https://www.deepreflect.net/tags/binary/ Recent content in Binary on Details... Hugo en-US Copyright © 2003 - 2026 Leonardo Rizzi Tue, 30 Jun 2026 03:28:29 +0200 https://www.deepreflect.net/2010/05/09/netmask-conversion/ Sun, 09 May 2010 10:50:59 +0000 http://blog.deepreflect.net/?p=926 <table> <thead> <tr> <th>Bitmask (Bits)</th> <th>Dotted Decimal</th> <th>Hexadecimal</th> <th>Binary</th> </tr> </thead> <tbody> <tr> <td>/0</td> <td>0.0.0.0</td> <td>0x00000000</td> <td>00000000 00000000 00000000 00000000</td> </tr> <tr> <td>/1</td> <td>128.0.0.0</td> <td>0x80000000</td> <td>10000000 00000000 00000000 00000000</td> </tr> <tr> <td>/2</td> <td>192.0.0.0</td> <td>0xc0000000</td> <td>11000000 00000000 00000000 00000000</td> </tr> <tr> <td>/3</td> <td>224.0.0.0</td> <td>0xe0000000</td> <td>11100000 00000000 00000000 00000000</td> </tr> <tr> <td>/4</td> <td>240.0.0.0</td> <td>0xf0000000</td> <td>11110000 00000000 00000000 00000000</td> </tr> <tr> <td>/5</td> <td>248.0.0.0</td> <td>0xf8000000</td> <td>11111000 00000000 00000000 00000000</td> </tr> <tr> <td>/6</td> <td>252.0.0.0</td> <td>0xfc000000</td> <td>11111100 00000000 00000000 00000000</td> </tr> <tr> <td>/7</td> <td>254.0.0.0</td> <td>0xfe000000</td> <td>11111110 00000000 00000000 00000000</td> </tr> <tr> <td>/8</td> <td>255.0.0.0</td> <td>0xff000000</td> <td>11111111 00000000 00000000 00000000</td> </tr> <tr> <td>/9</td> <td>255.128.0.0</td> <td>0xff800000</td> <td>11111111 10000000 00000000 00000000</td> </tr> <tr> <td>/10</td> <td>255.192.0.0</td> <td>0xffc00000</td> <td>11111111 11000000 00000000 00000000</td> </tr> <tr> <td>/11</td> <td>255.224.0.0</td> <td>0xffe00000</td> <td>11111111 11100000 00000000 00000000</td> </tr> <tr> <td>/12</td> <td>255.240.0.0</td> <td>0xfff00000</td> <td>11111111 11110000 00000000 00000000</td> </tr> <tr> <td>/13</td> <td>255.248.0.0</td> <td>0xfff80000</td> <td>11111111 11111000 00000000 00000000</td> </tr> <tr> <td>/14</td> <td>255.252.0.0</td> <td>0xfffc0000</td> <td>11111111 11111100 00000000 00000000</td> </tr> <tr> <td>/15</td> <td>255.254.0.0</td> <td>0xfffe0000</td> <td>11111111 11111110 00000000 00000000</td> </tr> <tr> <td>/16</td> <td>255.255.0.0</td> <td>0xffff0000</td> <td>11111111 11111111 00000000 00000000</td> </tr> <tr> <td>/17</td> <td>255.255.128.0</td> <td>0xffff8000</td> <td>11111111 11111111 10000000 00000000</td> </tr> <tr> <td>/18</td> <td>255.255.192.0</td> <td>0xffffc000</td> <td>11111111 11111111 11000000 00000000</td> </tr> <tr> <td>/19</td> <td>255.255.224.0</td> <td>0xffffe000</td> <td>11111111 11111111 11100000 00000000</td> </tr> <tr> <td>/20</td> <td>255.255.240.0</td> <td>0xfffff000</td> <td>11111111 11111111 11110000 00000000</td> </tr> <tr> <td>/21</td> <td>255.255.248.0</td> <td>0xfffff800</td> <td>11111111 11111111 11111000 00000000</td> </tr> <tr> <td>/22</td> <td>255.255.252.0</td> <td>0xfffffc00</td> <td>11111111 11111111 11111100 00000000</td> </tr> <tr> <td>/23</td> <td>255.255.254.0</td> <td>0xfffffe00</td> <td>11111111 11111111 11111110 00000000</td> </tr> <tr> <td>/24</td> <td>255.255.255.0</td> <td>0xffffff00</td> <td>11111111 