可用IP查询，ip段/27/29/30网关,子网掩码，广播地址查询
<h4>可用IP查询,IP段对应表</h4><table border="1" cellspacing="1" cellpadding="1">
<tbody>
<tr>
<th></th>
<th>IP总数</th>
<th>子网掩码</th>
<th>Amount of a Class C</th>
</tr>
<tr align="center">
<th>/30</th>
<td>4</td>
<td>255.255.255.252</td>
<td>1/64</td>
</tr>
<tr align="center">
<th>/29</th>
<td>8</td>
<td>255.255.255.248</td>
<td>1/32</td>
</tr>
<tr align="center">
<th>/28</th>
<td>16</td>
<td>255.255.255.240</td>
<td>1/16</td>
</tr>
<tr align="center">
<th>/27</th>
<td>32</td>
<td>255.255.255.224</td>
<td>1/8</td>
</tr>
<tr align="center">
<th>/26</th>
<td>64</td>
<td>255.255.255.192</td>
<td>1/4</td>
</tr>
<tr align="center">
<th>/24</th>
<td>256</td>
<td>255.255.255.0</td>
<td>1</td>
</tr>
<tr align="center">
<th>/23</th>
<td>512</td>
<td>255.255.254.0</td>
<td>2</td>
</tr>
<tr align="center">
<th>/22</th>
<td>1024</td>
<td>255.255.252.0</td>
<td>4</td>
</tr>
<tr align="center">
<th>/21</th>
<td>2048</td>
<td>255.255.248.0</td>
<td>8</td>
</tr>
<tr align="center">
<th>/20</th>
<td>4096</td>
<td>255.255.240.0</td>
<td>16</td>
</tr>
<tr align="center">
<th>/19</th>
<td>8192</td>
<td>255.255.224.0</td>
<td>32</td>
</tr>
<tr align="center">
<th>/18</th>
<td>16384</td>
<td>255.255.192.0</td>
<td>64</td>
</tr>
<tr align="center">
<th>/17</th>
<td>32768</td>
<td>255.255.128.0</td>
<td>128</td>
</tr>
<tr align="center">
<th>/16</th>
<td>65536</td>
<td>255.255.0.0</td>
<td>256</td>
</tr>
</tbody>
</table>
<h4>ip段/27 /29 /30 网关,子网掩码，广播地址查询</h4>
<p><strong>范例：</strong> 要查询204.45.116.184 /29 ，先找到下表的 /29 表格，网关 这一列找到要查询的IP最后一位即.184 ，然后就可以看到可用IP范围（注:第一个IP是Gateway网关地址 ）和广播地址了。然后从上面 的表找到 子网掩码即可。</p>
<table border="0">
<tbody>
<tr>
<td><strong>/25</strong> <strong>— 2 Subnets — 126 Hosts/Subnet</strong><p></p>
<table border="1">
<tbody>
<tr>
<th>网络地址<br>
Network #</th>
<th>可用IP<br>
范围</th>
<th>广播地址<br>
Broadcast</th>
</tr>
<tr>
<td>.0</td>
<td>.1-.126</td>
<td>.127</td>
</tr>
<tr>
<td>.128</td>
<td>.129-.254</td>
<td>.255</td>
</tr>
</tbody>
</table>
</td>
<td rowspan="5"><strong>/30</strong> <strong>— 64 Subnets — 2 Hosts/Subnet</strong><p></p>
<table border="1" cellspacing="1" cellpadding="1">
<tbody>
<tr>
<th>网络地址<br>
Network #</th>
<th>可用IP<br>
范围</th>
<th>广播地址<br>
Broadcast</th>
</tr>
<tr>
<td>.0</td>
<td>.1-.2</td>
<td>.3</td>
</tr>
<tr>
<td>.4</td>
<td>.5-.6</td>
<td>.7</td>
</tr>
<tr>
<td>.8</td>
<td>.9-.10</td>
<td>.11</td>
</tr>
<tr>
<td>.12</td>
<td>.13-.14</td>
<td>.15</td>
</tr>
<tr>
<td>.16</td>
<td>.17-.18</td>
<td>.19</td>
</tr>
<tr>
<td>.20</td>
<td>.21-.22</td>
<td>.23</td>
</tr>
<tr>
<td>.24</td>
<td>.25-.26</td>
<td>.27</td>
</tr>
<tr>
<td>.28</td>
