| SPS Home > Dgreath > IP Subnets |
INTERNET PROTOCOL (IP) |
| CLASS A SUBNETS | |||||||||
| CIDR | /8 | /9 | /10 | /11 | /12 | /13 | /14 | /15 | /16 |
| Mask | 255 | 128 | 192 | 224 | 240 | 248 | 252 | 254 | 255 |
| Binary | 10000000 | 11000000 | 11100000 | 11110000 | 11111000 | 11111100 | 11111110 | 11111111 | |
| # Subnets | 1 | 2 | 4 | 8 | 16 | 32 | 64 | 128 | 1 |
| # Hosts | 16777214 | 8388606 | 4194304 | 2097150 | 1048574 | 524286 | 262142 | 131070 | 65534 |
| CLASS B SUBNETS | |||||||||
| CIDR | /16 | /17 | /18 | /19 | /20 | /21 | /22 | /23 | /24 |
| Mask | 255 | 128 | 192 | 224 | 240 | 248 | 252 | 254 | 255 |
| Binary | 10000000 | 11000000 | 11100000 | 11110000 | 11111000 | 11111100 | 11111110 | 11111111 | |
| # Subnets | 1 | 2 | 4 | 8 | 16 | 32 | 64 | 128 | 1 |
| # Hosts | 65534 | 32766 | 16382 | 8190 | 4094 | 2046 | 1022 | 510 | 254 |
| CLASS C SUBNETS | |||||||||
| CIDR | /24 | /25 | /26 | /27 | /28 | /29 | /30 | /31 | /32 |
| Mask | 255 | 128 | 192 | 224 | 240 | 248 | 252 | 254 | 255 |
| Binary | 10000000 | 11000000 | 11100000 | 11110000 | 11111000 | 11111100 | 11111110 | 11111111 | |
| # Subnets | 1 | 2 | 4 | 8 | 16 | 32 | 64 | 128 | 0 |
| # Hosts | 254 | 126 | 62 | 30 | 14 | 6 | 2 | 0 | 0 |
| 0 | subnet |
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| 1 | broadcast |
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| 2 | subnet |
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| 3 | broadcast |
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| 4 | subnet |
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| 5 | broadcast |
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| 8 | subnet |
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| 9 | broadcast |
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| 10 | subnet |
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| 11 | broadcast |
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| 12 | subnet |
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| 13 | broadcast |
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| 15 | broadcast |
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| 16 | subnet |
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| 17 | broadcast |
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| 18 | subnet |
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| 19 | broadcast |
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| 20 | subnet |
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| 21 | broadcast |
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| 22 | subnet |
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| 23 | broadcast |
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| 24 | subnet |
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| 25 | broadcast |
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| 26 | subnet |
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| 27 | broadcast |
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| 28 | subnet |
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| 29 | broadcast |
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| 30 | subnet |
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| 31 | broadcast |
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| 32 | subnet |
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| 33 | broadcast |
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| 35 | broadcast |
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| 37 | broadcast |
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| 39 | broadcast |
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| 40 | subnet |
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| 41 | broadcast |
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| 42 | subnet |
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| 43 | broadcast |
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| 44 | subnet |
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| 45 | broadcast |
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| 47 | broadcast |
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| 48 | subnet |
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| 49 | broadcast |
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| 51 | broadcast |
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| 52 | subnet |
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| 53 | broadcast |
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| 55 | broadcast |
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| 56 | subnet |
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| 57 | broadcast |
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| 58 | subnet |
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| 59 | broadcast |
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| 60 | subnet |
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| 61 | broadcast |
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| 62 | subnet |
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| 63 | broadcast |
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| 64 | subnet |
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| 65 | broadcast |
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| 67 | broadcast |
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| 68 | subnet |
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| 69 | broadcast |
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| 70 | subnet |
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| 71 | broadcast |
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| 72 | subnet |
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| 73 | broadcast |
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| 75 | broadcast |
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| 76 | subnet |
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| 77 | broadcast |
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| 78 | subnet |
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| 79 | broadcast |
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| 80 | subnet |
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| 81 | broadcast |
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| 83 | broadcast |
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| 84 | subnet |
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| 85 | broadcast |
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| 87 | broadcast |
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| 88 | subnet |
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| 89 | broadcast |
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| 90 | subnet |
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| 91 | broadcast |
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| 92 | subnet |
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| 93 | broadcast |
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| 94 | subnet |
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| 95 | broadcast |
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| 96 | subnet |
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| 97 | broadcast |
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| 98 | subnet |
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| 99 | broadcast |
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| 100 | subnet |
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| 101 | broadcast |
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| 102 | subnet |
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| 103 | broadcast |
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| 104 | subnet |
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| 105 | broadcast |
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| 106 | subnet |
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| 107 | broadcast |
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| 108 | subnet |
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| 109 | broadcast |
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| 110 | subnet |
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| 111 | broadcast |
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| 112 | subnet |
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| 113 | broadcast |
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| 114 | subnet |
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| 115 | broadcast |
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| 116 | subnet |
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| 117 | broadcast |
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| 118 | subnet |
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| 119 | broadcast |
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| 120 | subnet |
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| 121 | broadcast |
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| 122 | subnet |
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| 123 | broadcast |
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| 124 | subnet |
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| 125 | broadcast |
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| 126 | subnet |
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| 127 | broadcast |
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| 128 | subnet |
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| 129 | broadcast |
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| 130 | subnet |
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| 131 | broadcast |
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| 132 | subnet |
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| 133 | broadcast |
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| 134 | subnet |
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| 135 | broadcast |
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| 136 | subnet |
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| 137 | broadcast |
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| 138 | subnet |
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| 139 | broadcast |
