# ip段/27 /29 /30 是什么意思？哪些IP可用？ 网关,子网掩码,广播地址是什么？ > 来源：梦飞idc云平台 | 原文：https://www.mfisp.com/2604.html | 发布：2021-12-08 | 更新：2022-03-24 | 分类：IDC云库 **ip****段/27 /29 /30 是什么意思？哪些IP可用？ 网关,子网掩码,广播地址是什么？** 我们租用服务器的时候，需要多个IP地址，机房总是发一个类似 10.0.0.1/29 或 10.0.0.1/28 或 10.0.0.1/30 或 10.0.0.1/27 的地址给我们，对于不熟悉网络的人来说，真的莫名其妙。到底有哪些可用的IP？ 网关,子网掩码，广播地址是什么？ 为了方便大家，本文章提供了 可用IP查询，ip段/27 /29 /30 网关,子网掩码，广播地址查询 **可用IP查询,IP段对应表** | | **IP****总数** | **子网掩码** | **C****段个数** | |---|---|---|---| | **/30** | 4 | 255.255.255.252 | 1/64 | | **/29** | 8 | 255.255.255.248 | 1/32 | | **/28** | 16 | 255.255.255.240 | 1/16 | | **/27** | 32 | 255.255.255.224 | 1/8 | | **/26** | 64 | 255.255.255.192 | 1/4 | | **/24** | 256 | 255.255.255.0 | 1 | | **/23** | 512 | 255.255.254.0 | 2 | | **/22** | 1024 | 255.255.252.0 | 4 | | **/21** | 2048 | 255.255.248.0 | 8 | | **/20** | 4096 | 255.255.240.0 | 16 | | **/19** | 8192 | 255.255.224.0 | 32 | | **/18** | 16384 | 255.255.192.0 | 64 | | **/17** | 32768 | 255.255.128.0 | 128 | | **/16** | 65536 | 255.255.0.0 | 256 | **ip****段/24 /25 /26 /27 /28 /29 /30****网关****,****子网掩码，广播地址查询** **范例：** 要查询192.168.1.100/29，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.100，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。 | **/25****-- 2 Subnets -- 126 Hosts/Subnet** \| **网络地址** \| **可用IP范围** \| **广播地址** \| \|---\|---\|---\| \| .0 \| .1-.126 \| .127 \| \| .128 \| .129-.254 \| .255 \| | **/24 --1 Subnets -- 254 Hosts/Subnet****代表一整个C段** \| **网络地址** \| **可用IP范围** \| **广播地址** \| \|---\|---\|---\| \| **.0** \| **.1-.254** \| **.255** \| **/30****-- 64 Subnets -- 2 Hosts/Subnet** \| **网络地址** \| **可用IP范围** \| **广播地址** \| \|---\|---\|---\| \| .0 \| .1-.2 \| .3 \| \| .4 \| .5-.6 \| .7 \| \| .8 \| .9-.10 \| .11 \| \| .12 \| .13-.14 \| .15 \| \| .16 \| .17-.18 \| .19 \| \| .20 \| .21-.22 \| .23 \| \| .24 \| .25-.26 \| .27 \| \| .28 \| .29-.30 \| .31 \| \| .32 \| .33-.34 \| .35 \| \| .36 \| .37-.38 \| .39 \| \| .40 \| .41-.42 \| .43 \| \| .44 \| .45-.46 \| .47 \| \| .48 \| .49-.50 \| .51 \| \| .52 \| .53-.54 \| .55 \| \| .56 \| .57-.58 \| .59 \| \| .60 \| .61-.62 \| .63 \| \| .64 \| .65-.66 \| .67 \| \| .68 \| .69-.70 \| .71 \| \| .72 \| .73-.74 \| .75 \| \| .76 \| .77-.78 \| .79 \| \| .80 \| .81-.82 \| .83 \| \| .84 \| .85-.86 \| .87 \| \| .88 \| .89-.90 \| .91 \| \| .92 \| .93-.94 \| .95 \| \| .96 \| .97-.98 \| .99 \| \| .100 \| .101-.102 \| .103 \| \| .104 \| .105-.106 \| .107 \| \| .108 \| .109-.110 \| .111 \| \| .112 \| .113-.114 \| .115 \| \| .116 \| .117-.118 \| .119 \| \| .120 \| .121-.122 \| .123 \| \| .124 \| .125-.126 \| .127 \| \| .128 \| .129-.130 \| .131 \| \| .132 \| .133-.134 \| .135 \| \| .136 \| .137-.138 \| .139 \| \| .140 \| .141-.142 \| .143 \| \| .144 \| .145-.146 \| .147 \| \| .148 \| .149-.150 \| .151 \| \| .152 \| .153-.154 \| .155 \| \| .156 \| .157-.158 \| .159 \| \| .160 \| .161-.162 \| .163 \| \| .164 \| .165-.166 \| .167 \| \| .168 \| .169-.170 \| .171 \| \| .172 \| .173-.174 \| .175 \| \| .176 \| .177-.178 \| .179 \| \| .180 \| .181-.182 \| .183 \| \| .184 \| .185-.186 \| .187 \| \| .188 \| .189-.190 \| .191 \| \| .192 \| .193-.194 \| .195 \| \| .196 \| .197-.198 \| .199 \| \| .200 \| .201-.202 \| .203 \| \| .204 \| .205-.206 \| .207 \| \| .208 \| .209-.210 \| .211 \| \| .212 \| .213-.214 \| .215 \| \| .216 \| .217-.218 \| .219 \| \| .220 \| .221-.222 \| .223 \| \| .224 \| .225-.226 \| .227 \| \| .228 \| .229-.230 \| .231 \| \| .232 \| .233-.234 \| .235 \| \| .236 \| .237-.238 \| .239 \| \| .240 \| .241-.242 \| .243 \| \| .244 \| .245-.246 \| .247 \| \| .248 \| .249-.250 \| .251 \| \| .252 \| .253-.254 \| .255 \| | | |---|---|---| | **网络地址** | **可用IP范围** | **广播地址** | | .0 | .1-.126 | .127 | | .128 | .129-.254 | .255 | | **网络地址** | **可用IP范围** | **广播地址** | | **.0** | **.1-.254** | **.255** | | **网络地址** | **可用IP范围** | **广播地址** | | .0 | .1-.2 | .3 | | .4 | .5-.6 | .7 | | .8 | .9-.10 | .11 | | .12 | .13-.14 | .15 | | .16 | .17-.18 | .19 | | .20 | .21-.22 | .23 | | .24 | .25-.26 | .27 | | .28 | .29-.30 | .31 | | .32 | .33-.34 | .35 | | .36 | .37-.38 | .39 | | .40 | .41-.42 | .43 | | .44 | .45-.46 | .47 | | .48 | .49-.50 | .51 | | .52 | .53-.54 | .55 | | .56 | .57-.58 | .59 | | .60 | .61-.62 | .63 | | .64 | .65-.66 | .67 | | .68 | .69-.70 | .71 | | .72 | .73-.74 | .75 | | .76 | .77-.78 | .79 | | .80 | .81-.82 | .83 | | .84 | .85-.86 | .87 | | .88 | .89-.90 | .91 | | .92 | .93-.94 | .95 | | .96 | .97-.98 | .99 | | .100 | .101-.102 | .103 | | .104 | .105-.106 | .107 | | .108 | .109-.110 | .111 | | .112 | .113-.114 | .115 | | .116 | .117-.118 | .119 | | .120 | .121-.122 | .123 | | .124 | .125-.126 | .127 | | .128 | .129-.130 | .131 | | .132 | .133-.134 | .135 | | .136 | .137-.138 | .139 | | .140 | .141-.142 | .143 | | .144 | .145-.146 | .147 | | .148 | .149-.150 | .151 | | .152 | .153-.154 | .155 | | .156 | .157-.158 | .159 | | .160 | .161-.162 | .163 | | .164 | .165-.166 | .167 | | .168 | .169-.170 | .171 | | .172 | .173-.174 | .175 | | .176 | .177-.178 | .179 | | .180 | .181-.182 | .183 | | .184 | .185-.186 | .187 | | .188 | .189-.190 | .191 | | .192 | .193-.194 | .195 | | .196 | .197-.198 | .199 | | .200 | .201-.202 | .203 | | .204 | .205-.206 | .207 | | .208 | .209-.210 | .211 | | .212 | .213-.214 | .215 | | .216 | .217-.218 | .219 | | .220 | .221-.222 | .223 | | .224 | .225-.226 | .227 | | .228 | .229-.230 | .231 | | .232 | .233-.234 | .235 | | .236 | .237-.238 | .239 | | .240 | .241-.242 | .243 | | .244 | .245-.246 | .247 | | .248 | .249-.250 | .251 | | .252 | .253-.254 | .255 | | **/26****-- 4 Subnets -- 62 Hosts/Subnet** \| **网络地址** \| **可用IP范围** \| **广播地址** \| \|---\|---\|---\| \| .0 \| .1-.62 \| .63 \| \| .64 \| .65-.126 \| .127 \| \| .128 \| .129-.190 \| .191 \| \| .192 \| .193-.254 \| .255 \| | | | | **网络地址** | **可用IP范围** | **广播地址** | | .0 | .1-.62 | .63 | | .64 | .65-.126 | .127 | | .128 | .129-.190 | .191 | | .192 | .193-.254 | .255 | | **/27****-- 8 Subnets -- 30 Hosts/Subnet** \| **网络地址** \| **可用IP范围** \| **广播地址** \| \|---\|---\|---\| \| .0 \| .1-.30 \| .31 \| \| .32 \| .33-.62 \| .63 \| \| .64 \| .65-.94 \| .95 \| \| .96 \| .97-.126 \| .127 \| \| .128 \| .129-.158 \| .159 \| \| .160 \| .161-.190 \| .191 \| \| .192 \| .193-.222 \| .223 \| \| .224 \| .225-.254 \| .255 \| | | | | **网络地址** | **可用IP范围** | **广播地址** | | .0 | .1-.30 | .31 | | .32 | .33-.62 | .63 | | .64 | .65-.94 | .95 | | .96 | .97-.126 | .127 | | .128 | .129-.158 | .159 | | .160 | .161-.190 | .191 | | .192 | .193-.222 | .223 | | .224 | .225-.254 | .255 | | **/28****-- 16 Subnets -- 14 Hosts/Subnet** \| **网络地址** \| **可用IP范围** \| **广播地址** \| \|---\|---\|---\| \| .0 \| .1-.14 \| .15 \| \| .16 \| .17-.30 \| .31 \| \| .32 \| .33-.46 \| .47 \| \| .48 \| .49-.62 \| .63 \| \| .64 \| .65-.78 \| .79 \| \| .80 \| .81-.94 \| .95 \| \| .96 \| .97-.110 \| .111 \| \| .112 \| .113-.126 \| .127 \| \| .128 \| .129-.142 \| .143 \| \| .144 \| .145-.158 \| .159 \| \| .160 \| .161-.174 \| .175 \| \| .176 \| .177-.190 \| .191 \| \| .192 \| .193-.206 \| .207 \| \| .208 \| .209-.222 \| .223 \| \| .224 \| .225-.238 \| .239 \| \| .240 \| .241-.254 \| .255 \| | | | | **网络地址** | **可用IP范围** | **广播地址** | | .0 | .1-.14 | .15 | | .16 | .17-.30 | .31 | | .32 | .33-.46 | .47 | | .48 | .49-.62 | .63 | | .64 | .65-.78 | .79 | | .80 | .81-.94 | .95 | | .96 | .97-.110 | .111 | | .112 | .113-.126 | .127 | | .128 | .129-.142 | .143 | | .144 | .145-.158 | .159 | | .160 | .161-.174 | .175 | | .176 | .177-.190 | .191 | | .192 | .193-.206 | .207 | | .208 | .209-.222 | .223 | | .224 | .225-.238 | .239 | | .240 | .241-.254 | .255 | | **/29****-- 32 Subnets -- 6 Hosts/Subnet** \| **网络地址** \| **可用IP范围** \| **广播地址** \| \|---\|---\|---\| \| .0 \| .1-.6 \| .7 \| \| .8 \| .9-.14 \| .15 \| \| .16 \| .17-.22 \| .23 \| \| .24 \| .25-.30 \| .31 \| \| .32 \| .33-.38 \| .39 \| \| .40 \| .41-.46 \| .47 \| \| .48 \| .49-.54 \| .55 \| \| .56 \| .57-.62 \| .63 \| \| .64 \| .65-.70 \| .71 \| \| .72 \| .73-.78 \| .79 \| \| .80 \| .81-.86 \| .87 \| \| .88 \| .89-.94 \| .95 \| \| .96 \| .97-.102 \| .103 \| \| .104 \| .105-.110 \| .111 \| \| .112 \| .113-.118 \| .119 \| \| .120 \| .121-.126 \| .127 \| \| .128 \| .129-.134 \| .135 \| \| .136 \| .137-.142 \| .143 \| \| .144 \| .145-.150 \| .151 \| \| .152 \| .153-.158 \| .159 \| \| .160 \| .161-.166 \| .167 \| \| .168 \| .169-.174 \| .175 \| \| .176 \| .177-.182 \| .183 \| \| .184 \| .185-.190 \| .191 \| \| .192 \| .193-.198 \| .199 \| \| .200 \| .201-.206 \| .207 \| \| .208 \| .209-.214 \| .215 \| \| .216 \| .217-.222 \| .223 \| \| .224 \| .225-.230 \| .231 \| \| .232 \| .233-.238 \| .239 \| \| .240 \| .241-.246 \| .247 \| \| .248 \| .249-.254 \| .255 \| | | | | **网络地址** | **可用IP范围** | **广播地址** | | .0 | .1-.6 | .7 | | .8 | .9-.14 | .15 | | .16 | .17-.22 | .23 | | .24 | .25-.30 | .31 | | .32 | .33-.38 | .39 | | .40 | .41-.46 | .47 | | .48 | .49-.54 | .55 | | .56 | .57-.62 | .63 | | .64 | .65-.70 | .71 | | .72 | .73-.78 | .79 | | .80 | .81-.86 | .87 | | .88 | .89-.94 | .95 | | .96 | .97-.102 | .103 | | .104 | .105-.110 | .111 | | .112 | .113-.118 | .119 | | .120 | .121-.126 | .127 | | .128 | .129-.134 | .135 | | .136 | .137-.142 | .143 | | .144 | .145-.150 | .151 | | .152 | .153-.158 | .159 | | .160 | .161-.166 | .167 | | .168 | .169-.174 | .175 | | .176 | .177-.182 | .183 | | .184 | .185-.190 | .191 | | .192 | .193-.198 | .199 | | .200 | .201-.206 | .207 | | .208 | .209-.214 | .215 | | .216 | .217-.222 | .223 | | .224 | .225-.230 | .231 | | .232 | .233-.238 | .239 | | .240 | .241-.246 | .247 | | .248 | .249-.254 | .255 | --- 本页由 梦飞idc云平台（https://www.mfisp.com）提供。站点导航见 https://www.mfisp.com/llms.txt