http durum kodu 301, istenen kaynağın kalıcı olarak yeni bir URL'ye taşındığı anlamına gelir. Gelecekteki tüm istekler yeni adresi kullanmalıdır.
Tarayıcı kullanıcıyı otomatik olarak yeni adrese yönlendirecek ve arama motorları dizinlerini güncelleyecektir.
GET / HTTP/1.1 Host: ipv4.com Accept: */* User-Agent: Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; [email protected])
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Mono";font-style:italic;font-weight:700;font-display:block;src:url('https://ipv4.com/wp-content/themes/ipv4com/assets/fonts/IBMPlexMono-BoldItalic.woff2') format('woff2');font-stretch:normal;} </style> <link rel="icon" href="https://mpfs.io/assets/ipv4com/24/05/icon.svg" sizes="32x32" /> <link rel="icon" href="https://mpfs.io/assets/ipv4com/24/05/icon.svg" sizes="192x192" /> <link rel="apple-touch-icon" href="https://mpfs.io/assets/ipv4com/24/05/icon.svg" /> <meta name="msapplication-TileImage" content="https://mpfs.io/assets/ipv4com/24/05/icon.svg" /> </head> <body class="home page-template page-template-front page page-id-4 wp-custom-logo wp-embed-responsive"> <div class="wp-site-blocks"><header class="site-header wp-block-template-part"></header> <main class="wp-block-group is-layout-flow wp-block-group-is-layout-flow" style="margin-top:0;margin-bottom:0"> <div class="entry-content wp-block-post-content has-global-padding is-layout-constrained wp-block-post-content-is-layout-constrained"> <div class="wp-block-group alignfull has-neutral-background-color has-background has-global-padding is-layout-constrained wp-block-group-is-layout-constrained"> <h2 class="wp-block-heading has-text-align-center ghostkit-custom-Z257bwT has-text-color has-4-x-large-font-size" id="ipv4-com" style="color:#0000cc">IPv4.com</h2> </div> <div class="wp-block-columns is-layout-flex wp-container-core-columns-is-layout-1 wp-block-columns-is-layout-flex" style="padding-top:var(--wp--preset--spacing--50);padding-bottom:var(--wp--preset--spacing--50)"> <div class="wp-block-column is-layout-flow wp-block-column-is-layout-flow"> <h2 class="wp-block-heading" id="what-is-ipv4">What is IPv4?</h2> <h3 class="wp-block-heading" id="ip-addresses">IP addresses</h3> <p>Internet Protocol (IP) addresses are the numbers identifying the interfaces that send and receive internet data. Every phone, tablet, and laptop will use at least one IP address when connected to a network.</p> <p>The same is true for the services they connect to and the infrastructure that carries the data. Each server needs an IP address, as do the routers and switches that connect them.</p> <h3 class="wp-block-heading" id="first-and-most-widely-deployed-version">First and most widely deployed version</h3> <p>IPv4 is the first version of the Internet Protocol. Despite being developed and deployed in the 1980s, it still dominates. More than half of all the internet traffic <a href="https://www.google.com/intl/en/ipv6/statistics.html">Google sees</a> uses IPv4 in March 2024.</p> <p>IPv6, the new version of the Internet Protocol, carries a significant proportion of traffic. But IPv4 will continue to be relevant for years to come. You can read more about IPv6 at ipv6.com.</p> <p>IPv4 has a 32-bit address space. That means just over 4 billion addresses were possible using the format. Some of these addresses are reserved for things like private networks and one-to-many multicast use. This brings the number of addresses available for ordinary internet use down to 3.7 billion. That is less than half an address per person on the planet.</p> <h3 class="wp-block-heading" id="early-adopters">Early adopters</h3> <p>IPv4 was adopted when computers were very expensive. This meant there were very few users. The iconic PDP-11 minicomputer only sold <a href="https://history-computer.com/dec-pdp-11-computer/">about 170,000</a> units between the 1970s and 1990s. IBM’s PC was introduced around the same time as IPv4 and cost $1,565 each ($5,342 in 2024 dollars). In contrast, in 2024, a budget smartphone is available for under $500.