<td>.29-.30</td>
<td>.31</td>
</tr>
<tr>
<td>.32</td>
<td>.33-.34</td>
<td>.35</td>
</tr>
<tr>
<td>.36</td>
<td>.37-.38</td>
<td>.39</td>
</tr>
<tr>
<td>.40</td>
<td>.41-.42</td>
<td>.43</td>
</tr>
<tr>
<td>.44</td>
<td>.45-.46</td>
<td>.47</td>
</tr>
<tr>
<td>.48</td>
<td>.49-.50</td>
<td>.51</td>
</tr>
<tr>
<td>.52</td>
<td>.53-.54</td>
<td>.55</td>
</tr>
<tr>
<td>.56</td>
<td>.57-.58</td>
<td>.59</td>
</tr>
<tr>
<td>.60</td>
<td>.61-.62</td>
<td>.63</td>
</tr>
<tr>
<td>.64</td>
<td>.65-.66</td>
<td>.67</td>
</tr>
<tr>
<td>.68</td>
<td>.69-.70</td>
<td>.71</td>
</tr>
<tr>
<td>.72</td>
<td>.73-.74</td>
<td>.75</td>
</tr>
<tr>
<td>.76</td>
<td>.77-.78</td>
<td>.79</td>
</tr>
<tr>
<td>.80</td>
<td>.81-.82</td>
<td>.83</td>
</tr>
<tr>
<td>.84</td>
<td>.85-.86</td>
<td>.87</td>
</tr>
<tr>
<td>.88</td>
<td>.89-.90</td>
<td>.91</td>
</tr>
<tr>
<td>.92</td>
<td>.93-.94</td>
<td>.95</td>
</tr>
<tr>
<td>.96</td>
<td>.97-.98</td>
<td>.99</td>
</tr>
<tr>
<td>.100</td>
<td>.101-.102</td>
<td>.103</td>
</tr>
<tr>
<td>.104</td>
<td>.105-.106</td>
<td>.107</td>
</tr>
<tr>
<td>.108</td>
<td>.109-.110</td>
<td>.111</td>
</tr>
<tr>
<td>.112</td>
<td>.113-.114</td>
<td>.115</td>
</tr>
<tr>
<td>.116</td>
<td>.117-.118</td>
<td>.119</td>
</tr>
<tr>
<td>.120</td>
<td>.121-.122</td>
<td>.123</td>
</tr>
<tr>
<td>.124</td>
<td>.125-.126</td>
<td>.127</td>
</tr>
<tr>
<td>.128</td>
<td>.129-.130</td>
<td>.131</td>
</tr>
<tr>
<td>.132</td>
<td>.133-.134</td>
<td>.135</td>
</tr>
<tr>
<td>.136</td>
<td>.137-.138</td>
<td>.139</td>
</tr>
<tr>
<td>.140</td>
<td>.141-.142</td>
<td>.143</td>
</tr>
<tr>
<td>.144</td>
<td>.145-.146</td>
<td>.147</td>
</tr>
<tr>
<td>.148</td>
<td>.149-.150</td>
<td>.151</td>
</tr>
<tr>
<td>.152</td>
<td>.153-.154</td>
<td>.155</td>
</tr>
<tr>
<td>.156</td>
<td>.157-.158</td>
<td>.159</td>
</tr>
<tr>
<td>.160</td>
<td>.161-.162</td>
<td>.163</td>
</tr>
<tr>
<td>.164</td>
<td>.165-.166</td>
<td>.167</td>
</tr>
<tr>
<td>.168</td>
<td>.169-.170</td>
<td>.171</td>
</tr>
<tr>
<td>.172</td>
<td>.173-.174</td>
<td>.175</td>
</tr>
<tr>
<td>.176</td>
<td>.177-.178</td>
<td>.179</td>
</tr>
<tr>
<td>.180</td>
<td>.181-.182</td>
<td>.183</td>
</tr>
<tr>
<td>.184</td>
<td>.185-.186</td>
<td>.187</td>
</tr>
<tr>
<td>.188</td>
<td>.189-.190</td>
<td>.191</td>
</tr>
<tr>
<td>.192</td>
<td>.193-.194</td>
<td>.195</td>
</tr>
<tr>
<td>.196</td>
<td>.197-.198</td>
<td>.199</td>
</tr>
<tr>
<td>.200</td>
<td>.201-.202</td>
<td>.203</td>
</tr>
<tr>
<td>.204</td>
<td>.205-.206</td>
<td>.207</td>
</tr>
<tr>
<td>.208</td>
<td>.209-.210</td>
<td>.211</td>
</tr>
<tr>
<td>.212</td>
<td>.213-.214</td>
<td>.215</td>
</tr>
<tr>