11111111 11111111 00000000</td> </tr> <tr> <td>/25</td> <td>255.255.255.128</td> <td>0xffffff80</td> <td>11111111 11111111 11111111 10000000</td> </tr> <tr> <td>/26</td> <td>255.255.255.192</td> <td>0xffffffc0</td> <td>11111111 11111111 11111111 11000000</td> </tr> <tr> <td>/27</td> <td>255.255.255.224</td> <td>0xffffffe0</td> <td>11111111 11111111 11111111 11100000</td> </tr> <tr> <td>/28</td> <td>255.255.255.240</td> <td>0xfffffff0</td> <td>11111111 11111111 11111111 11110000</td> </tr> <tr> <td>/29</td> <td>255.255.255.248</td> <td>0xfffffff8</td> <td>11111111 11111111 11111111 11111000</td> </tr> <tr> <td>/30</td> <td>255.255.255.252</td> <td>0xfffffffc</td> <td>11111111 11111111 11111111 11111100</td> </tr> <tr> <td>/31</td> <td>255.255.255.254</td> <td>0xfffffffe</td> <td>11111111 11111111 11111111 11111110</td> </tr> <tr> <td>/32</td> <td>255.255.255.255</td> <td>0xffffffff</td> <td>11111111 11111111 11111111 11111111</td> </tr> </tbody> </table> Bitmask (Bits) Dotted Decimal Hexadecimal Binary /0 0.0.0.0 0x00000000 00000000 00000000 00000000 00000000 /1 128.0.0.0 0x80000000 10000000 00000000 00000000 00000000 /2 192.0.0.0 0xc0000000 11000000 00000000 00000000 00000000 /3 224.0.0.0 0xe0000000 11100000 00000000 00000000 00000000 /4 240.0.0.0 0xf0000000 11110000 00000000 00000000 00000000 /5 248.0.0.0 0xf8000000 11111000 00000000 00000000 00000000 /6 252.0.0.0 0xfc000000 11111100 00000000 00000000 00000000 /7 254.0.0.0 0xfe000000 11111110 00000000 00000000 00000000 /8 255.0.0.0 0xff000000 11111111 00000000 00000000 00000000 /9 255.128.0.0 0xff800000 11111111 10000000 00000000 00000000 /10 255.192.0.0 0xffc00000 11111111 11000000 00000000 00000000 /11 255.224.0.0 0xffe00000 11111111 11100000 00000000 00000000 /12 255.240.0.0 0xfff00000 11111111 11110000 00000000 00000000 /13 255.248.0.0 0xfff80000 11111111 11111000 00000000 00000000 /14 255.252.0.0 0xfffc0000 11111111 11111100 00000000 00000000 /15 255.254.0.0 0xfffe0000 11111111 11111110 00000000 00000000 /16 255.255.0.0 0xffff0000 11111111 11111111 00000000 00000000 /17 255.255.128.0 0xffff8000 11111111 11111111 10000000 00000000 /18 255.255.192.0 0xffffc000 11111111 11111111 11000000 00000000 /19 255.255.224.0 0xffffe000 11111111 11111111 11100000 00000000 /20 255.255.240.0 0xfffff000 11111111 11111111 11110000 00000000 /21 255.255.248.0 0xfffff800 11111111 11111111 11111000 00000000 /22 255.255.252.0 0xfffffc00 11111111 11111111 11111100 00000000 /23 255.255.254.0 0xfffffe00 11111111 11111111 11111110 00000000 /24 255.255.255.0 0xffffff00 11111111 11111111 11111111 00000000 /25 255.255.255.128 0xffffff80 11111111 11111111 11111111 10000000 /26 255.255.255.192 0xffffffc0 11111111 11111111 11111111 11000000 /27 255.255.255.224 0xffffffe0 11111111 11111111 11111111 11100000 /28 255.255.255.240 0xfffffff0 11111111 11111111 11111111 11110000 /29 255.255.255.248 0xfffffff8 11111111 11111111 11111111 11111000 /30 255.255.255.252 0xfffffffc 11111111 11111111 11111111 11111100 /31 255.255.255.254 0xfffffffe 11111111 11111111 11111111 11111110 /32 255.255.255.255 0xffffffff 11111111 11111111 11111111 11111111 ]]>