</p> <p>This meant that IPv4 addresses were – relative to the number of devices in use – both plentiful and free. The shortage was the computers to use them.</p> <p>So, engineers saved money on the specialist computers used to direct internet traffic by just having three sizes of network.</p> <ul> <li>Class A networks were big and got 16 million addresses</li> <li>Class B networks were medium and got 65,536 addresses</li> <li>Class C were small and got 256 addresses</li> </ul> <p>When an organization needed several Class Cs, they’d get a Class B. And those that needed lots of Class Bs might get a Class A.</p> <h3 class="wp-block-heading" id="oversupply-and-under-supply">Oversupply and Under-supply</h3> <p>An organization that needed 5,000 IPv4 addresses might have been allocated a Class B – known as a “/16” today. This was administratively better than managing 20 or more Class Cs, now known as “/24”s.</p> <p>But even with substantial growth between then and now that organization could be using fewer than half of those 65,536 IPv4 addresses. Meanwhile, many new organizations struggle to get any addresses because the pool of unallocated addresses has run dry.</p> <p>Markets are effective at moving resources where they are most needed. The communities that manage the policies governing the distribution of IP addresses have developed transfer policies. These allow organizations with excess to transfer it to others who need it.</p> <h3 class="wp-block-heading" id="efficiency">Efficiency</h3> <p>IPv4 remains relevant but organizations need to make every address count. <a href="https://aws.amazon.com/blogs/aws/new-aws-public-ipv4-address-charge-public-ip-insights/">AWS charges</a> almost $44 per address per year if it is used continuously. So, address compression technologies like NAT and CGNAT can lower costs.</p> <p>Another is IPv6. Lots of internet traffic can use IPv6, as can internal networks. Deploying IPv6 can help you reduce the amount of IPv4 traffic you send and receive. And that means you might not need as many addresses.</p> <p><br></p> </div> <div class="wp-block-column is-layout-flow wp-block-column-is-layout-flow"> <h3 class="wp-block-heading" id="live-market-data">Live Market Data</h3> <p>One online marketplace, IPv4.Global, publishes anonymous, worldwide accounts of its IPv4 transfers. This data is available in a variety of forms and is subject to considerable user specifications so that specific IPv4 block sizes, regions, and timeframes can be considered. This information can be valuable to buyers, sellers, and those leasing addresses as significant changes in traded values occur regularly.</p> <figure class="wp-block-image size-large"><img fetchpriority="high" decoding="async" width="1430" height="824" src="https://a.mpcdn.io/ipv4com/24/06/ipv4-pricing.png?auto=compress%2Cformat&fit=scale&h=590&ixlib=php-3.3.1&w=1024&wpsize=large" alt="" class="wp-image-48" srcset="https://a.mpcdn.io/ipv4com/24/06/ipv4-pricing.png?auto=compress%2Cformat&fit=scale&h=173&ixlib=php-3.3.1&w=300&wpsize=medium 300w, https://a.mpcdn.io/ipv4com/24/06/ipv4-pricing.png?auto=compress%2Cformat&fit=scale&h=590&ixlib=php-3.3.1&w=1024&wpsize=large 1024w, https://a.mpcdn.io/ipv4com/24/06/ipv4-pricing.png?auto=compress%2Cformat&fit=scale&h=443&ixlib=php-3.3.1&w=768&wpsize=medium_large 768w, https://a.mpcdn.io/ipv4com/24/06/ipv4-pricing.png?auto=compress%2Cformat&fit=scale&h=885&ixlib=php-3.3.1&w=1536&wpsize=1536x1536 1536w, https://a.mpcdn.io/ipv4com/24/06/ipv4-pricing.png?auto=compress%2Cformat&fit=scale&h=1180&ixlib=php-3.3.1&w=2048&wpsize=2048x2048 2048w, https://a.mpcdn.io/ipv4com/24/06/ipv4-pricing.png?auto=compress%2Cformat&fit=scale&h=288&ixlib=php-3.3.1&w=500&wpsize=awb_sm 