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| 140 | subnet |
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| 141 | broadcast |
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| 142 | subnet |
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| 143 | broadcast |
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| 144 | subnet |
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| 145 | broadcast |
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| 146 | subnet |
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| 147 | broadcast |
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| 148 | subnet |
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| 149 | broadcast |
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| 150 | subnet |
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| 151 | broadcast |
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| 152 | subnet |
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| 153 | broadcast |
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| 154 | subnet |
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| 155 | broadcast |
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| 156 | subnet |
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| 157 | broadcast |
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| 158 | subnet |
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| 159 | broadcast |
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| 160 | subnet |
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| 161 | broadcast |
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| 162 | subnet |
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| 163 | broadcast |
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| 164 | subnet |
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| 165 | broadcast |
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| 166 | subnet |
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| 167 | broadcast |
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| 168 | subnet |
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| 169 | broadcast |
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| 170 | subnet |
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| 171 | broadcast |
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| 172 | subnet |
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| 173 | broadcast |
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| 174 | subnet |
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| 175 | broadcast |
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| 176 | subnet |
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| 177 | broadcast |
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| 178 | subnet |
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| 179 | broadcast |
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| 180 | subnet |
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| 181 | broadcast |
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| 182 | subnet |
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| 183 | broadcast |
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| 184 | subnet |
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| 185 | broadcast |
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| 186 | subnet |
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| 187 | broadcast |
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| 188 | subnet |
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| 189 | broadcast |
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| 190 | subnet |
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| 191 | broadcast |
broadcast |
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broadcast |
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| 192 | subnet |
subnet |
subnet |
subnet |
subnet |
subnet |
broadcast |
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| 193 | broadcast |
broadcast |
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| 194 | subnet |
broadcast |
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| 195 | broadcast |
broadcast |
broadcast |
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| 196 | subnet |
subnet |
broadcast |
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| 197 | broadcast |
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| 198 | subnet |
broadcast |
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| 199 | broadcast |
broadcast |
broadcast |
broadcast |
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| 200 | subnet |
subnet |
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broadcast |
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| 201 | broadcast |
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| 202 | subnet |
broadcast |
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| 203 | broadcast |
broadcast |
broadcast |
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| 204 | subnet |
subnet |
broadcast |
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| 205 | broadcast |
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| 206 | subnet |
broadcast |
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| 207 | broadcast |
broadcast |
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| 208 | subnet |
subnet |
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broadcast |
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| 209 | broadcast |
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| 210 | subnet |
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| 211 | broadcast |
broadcast |
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| 212 | subnet |
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broadcast |
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| 213 | broadcast |
broadcast |
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| 214 | subnet |
broadcast |
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| 215 | broadcast |
broadcast |
broadcast |
broadcast |
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| 216 | subnet |
subnet |
subnet |
broadcast |
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| 217 | broadcast |
broadcast |
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| 218 | subnet |
broadcast |
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| 219 | broadcast |
broadcast |
broadcast |
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| 220 | subnet |
subnet |
broadcast |
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| 221 | broadcast |
broadcast |
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| 222 | subnet |
broadcast |
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| 223 | broadcast |
broadcast |
broadcast |
broadcast |
broadcast |
broadcast |
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| 224 | subnet |
subnet |
subnet |
subnet |
subnet |
broadcast |
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| 225 | broadcast |
broadcast |
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| 226 | subnet |
broadcast |
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| 227 | broadcast |
broadcast |
broadcast |
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| 228 | subnet |
subnet |
broadcast |
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| 229 | broadcast |
broadcast |
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| 230 | subnet |
broadcast |
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| 231 | broadcast |
broadcast |
broadcast |
broadcast |
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| 232 | subnet |
subnet |
subnet |
broadcast |
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| 233 | broadcast |
broadcast |
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| 234 | subnet |
broadcast |
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| 235 | broadcast |
broadcast |
broadcast |
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| 236 | subnet |
subnet |
broadcast |
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| 237 | broadcast |
broadcast |
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| 238 | subnet |
broadcast |
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| 239 | broadcast |
broadcast |
broadcast |
broadcast |
broadcast |
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| 240 | subnet |
subnet |
subnet |
subnet |
broadcast |
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| 241 | broadcast |
broadcast |
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| 242 | subnet |
broadcast |
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| 243 | broadcast |
broadcast |
broadcast |
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| 244 | subnet |
subnet |
broadcast |
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| 245 | broadcast |
broadcast |
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| 246 | subnet |
broadcast |
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| 247 | broadcast |
broadcast |
broadcast |
broadcast |
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| 248 | subnet |
subnet |
subnet |
broadcast |
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| 249 | broadcast |
broadcast |
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| 250 | subnet |
broadcast |
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| 251 | broadcast |
broadcast |
broadcast |
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| 252 | subnet |
subnet |
broadcast |
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| 253 | broadcast |
broadcast |
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| 254 | subnet |
broadcast |
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| 255 | broadcast |
broadcast |
broadcast |
broadcast |
broadcast |
broadcast |
broadcast |
broadcast |
broadcast |
NOTES: |
| CIDR = Classless Interdomain Routing |
| This table shows the valid IP addresses for various combinations of IP subnet masks. The cells shaded red are valid IPs. The respective Subnet IP is shown in black above the IP and its broadcast IP is in blue below the IP. The Subnet IP is the gateway router IP address. The table is valid for both CIDR and Class C schemes. |