{"id":338,"date":"2013-10-02T15:09:01","date_gmt":"2013-10-02T15:09:01","guid":{"rendered":"http:\/\/blog.shineservers.com\/?p=338"},"modified":"2013-10-02T15:09:01","modified_gmt":"2013-10-02T15:09:01","slug":"internet-protocol-ipv4-subnet-chart","status":"publish","type":"post","link":"https:\/\/www.shineservers.com\/2013\/10\/02\/internet-protocol-ipv4-subnet-chart\/","title":{"rendered":"Internet Protocol (IPv4) Subnet Chart"},"content":{"rendered":"<p>Ths is an Internet Protocol (IPv4) Subnet Chart. You can use this to quickly look up how your might need to subnet your network. At the bottom there is a quick how-to on calculating subnets.<\/p>\n<p>For more information on subnetting, see\u00a0<a href=\"http:\/\/info.internet.isi.edu\/in-notes\/rfc\/files\/rfc1878.txt\">RFC 1817<\/a>\u00a0and\u00a0<a href=\"http:\/\/info.internet.isi.edu\/in-notes\/rfc\/files\/rfc1812.txt\">RFC 1812<\/a>.<\/p>\n<p>Class address ranges:<\/p>\n<ul>\n<li>Class A = 1.0.0.0 to 126.0.0.0<\/li>\n<li>Class B = 128.0.0.0 to 191.255.0.0<\/li>\n<li>Class C = 192.0.1.0 to 223.255.255.0<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p>Reserved address ranges for private (non-routed) use (see\u00a0<a href=\"http:\/\/info.internet.isi.edu\/in-notes\/rfc\/files\/rfc1918.txt\">RFC 1918<\/a>):<\/p>\n<ul>\n<li>10.0.0.0 -&gt; 10.255.255.255<\/li>\n<li>172.16.0.0 -&gt; 172.31.255.255<\/li>\n<li>192.168.0.0 -&gt; 192.168.255.255<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p>Other reserved addresses:<\/p>\n<ul>\n<li>127.0.0.0 is reserved for loopback and IPC on the local host<\/li>\n<li>224.0.0.0 -&gt; 239.255.255.255 is reserved for multicast addresses<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p>Chart notes:<\/p>\n<ul>\n<li>Number of Subnets &#8211; &#8220;( )&#8221; Refers to the number of effective subnets, since the use of subnet numbers of all 0s or all 1s is highly frowned upon and RFC non-compliant.<\/li>\n<li>Number of Hosts &#8211; Refers to the number of effective hosts, excluding the network and broadcast address.<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p><b>Class A<\/b><\/p>\n<table border=\"1\" cellpadding=\"5\">\n<tbody>\n<tr>\n<td><b>Network Bits<\/b><\/td>\n<td><b>Subnet Mask<\/b><\/td>\n<td><b>Number of Subnets<\/b><\/td>\n<td><b>Number of Hosts<\/b><\/td>\n<\/tr>\n<tr>\n<td>\/8<\/td>\n<td>255.0.0.0<\/td>\n<td>0<\/td>\n<td>16777214<\/td>\n<\/tr>\n<tr>\n<td>\/9<\/td>\n<td>255.128.0.0<\/td>\n<td>2 (0)<\/td>\n<td>8388606<\/td>\n<\/tr>\n<tr>\n<td>\/10<\/td>\n<td>255.192.0.0<\/td>\n<td>4 (2)<\/td>\n<td>4194302<\/td>\n<\/tr>\n<tr>\n<td>\/11<\/td>\n<td>255.224.0.0<\/td>\n<td>8 (6)<\/td>\n<td>2097150<\/td>\n<\/tr>\n<tr>\n<td>\/12<\/td>\n<td>255.240.0.0<\/td>\n<td>16 (14)<\/td>\n<td>1048574<\/td>\n<\/tr>\n<tr>\n<td>\/13<\/td>\n<td>255.248.0.0<\/td>\n<td>32 (30)<\/td>\n<td>524286<\/td>\n<\/tr>\n<tr>\n<td>\/14<\/td>\n<td>255.252.0.0<\/td>\n<td>64 (62)<\/td>\n<td>262142<\/td>\n<\/tr>\n<tr>\n<td>\/15<\/td>\n<td>255.254.0.0<\/td>\n<td>128 (126)<\/td>\n<td>131070<\/td>\n<\/tr>\n<tr>\n<td>\/16<\/td>\n<td>255.255.0.0<\/td>\n<td>256 (254)<\/td>\n<td>65534<\/td>\n<\/tr>\n<tr>\n<td>\/17<\/td>\n<td>255.255.128.0<\/td>\n<td>512 (510)<\/td>\n<td>32766<\/td>\n<\/tr>\n<tr>\n<td>\/18<\/td>\n<td>255.255.192.0<\/td>\n<td>1024 (1022)<\/td>\n<td>16382<\/td>\n<\/tr>\n<tr>\n<td>\/19<\/td>\n<td>255.255.224.0<\/td>\n<td>2048 (2046)<\/td>\n<td>8190<\/td>\n<\/tr>\n<tr>\n<td>\/20<\/td>\n<td>255.255.240.0<\/td>\n<td>4096 (4094)<\/td>\n<td>4094<\/td>\n<\/tr>\n<tr>\n<td>\/21<\/td>\n<td>255.255.248.0<\/td>\n<td>8192 (8190)<\/td>\n<td>2046<\/td>\n<\/tr>\n<tr>\n<td>\/22<\/td>\n<td>255.255.252.0<\/td>\n<td>16384 (16382)<\/td>\n<td>1022<\/td>\n<\/tr>\n<tr>\n<td>\/23<\/td>\n<td>255.255.254.0<\/td>\n<td>32768 (32766)<\/td>\n<td>510<\/td>\n<\/tr>\n<tr>\n<td>\/24<\/td>\n<td>255.255.255.0<\/td>\n<td>65536 (65534)<\/td>\n<td>254<\/td>\n<\/tr>\n<tr>\n<td>\/25<\/td>\n<td>255.255.255.128<\/td>\n<td>131072 (131070)<\/td>\n<td>126<\/td>\n<\/tr>\n<tr>\n<td>\/26<\/td>\n<td>255.255.255.192<\/td>\n<td>262144 (262142)<\/td>\n<td>62<\/td>\n<\/tr>\n<tr>\n<td>\/27<\/td>\n<td>255.255.255.224<\/td>\n<td>524288 (524286)<\/td>\n<td>30<\/td>\n<\/tr>\n<tr>\n<td>\/28<\/td>\n<td>255.255.255.240<\/td>\n<td>1048576 (1048574)<\/td>\n<td>14<\/td>\n<\/tr>\n<tr>\n<td>\/29<\/td>\n<td>255.255.255.248<\/td>\n<td>2097152 (2097150)<\/td>\n<td>6<\/td>\n<\/tr>\n<tr>\n<td>\/30<\/td>\n<td>255.255.255.252<\/td>\n<td>4194304 (4194302)<\/td>\n<td>2<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<p><b>Class B<\/b><\/p>\n<table border=\"1\" cellpadding=\"5\">\n<tbody>\n<tr>\n<td><b>Network Bits<\/b><\/td>\n<td><b>Subnet Mask<\/b><\/td>\n<td><b>Number of Subnets<\/b><\/td>\n<td><b>Number of Hosts<\/b><\/td>\n<\/tr>\n<tr>\n<td>\/16<\/td>\n<td>255.255.0.0<\/td>\n<td>0<\/td>\n<td>65534<\/td>\n<\/tr>\n<tr>\n<td>\/17<\/td>\n<td>255.255.128.0<\/td>\n<td>2 (0)<\/td>\n<td>32766<\/td>\n<\/tr>\n<tr>\n<td>\/18<\/td>\n<td>255.255.192.0<\/td>\n<td>4 (2)<\/td>\n<td>16382<\/td>\n<\/tr>\n<tr>\n<td>\/19<\/td>\n<td>255.255.224.0<\/td>\n<td>8 (6)<\/td>\n<td>8190<\/td>\n<\/tr>\n<tr>\n<td>\/20<\/td>\n<td>255.255.240.0<\/td>\n<td>16 (14)<\/td>\n<td>4094<\/td>\n<\/tr>\n<tr>\n<td>\/21<\/td>\n<td>255.255.248.0<\/td>\n<td>32 (30)<\/td>\n<td>2046<\/td>\n<\/tr>\n<tr>\n<td>\/22<\/td>\n<td>255.255.252.0<\/td>\n<td>64 (62)<\/td>\n<td>1022<\/td>\n<\/tr>\n<tr>\n<td>\/23<\/td>\n<td>255.255.254.0<\/td>\n<td>128 (126)<\/td>\n<td>510<\/td>\n<\/tr>\n<tr>\n<td>\/24<\/td>\n<td>255.255.255.0<\/td>\n<td>256 (254)<\/td>\n<td>254<\/td>\n<\/tr>\n<tr>\n<td>\/25<\/td>\n<td>255.255.255.128<\/td>\n<td>512 (510)<\/td>\n<td>126<\/td>\n<\/tr>\n<tr>\n<td>\/26<\/td>\n<td>255.255.255.192<\/td>\n<td>1024 (1022)<\/td>\n<td>62<\/td>\n<\/tr>\n<tr>\n<td>\/27<\/td>\n<td>255.255.255.224<\/td>\n<td>2048 (2046)<\/td>\n<td>30<\/td>\n<\/tr>\n<tr>\n<td>\/28<\/td>\n<td>255.255.255.240<\/td>\n<td>4096 (4094)<\/td>\n<td>14<\/td>\n<\/tr>\n<tr>\n<td>\/29<\/td>\n<td>255.255.255.248<\/td>\n<td>8192 (8190)<\/td>\n<td>6<\/td>\n<\/tr>\n<tr>\n<td>\/30<\/td>\n<td>255.255.255.252<\/td>\n<td>16384 (16382)<\/td>\n<td>2<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<p><b>Class C<\/b><\/p>\n<table border=\"1\" cellpadding=\"5\">\n<tbody>\n<tr>\n<td><b>Network Bits<\/b><\/td>\n<td><b>Subnet Mask<\/b><\/td>\n<td><b>Number of Subnets<\/b><\/td>\n<td><b>Number of Hosts<\/b><\/td>\n<\/tr>\n<tr>\n<td>\/24<\/td>\n<td>255.255.255.0<\/td>\n<td>0<\/td>\n<td>254<\/td>\n<\/tr>\n<tr>\n<td>\/25<\/td>\n<td>255.255.255.128<\/td>\n<td>2 (0)<\/td>\n<td>126<\/td>\n<\/tr>\n<tr>\n<td>\/26<\/td>\n<td>255.255.255.192<\/td>\n<td>4 (2)<\/td>\n<td>62<\/td>\n<\/tr>\n<tr>\n<td>\/27<\/td>\n<td>255.255.255.224<\/td>\n<td>8 (6)<\/td>\n<td>30<\/td>\n<\/tr>\n<tr>\n<td>\/28<\/td>\n<td>255.255.255.240<\/td>\n<td>16 (14)<\/td>\n<td>14<\/td>\n<\/tr>\n<tr>\n<td>\/29<\/td>\n<td>255.255.255.248<\/td>\n<td>32 (30)<\/td>\n<td>6<\/td>\n<\/tr>\n<tr>\n<td>\/30<\/td>\n<td>255.255.255.252<\/td>\n<td>64 (62)<\/td>\n<td>2<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr \/>\n<p><b>Supernetting (CIDR) Chart<\/b><\/p>\n<ul>\n<li>CIDR &#8211; Classless Inter-Domain Routing.<\/li>\n<li>Note: The Number of Class C networks must be contiguous.<br \/>\nFor example, 192.169.1.0\/22 represents the following block of addresses:<br \/>\n192.169.1.0, 192.169.2.0, 192.169.3.0 and 192.169.4.0.<\/li>\n<\/ul>\n<p><b>Class C<\/b><\/p>\n<table border=\"1\" cellpadding=\"5\">\n<tbody>\n<tr>\n<td><b>CIDR Block<\/b><\/td>\n<td><b>Supernet Mask<\/b><\/td>\n<td><b>Number of Class C Addresses<\/b><\/td>\n<td><b>Number of Hosts<\/b><\/td>\n<\/tr>\n<tr>\n<td>\/14<\/td>\n<td>255.252.0.0<\/td>\n<td>1024<\/td>\n<td>262144<\/td>\n<\/tr>\n<tr>\n<td>\/15<\/td>\n<td>255.254.0.0<\/td>\n<td>512<\/td>\n<td>131072<\/td>\n<\/tr>\n<tr>\n<td>\/16<\/td>\n<td>255.255.0.0<\/td>\n<td>256<\/td>\n<td>65536<\/td>\n<\/tr>\n<tr>\n<td>\/17<\/td>\n<td>255.255.128.0<\/td>\n<td>128<\/td>\n<td>32768<\/td>\n<\/tr>\n<tr>\n<td>\/18<\/td>\n<td>255.255.192.0<\/td>\n<td>64<\/td>\n<td>16384<\/td>\n<\/tr>\n<tr>\n<td>\/19<\/td>\n<td>255.255.224.0<\/td>\n<td>32<\/td>\n<td>8192<\/td>\n<\/tr>\n<tr>\n<td>\/20<\/td>\n<td>255.255.240.0<\/td>\n<td>16<\/td>\n<td>4096<\/td>\n<\/tr>\n<tr>\n<td>\/21<\/td>\n<td>255.255.248.0<\/td>\n<td>8<\/td>\n<td>2048<\/td>\n<\/tr>\n<tr>\n<td>\/22<\/td>\n<td>255.255.252.0<\/td>\n<td>4<\/td>\n<td>1024<\/td>\n<\/tr>\n<tr>\n<td>\/23<\/td>\n<td>255.255.254.0<\/td>\n<td>2<\/td>\n<td>512<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"<p>Ths is an Internet Protocol (IPv4) Subnet Chart. You can use this to quickly look up how your might need to subnet your network. At the bottom there is a quick how-to on calculating subnets. For more information on subnetting, see\u00a0RFC 1817\u00a0and\u00a0RFC 1812. Class address ranges: Class A = 1.0.0.0 to 126.0.0.0 Class B = [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[58],"tags":[],"class_list":["post-338","post","type-post","status-publish","format-standard","hentry","category-cpanel-control-panel"],"acf":[],"aioseo_notices":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.shineservers.com\/wp-json\/wp\/v2\/posts\/338","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.shineservers.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.shineservers.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.shineservers.com\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.shineservers.com\/wp-json\/wp\/v2\/comments?post=338"}],"version-history":[{"count":0,"href":"https:\/\/www.shineservers.com\/wp-json\/wp\/v2\/posts\/338\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.shineservers.com\/wp-json\/wp\/v2\/media?parent=338"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.shineservers.com\/wp-json\/wp\/v2\/categories?post=338"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.shineservers.com\/wp-json\/wp\/v2\/tags?post=338"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}