500w, https://a.mpcdn.io/ipv4com/24/06/ipv4-pricing.png?auto=compress%2Cformat&fit=scale&h=461&ixlib=php-3.3.1&w=800&wpsize=awb_md 800w, https://a.mpcdn.io/ipv4com/24/06/ipv4-pricing.png?auto=compress%2Cformat&fit=scale&h=738&ixlib=php-3.3.1&w=1280&wpsize=awb_lg 1280w, https://a.mpcdn.io/ipv4com/24/06/ipv4-pricing.png?auto=compress%2Cformat&ixlib=php-3.3.1 1430w" sizes="(max-width: 1430px) 100vw, 1430px" /></figure> <p class="has-small-font-size">Data from <a href="https://ipv4.global/?utm_source=ipv4.com&utm_medium=referral&utm_campaign=home-page&utm_content=home-page_live-market-data_caption_front-page" data-type="link" data-id="https://ipv4.global/?utm_source=ipv4.com&utm_medium=referral&utm_campaign=home-page&utm_content=home-page_live-market-data_front-page_caption">IPv4.Global</a>. For access to detailed information go to their <a href="https://ipv4.global/reports?utm_source=ipv4.com&utm_medium=referral&utm_campaign=home-page&utm_content=home-page_live-market-data_caption_reports" data-type="link" data-id="https://ipv4.global/reports?utm_source=ipv4.com&utm_medium=referral&utm_campaign=home-page&utm_content=home-page_live-market-data_reports_caption">Reports</a> or live <a href="https://auctions.ipv4.global/prior-sales?utm_source=ipv4.com&utm_medium=referral&utm_campaign=home-page&utm_content=home-page_live-market-data_caption_prior-sales" data-type="link" data-id="https://auctions.ipv4.global/prior-sales?utm_source=ipv4.com&utm_medium=referral&utm_campaign=home-page&utm_content=home-page_live-market-data_caption_prior-sales">Prior Sales</a> page.<br></p> <h3 class="wp-block-heading" id="how-do-networks-assign-addresses">Unique versus private</h3> <p>Not all IPv4 addresses are unique.</p> <p>Unique IPv4 addresses are needed to send data over the internet. If those addresses were not unique the traffic might go to the wrong place. But data sent across a <a href="https://ipv4.global/events/private-address-space?utm_source=ipv4.com&utm_medium=referral&utm_campaign=home-page&utm_content=home-page_unique-versus-private_text_private-address-space" data-type="link" data-id="https://ipv4.global/events/private-address-space?utm_source=ipv4.com&utm_medium=referral&utm_campaign=home-page&utm_content=home-page_unique-versus-private_text_private-address-space">private network</a> does not need globally unique addresses. So, three blocks of IPv4 addresses are reserved for use on private networks.</p> <p>They are:</p> <ul> <li>10.0.0.0/8 – a block of 16 million addresses</li> <li>172.16.0.0/12 – a block of 1 million addresses</li> <li>192.168.0.0/16 – a block of 65,563 addresses</li> </ul> <p>Private networks can all use addresses from these reserved blocks internally. Then, an address translator at the edge can rewrite addresses in data packets. Techniques like this allow multiple devices to share one unique address. This expands the number of people those 3.7 billion IPv4 addresses can serve.</p> <h3 class="wp-block-heading" id="cidr-chart">CIDR Chart</h3> <p>The early internet only supported three sizes of network. The modern internet supports lots of different network sizes. This is done using a technology called Classless Inter-Domain Routing, or <a href="https://ipv4.global/blog/making-cidr?utm_source=ipv4.com&utm_medium=referral&utm_campaign=home-page&utm_content=home-page_cidr-chart_text_making-cidr">CIDR</a>.</p> <p>The smallest network likely to be usable on the internet is a /24 (256 addresses). But a network could use 512 addresses instead. This would be a /23. This chart shows the full range of CIDR network sizes available.