 114
2
116
119
117 - 118
2
120
123
121 - 122
2
124
127
125 - 126
2
128
131
129 - 130
2
132
135
133 - 134
2
136
139
137 - 138
2
140
143
141 - 142
2
144
147
145 - 146
2
148
151
149 - 150
2
152
155
153 - 154
2
156
159
157 - 158
2
160
163
161 - 162
2
164
167
165 - 166
2
168
171
169 - 170
2
172
175
173 - 174
2
176
179
177 - 178
2
180
183
181 - 182
2
184
187
185 - 186
2
188
191
189 - 190
2
192
195
193 - 194
2
196
199
197 - 198
2
200
203
201 - 202
2
204
207
205 - 206
2
208
211
209 - 210
2
212
215
213 - 214
2
216
219
217 - 218
2
220
223
221 - 223
2
224
227
225 - 226
2
228
231
229 - 230
2
232
235
233 - 234
2
236
239
237 - 238
2
240
243
241 - 242
2
244
247
245 - 246
2
248
251
249 - 250
2
252
255
253 - 254
2
 
/29 IP Bit Mask
Dotted Decimal Mask: 255.255.255.248
Hexadecimal Mask: FF.FF.FF.F8
Effective Hosts: 192
Effective Subnets: 32
Network NumberBroadcastUsable IP RangeUsable IPs /subnet
0
7
1 - 6
6
8
15
9 - 14
6
16
23
17 - 22
6
24
31
25 - 30
6
32
39
33 - 38
6
40
47
41 - 46
6
48
55
49 - 54
6
56
63
57 - 62
6
64
71
65 - 70
6
72
79
73 - 78
6
80
87
81 - 86
6
88
95
89 - 94
6
96
103
97 - 102
6
104
111
105 - 110
6
112
119
113 - 118
6
120
127
121 - 126
6
128
135
129 - 134
6
136
143
137 - 142
6
144
151
145 - 150
6
152
159
153 - 158
6
160
167
161 - 166
6
168
175
169 - 174
6
176
183
177 - 182
6
184
191
185 - 190
6
192
199
193 - 198
6
200
207
201 - 206
6
208
215
209 - 214
6
216
223
217 - 222
6
224
231
225 - 230
6
232
239
233 - 238
6
240
247
241 - 246
6
248
255
248 - 254
6
/28 IP Bit Mask
Dotted Decimal Mask: 255.255.255.240
Hexadecimal Mask: FF.FF.FF.F0
Effective Hosts: 224
Effective Subnets: 16
Network NumberBroadcastUsable IP RangeUsable IPs /subnet
0
15
1 - 14
14
16
31
17 - 30
14
32
47
33-46
14
48
63
49-62
14
64
79
65-78
14
80
95
81-94
14
96
111
97-110
14
112
127
113-126
14
128
143
129-142
14
144
159
145-158
14
160
175
161-174
14
176
191
177-190
14
192
207
193-206
14
208
223
209-222
14
224
239
225-238
14
240
255
241-254
14
/27 IP Bit Mask
Dotted Decimal Mask: 255.255.255.224
Hexadecimal Mask: FF.FF.FF.E0
Effective Hosts: 240
Effective Subnets: 8
Network NumberBroadcastUsable IP RangeUsable IPs /subnet
0
31
1 - 30
30
32
63
33 - 62
30
64
95
65 - 94
30
96
127
97 - 126
30
128
159
129 - 158
30
160
191
161 - 190
30
192
223
193 - 222
30
224
255
225 - 254
30
/26 IP Bit Mask
Dotted Decimal Mask: 255.255.255.192
Hexadecimal Mask: FF.FF.FF.C0
Effective Hosts: 248
Effective Subnets: 4
Network NumberBroadcastUsable IP RangeUsable IPs /subnet
0
63
1 - 62
62
64
127
65 - 126
62
128
191
129 - 190
62
192
255
193 - 254
62
/25 IP Bit Mask
Dotted Decimal Mask: 255.255.255.128
Hexadecimal Mask: FF.FF.FF.80
Effective Hosts: 252
Effective Subnets: 2
Network NumberBroadcastUsable IP RangeUsable IPs /subnet
0
127
1-126
126
128
255
129-254
126
/24 IP Bit Mask
Dotted Decimal Mask: 255.255.255.0
Hexadecimal Mask: FF.FF.FF.00
Effective Hosts: 254
Effective Subnets: 1
Network NumberBroadcastUsable IP RangeUsable IPs /subnet
0
255
1-254
254
Bit MaskMaskBroadcastUsable HostsEquivalent /24 BlocksTotal Hosts
/24 255.255.255.0 x.y.0.255 x.y.0.1 - x.y.0.254
1
254
/23 255.255.254.0 x.y.1.255 x.y.0.1 - x.y.1.254
2
510
/22 255.255.252.0 x.y.3.255 x.y.0.1 - x.y.3.254
4
1,022
/21 255.255.248.0 x.y.7.255 x.y.0.1 - x.y.7.254
8
2,046
/20 255.255.240.0 x.y.15.255 x.y.0.1 - x.y.15.254
16
4,094
/19 255.255.224.0 x.y.31.255 x.y.0.1 - x.y.31.254
32
8,190
/18 255.255.192.0 x.y.63.255 x.y.0.1 - x.y.63.254
64
16,382
/17 255.255.128.0 x.y.127.255 x.y.0.1 - x.y.127.254
128
32,766
/16 255.255.0.0 x.0.255.255 x.0.0.1 - x.0.255.254
256
65,536
/15 255.254.0.0 x.1.255.255 x.0.0.1 - x.1.255.254
512
131,072
/14 255.252.0.0 x.3.255.255 x.0.0.1 - x.3.255.254
1024
262,144
/13 255.248.0.0 x.7.255.255 x.0.0.1 - x.7.255.254
2048
524,288
/12 255.240.0.0 x.15.255.255 x.0.0.1 - x.15.255.254
4096
1,048,576
/11 255.224.0.0 x.31.255.255 x.0.0.1 - x.31.255.254
8192
2,097,152
/10 255.192.0.0 x.63.255.255 x.0.0.1 - x.63.255.254
16384
 4,194,304
/9 255.128.0.0 x.127.255.255 x.0.0.1 - x.127.255.254
32768
8,388,608
/8 255.0.0.0 x.255.255.255 x.0.0.1 - x.255.255.254
65536
16,777,216

 

Private networks

Bit MaskMaskBroadcastUsable HostsTotal Hosts
/8 255.0.0.0 10.255.255.255 10.0.0.1 - 10.255.255.254
16,777,216
/12 255.240.0.0 172.31.255.255 172.16.0.1 - 172.31.255.254 1,048,576
/16 255.252.0.0 192.168.0.0 192.168.0.1 - 192.168.255.254 65,536

 

 

ClassBit MaskStart addressEnd addressNetworksaddresses per network
A /8 0.0.0.0 127.255.255.255
128
16,777,216
B /16 128.0.0.0 191.255.255.255
16,384
 65,536
C /24 192.0.0.0 223.255.255.255
2,097,152
 256
D Multicast 224.0.0.0 239.255.255.255
not defined
 not defined
E Reserverd 240.0.0.0 255.255.255.255
not defined
 not defined

Meer informatie: https://en.wikipedia.org/wiki/Reserved_IP_addresses