{"id":1006,"date":"2022-09-29T16:15:12","date_gmt":"2022-09-29T06:15:12","guid":{"rendered":"https:\/\/catharsis.net.au\/blog\/?p=1006"},"modified":"2022-09-29T16:19:56","modified_gmt":"2022-09-29T06:19:56","slug":"subnet-mask-reference-table","status":"publish","type":"post","link":"https:\/\/catharsis.net.au\/blog\/subnet-mask-reference-table\/","title":{"rendered":"Subnet Mask Reference Table"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Below is the cheatsheet for network admins for subnet masks:<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\/<\/th><th>Addresses<\/th><th>Hosts<\/th><th>Netmask<\/th><th>Amount of a Class C<\/th><\/tr><\/thead><tbody><tr><td>\/30<\/td><td>4<\/td><td>2<\/td><td>255.255.255.252<\/td><td>1\/64<\/td><\/tr><tr><td>\/29<\/td><td>8<\/td><td>6<\/td><td>255.255.255.248<\/td><td>1\/32<\/td><\/tr><tr><td>\/28<\/td><td>16<\/td><td>14<\/td><td>255.255.255.240<\/td><td>1\/16<\/td><\/tr><tr><td>\/27<\/td><td>32<\/td><td>30<\/td><td>255.255.255.224<\/td><td>1\/8<\/td><\/tr><tr><td>\/26<\/td><td>64<\/td><td>62<\/td><td>255.255.255.192<\/td><td>1\/4<\/td><\/tr><tr><td>\/25<\/td><td>128<\/td><td>126<\/td><td>255.255.255.128<\/td><td>1\/2<\/td><\/tr><tr><td>\/24<\/td><td>256<\/td><td>254<\/td><td>255.255.255.0<\/td><td>1<\/td><\/tr><tr><td>\/23<\/td><td>512<\/td><td>510<\/td><td>255.255.254.0<\/td><td>2<\/td><\/tr><tr><td>\/22<\/td><td>1024<\/td><td>1022<\/td><td>255.255.252.0<\/td><td>4<\/td><\/tr><tr><td>\/21<\/td><td>2048<\/td><td>2046<\/td><td>255.255.248.0<\/td><td>8<\/td><\/tr><tr><td>\/20<\/td><td>4096<\/td><td>4094<\/td><td>255.255.240.0<\/td><td>16<\/td><\/tr><tr><td>\/19<\/td><td>8192<\/td><td>8190<\/td><td>255.255.224.0<\/td><td>32<\/td><\/tr><tr><td>\/18<\/td><td>16384<\/td><td>16382<\/td><td>255.255.192.0<\/td><td>64<\/td><\/tr><tr><td>\/17<\/td><td>32768<\/td><td>32766<\/td><td>255.255.128.0<\/td><td>128<\/td><\/tr><tr><td>\/16<\/td><td>65536<\/td><td>65534<\/td><td>255.255.0.0<\/td><td>256<\/td><\/tr><\/tbody><\/table><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Below is the cheatsheet for network admins for subnet masks: \/ Addresses Hosts Netmask Amount of a Class C \/30 4 2 255.255.255.252 1\/64 \/29 8 6 255.255.255.248 1\/32 \/28 16 14 255.255.255.240 1\/16 \/27 32 30 255.255.255.224 1\/8 \/26 64 62 255.255.255.192 1\/4 \/25 128 126 255.255.255.128 1\/2 \/24 256 254 255.255.255.0 1 \/23 [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":1010,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[34,7],"tags":[61,44,62,59,60],"class_list":["post-1006","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-awareness","category-technology","tag-mask","tag-network","tag-networking","tag-subnet","tag-subnet-mask"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.7 - 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