</p> <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <style> table { width: 100%; border-collapse: collapse; } th, td { border: 2px solid #005BAC; padding: 2px 32px 2px 8px; text-align: right; color: #005BAC; font-weight: 600; font-size: 14px; } th { background-color: #005BAC; color: white; text-align: center; padding: 4px 4px 4px 4px; font-weight: 800; } tr:not(.header) { background-color: #white; } </style> </head> <body> <table> <thead> <tr class="header"> <th>CIDR</th> <th>SUBNET MASK</th> <th>IPv4</th> </tr> </thead> <tbody> <tr> <td>/0</td> <td>0.0.0.0</td> <td>4,294,967,296</td> </tr> <tr> <td>/1</td> <td>128.0.0.0</td> <td>2,147,483,648</td> </tr> <tr> <td>/2</td> <td>192.0.0.0</td> <td>1,073,741,824</td> </tr> <tr> <td>/3</td> <td>224.0.0.0</td> <td>536,870,912</td> </tr> <tr> <td>/4</td> <td>240.0.0.0</td> <td>268,435,456</td> </tr> <tr> <td>/5</td> <td>248.0.0.0</td> <td>134,217,728</td> </tr> <tr> <td>/6</td> <td>252.0.0.0</td> <td>67,108,864</td> </tr> <tr> <td>/7</td> <td>254.0.0.0</td> <td>33,554,432</td> </tr> <tr> <td>/8</td> <td>255.0.0.0</td> <td>16,777,216</td> </tr> <tr> <td>/9</td> <td>255.128.0.0</td> <td>8,388,608</td> </tr> <tr> <td>/10</td> <td>255.192.0.0</td> <td>4,194,304</td> </tr> <tr> <td>/11</td> <td>255.224.0.0</td> <td>2,097,152</td> </tr> <tr> <td>/12</td> <td>255.240.0.0</td> <td>1,048,576</td> </tr> <tr> <td>/13</td> <td>255.248.0.0</td> <td>524,288</td> </tr> <tr> <td>/14</td> <td>255.252.0.0</td> <td>262,144</td> </tr> <tr> <td>/15</td> <td>255.254.0.0</td> <td>131,072</td> </tr> <tr> <td>/16</td> <td>255.255.0.0</td> <td>65,536</td> </tr> <tr> <td>/17</td> <td>255.255.128.0</td> <td>32,768</td> </tr> <tr> <td>/18</td> <td>255.255.192.0</td> <td>16,384</td> </tr> <tr> <td>/19</td> <td>255.255.224.0</td> <td>8,192</td> </tr> <tr> <td>/20</td> <td>255.255.240.0</td> <td>4,096</td> </tr> <tr> <td>/21</td> <td>255.255.248.0</td> <td>2,048</td> </tr> <tr> <td>/22</td> <td>255.255.252.0</td> <td>1,024</td> </tr> <tr> <td>/23</td> <td>255.255.254.0</td> <td>512</td> </tr> <tr> <td>/24</td> <td>255.255.255.0</td> <td>256</td> </tr> </tbody> </table> </body> </html> <p class="has-small-font-size">Fig 1: Networks sizes and CIDR notation</p> <h3 class="wp-block-heading" id="ipv4-exhaustion">IPv4 Exhaustion</h3> <p>“IPv4 exhaustion” refers to the moment when the Internet Assigned Numbers Authority (IANA) depleted its pool of available IPv4 addresses. Then, none could be assigned to RIRs and so thereafter to connected devices globally. Of course, the exhaustion of IPv4 supply at the regional distributors (the RIRs) inevitably followed.</p> <p>Not long thereafter <a href="https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.apnic.net%2F&data=05%7C02%7CPTobey%40hilcoglobal.com%7C7aa7b2b5792947ee47dd08dc856e6482%7Cff73069906cc473891ab5061e4890dca%7C0%7C0%7C638531956435541576%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C0%7C%7C%7C&sdata=icyG5xE50S6V9pyiV82ObSkiC1Ya09YXJ19dDPgHBOI%3D&reserved=0" target="_blank" rel="noreferrer noopener">APNIC</a> (the Asia-Pacific registry) exhausted all its available IP addresses. <a href="https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.ripe.net%2F&data=05%7C02%7CPTobey%40hilcoglobal.com%7C7aa7b2b5792947ee47dd08dc856e6482%7Cff73069906cc473891ab5061e4890dca%7C0%7C0%7C638531956435558939%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C0%7C%7C%7C&sdata=FfAfwNxCbDhv0JZmxG6uvxy%2F9ONCTaTZCY2TUXJ2JFI%3D&reserved=0" target="_blank" rel="noreferrer noopener">RIPE</a> (Europe) ran out in 2012, <a href="https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.lacnic.net%2F&data=05%7C02%7CPTobey%40hilcoglobal.com%7C7aa7b2b5792947ee47dd08dc856e6482%7Cff73069906cc473891ab5061e4890dca%7C0%7C0%7C638531956435569780%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C0%7C%7C%7C&sdata=1vXUUWFI0EqTD8poahe5U0vpVKEMoZvLJhnGTL1J%2FlA%3D&reserved=0" target="_blank" rel="noreferrer noopener">LACNIC</a> in 2014 and <a href="https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.arin.net%2F&data=05%7C02%7CPTobey%40hilcoglobal.com%7C7aa7b2b5792947ee47dd08dc856e6482%7Cff73069906cc473891ab5061e4890dca%7C0%7C0%7C638531956435576752%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C0%7C%7C%7C&sdata=mk40QdDMgjLVVrzj2PvhYVtYTKAy9Os4RodV1OVdpk4%3D&reserved=0" target="_blank" rel="noreferrer