<td>.216</td>
<td>.217-.218</td>
<td>.219</td>
</tr>
<tr>
<td>.220</td>
<td>.221-.222</td>
<td>.223</td>
</tr>
<tr>
<td>.224</td>
<td>.225-.226</td>
<td>.227</td>
</tr>
<tr>
<td>.228</td>
<td>.229-.230</td>
<td>.231</td>
</tr>
<tr>
<td>.232</td>
<td>.233-.234</td>
<td>.235</td>
</tr>
<tr>
<td>.236</td>
<td>.237-.238</td>
<td>.239</td>
</tr>
<tr>
<td>.240</td>
<td>.241-.242</td>
<td>.243</td>
</tr>
<tr>
<td>.244</td>
<td>.245-.246</td>
<td>.247</td>
</tr>
<tr>
<td>.248</td>
<td>.249-.250</td>
<td>.251</td>
</tr>
<tr>
<td>.252</td>
<td>.253-.254</td>
<td>.255</td>
</tr>
</tbody>
</table>
</td>
</tr>
<tr>
<td><strong>/26</strong> <strong>— 4 Subnets — 62 Hosts/Subnet</strong><p></p>
<table border="1" cellspacing="1" cellpadding="1">
<tbody>
<tr>
<th>网络地址<br>
Network #</th>
<th>可用IP<br>
范围</th>
<th>广播地址<br>
Broadcast</th>
</tr>
<tr>
<td>.0</td>
<td>.1-.62</td>
<td>.63</td>
</tr>
<tr>
<td>.64</td>
<td>.65-.126</td>
<td>.127</td>
</tr>
<tr>
<td>.128</td>
<td>.129-.190</td>
<td>.191</td>
</tr>
<tr>
<td>.192</td>
<td>.193-.254</td>
<td>.255</td>
</tr>
</tbody>
</table>
</td>
</tr>
<tr>
<td><strong>/27</strong> <strong>— 8 Subnets — 30 Hosts/Subnet</strong><p></p>
<table border="1" cellspacing="1" cellpadding="1">
<tbody>
<tr>
<th>网络地址<br>
Network #</th>
<th>可用IP<br>
范围</th>
<th>广播地址<br>
Broadcast</th>
</tr>
<tr>
<td>.0</td>
<td>.1-.30</td>
<td>.31</td>
</tr>
<tr>
<td>.32</td>
<td>.33-.62</td>
<td>.63</td>
</tr>
<tr>
<td>.64</td>
<td>.65-.94</td>
<td>.95</td>
</tr>
<tr>
<td>.96</td>
<td>.97-.126</td>
<td>.127</td>
</tr>
<tr>
<td>.128</td>
<td>.129-.158</td>
<td>.159</td>
</tr>
<tr>
<td>.160</td>
<td>.161-.190</td>
<td>.191</td>
</tr>
<tr>
<td>.192</td>
<td>.193-.222</td>
<td>.223</td>
</tr>
<tr>
<td>.224</td>
<td>.225-.254</td>
<td>.255</td>
</tr>
</tbody>
</table>
</td>
</tr>
<tr>
<td><strong>/28</strong> <strong>— 16 Subnets — 14 Hosts/Subnet</strong><p></p>
<table border="1" cellspacing="1" cellpadding="1">
<tbody>
<tr>
<th>网络地址<br>
Network #</th>
<th>可用IP<br>
范围</th>
<th>广播地址<br>
Broadcast</th>
</tr>
<tr>
<td>.0</td>
<td>.1-.14</td>
<td>.15</td>
</tr>
<tr>
<td>.16</td>
<td>.17-.30</td>
<td>.31</td>
</tr>
<tr>
<td>.32</td>
<td>.33-.46</td>
<td>.47</td>
</tr>
<tr>
<td>.48</td>
<td>.49-.62</td>
<td>.63</td>
</tr>
<tr>
<td>.64</td>
<td>.65-.78</td>
<td>.79</td>
</tr>
<tr>
<td>.80</td>
<td>.81-.94</td>
<td>.95</td>
</tr>
<tr>
<td>.96</td>
<td>.97-.110</td>
<td>.111</td>
</tr>
<tr>
<td>.112</td>
<td>.113-.126</td>
<td>.127</td>
</tr>
<tr>
<td>.128</td>
<td>.129-.142</td>
<td>.143</td>
</tr>
<tr>
<td>.144</td>
<td>.145-.158</td>
<td>.159</td>
</tr>
<tr>
<td>.160</td>
<td>.161-.174</td>
<td>.175</td>