noopener">ARIN</a> in 2015. AFRINIC, the African registry, has nearly depleted its supply. RIRs have established <a href="https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fipv4.global%2Fblog%2Fipv4-waiting-lists%2F&data=05%7C02%7CPTobey%40hilcoglobal.com%7C7aa7b2b5792947ee47dd08dc856e6482%7Cff73069906cc473891ab5061e4890dca%7C0%7C0%7C638531956435583072%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C0%7C%7C%7C&sdata=Qa%2FFUbt4Zoq3eXRc6htGGvWcVPGVcTiWXyV9HRt%2BsEg%3D&reserved=0" target="_blank" rel="noreferrer noopener">waiting lists</a> with varied wait times. Because of this, we can clearly identify one of the most obvious factors that contributes to currently high IPv4 prices: they are in unprecedented low supply.<br></p> </div> </div> </div> </main> <footer class="site-footer wp-block-template-part"></footer></div> <script id="wp-block-template-skip-link-js-after"> ( function() { var skipLinkTarget = document.querySelector( 'main' ), sibling, skipLinkTargetID, skipLink; // Early exit if a skip-link target can't be located. if ( ! skipLinkTarget ) { return; } /* * Get the site wrapper. * The skip-link will be injected in the beginning of it. */ sibling = document.querySelector( '.wp-site-blocks' ); // Early exit if the root element was not found. if ( ! sibling ) { return; } // Get the skip-link target's ID, and generate one if it doesn't exist. skipLinkTargetID = skipLinkTarget.id; if ( ! skipLinkTargetID ) { skipLinkTargetID = 'wp--skip-link--target'; skipLinkTarget.id = skipLinkTargetID; } // Create the skip link. skipLink = document.createElement( 'a' ); skipLink.classList.add( 'skip-link', 'screen-reader-text' ); skipLink.href = '#' + skipLinkTargetID; skipLink.innerHTML = 'Skip to content'; // Inject the skip link. sibling.parentElement.insertBefore( skipLink, sibling ); }() ); </script> <script src="https://ipv4.com/wp-content/plugins/ghostkit/assets/vendor/ivent/dist/ivent.min.js?ver=0.2.0" id="ivent-js"></script> <script id="ghostkit-helper-js-extra"> var ghostkitVariables = {"version":"3.2.4","pro":"","themeName":"Trolley","settings":[],"disabledBlocks":[],"media_sizes":{"sm":576,"md":768,"lg":992,"xl":1200},"timezone":"America\/New_York","googleMapsAPIKey":"","googleMapsAPIUrl":"https:\/\/maps.googleapis.com\/maps\/api\/js?v=3.exp&language=en","googleReCaptchaAPISiteKey":"","googleReCaptchaAPISecretKey":"","sidebars":[],"icons":[],"shapes":[],"fonts":[],"customTypographyList":[],"admin_url":"https:\/\/ipv4.com\/wp-admin\/","admin_templates_url":"https:\/\/ipv4.com\/wp-admin\/edit.php?post_type=ghostkit_template"}; </script> <script id="ghostkit-helper-js-before"> if (ghostkitVariables) { ghostkitVariables.allowPluginColorPalette = false; } if (ghostkitVariables) { ghostkitVariables.allowPluginCustomizer = false; } </script> <script src="https://ipv4.com/wp-content/plugins/ghostkit/build/assets/js/helper.js?ver=92f8f9a51426f7f1344e" id="ghostkit-helper-js"></script> <script src="https://ipv4.com/wp-content/plugins/ghostkit/build/assets/js/event-fallbacks.js?ver=fd98446294b25194fdff" id="ghostkit-event-fallbacks-js"></script> <script src="https://ipv4.com/wp-content/plugins/ghostkit/assets/vendor/motion/dist/motion.min.js?ver=10.16.2" id="motion-js"></script> <script src="https://ipv4.com/wp-content/plugins/ghostkit/build/assets/js/main.js?ver=e413b5dd702e70f45593" id="ghostkit-js"></script> <script src="https://ipv4.com/wp-content/plugins/ghostkit/build/gutenberg/extend/effects/frontend.js?ver=0e89fdfc9b3f7caaefff" id="ghostkit-extension-effects-js"></script> <script src="https://ipv4.com/wp-content/plugins/ghostkit/build/gutenberg/style-variants/core-list/frontend.js?ver=a973ba5275fec96abda8" id="ghostkit-style-variant-core-list-js"></script> </body> </html>