</tr>
<tr>
<td>.176</td>
<td>.177-.190</td>
<td>.191</td>
</tr>
<tr>
<td>.192</td>
<td>.193-.206</td>
<td>.207</td>
</tr>
<tr>
<td>.208</td>
<td>.209-.222</td>
<td>.223</td>
</tr>
<tr>
<td>.224</td>
<td>.225-.238</td>
<td>.239</td>
</tr>
<tr>
<td>.240</td>
<td>.241-.254</td>
<td>.255</td>
</tr>
</tbody>
</table>
</td>
</tr>
<tr>
<td><strong>/29</strong> <strong>— 32 Subnets — 6 Hosts/Subnet</strong><p></p>
<table border="1" cellspacing="1" cellpadding="1">
<tbody>
<tr>
<th>网络地址<br>
Network #</th>
<th>可用IP<br>
范围</th>
<th>广播地址<br>
Broadcast</th>
</tr>
<tr>
<td>.0</td>
<td>.1-.6</td>
<td>.7</td>
</tr>
<tr>
<td>.8</td>
<td>.9-.14</td>
<td>.15</td>
</tr>
<tr>
<td>.16</td>
<td>.17-.22</td>
<td>.23</td>
</tr>
<tr>
<td>.24</td>
<td>.25-.30</td>
<td>.31</td>
</tr>
<tr>
<td>.32</td>
<td>.33-.38</td>
<td>.39</td>
</tr>
<tr>
<td>.40</td>
<td>.41-.46</td>
<td>.47</td>
</tr>
<tr>
<td>.48</td>
<td>.49-.54</td>
<td>.55</td>
</tr>
<tr>
<td>.56</td>
<td>.57-.62</td>
<td>.63</td>
</tr>
<tr>
<td>.64</td>
<td>.65-.70</td>
<td>.71</td>
</tr>
<tr>
<td>.72</td>
<td>.73-.78</td>
<td>.79</td>
</tr>
<tr>
<td>.80</td>
<td>.81-.86</td>
<td>.87</td>
</tr>
<tr>
<td>.88</td>
<td>.89-.94</td>
<td>.95</td>
</tr>
<tr>
<td>.96</td>
<td>.97-.102</td>
<td>.103</td>
</tr>
<tr>
<td>.104</td>
<td>.105-.110</td>
<td>.111</td>
</tr>
<tr>
<td>.112</td>
<td>.113-.118</td>
<td>.119</td>
</tr>
<tr>
<td>.120</td>
<td>.121-.126</td>
<td>.127</td>
</tr>
<tr>
<td>.128</td>
<td>.129-.134</td>
<td>.135</td>
</tr>
<tr>
<td>.136</td>
<td>.137-.142</td>
<td>.143</td>
</tr>
<tr>
<td>.144</td>
<td>.145-.150</td>
<td>.151</td>
</tr>
<tr>
<td>.152</td>
<td>.153-.158</td>
<td>.159</td>
</tr>
<tr>
<td>.160</td>
<td>.161-.166</td>
<td>.167</td>
</tr>
<tr>
<td>.168</td>
<td>.169-.174</td>
<td>.175</td>
</tr>
<tr>
<td>.176</td>
<td>.177-.182</td>
<td>.183</td>
</tr>
<tr>
<td>.184</td>
<td>.185-.190</td>
<td>.191</td>
</tr>
<tr>
<td>.192</td>
<td>.193-.198</td>
<td>.199</td>
</tr>
<tr>
<td>.200</td>
<td>.201-.206</td>
<td>.207</td>
</tr>
<tr>
<td>.208</td>
<td>.209-.214</td>
<td>.215</td>
</tr>
<tr>
<td>.216</td>
<td>.217-.222</td>
<td>.223</td>
</tr>
<tr>
<td>.224</td>
<td>.225-.230</td>
<td>.231</td>
</tr>
<tr>
<td>.232</td>
<td>.233-.238</td>
<td>.239</td>
</tr>
<tr>
<td>.240</td>
<td>.241-.246</td>
<td>.247</td>
</tr>
<tr>
<td>.248</td>
<td>.249-.254</td>
<td>.255</td>
</tr>
</tbody>
</table>
</td>
</tr>
</tbody>
</table>
<p class="post-copyright">未经允许不得转载：<ahref="https://www.wangchao.info/">王超博客</a> » <ahref="https://www.wangchao.info/930.html">可用IP查询，ip段/27/29/30网关,子网掩码，广播地址查询</a></p>
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