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<h2 id="ansi-code-page">ANSI code page</h2> <p>ANSI code pages (officially called "Windows code pages"<a class="footnote-ref" id="fnref:2" href="#fn:2"><sup>2</sup></a> after Microsoft accepted the former term being a misnomer<a class="footnote-ref" id="fnref:3" href="#fn:3"><sup>3</sup></a>) are used for native non-Unicode (say, <a href="/facts/Byte_oriented/FXd1gTfC">byte oriented</a>) applications using a <a href="/facts/Graphical_user_interface/wBlQFWDP">graphical user interface</a> on Windows systems. The term "ANSI" is a misnomer because these Windows code pages do not comply with any <a href="/facts/American_National_Standards_Institute/p3d1TQCb">ANSI (American National Standards Institute)</a> standard; <a href="/facts/Code_Page_1252/eyM337y0">code page 1252</a> was based on an early ANSI draft that became the international standard <a href="/facts/ISO_8859-1/xPNVSEE6">ISO 8859-1</a>,<a class="footnote-ref" id="fnref:4" href="#fn:4"><sup>4</sup></a> which adds a further 32 control codes and space for 96 printable characters. Among other differences, Windows code-pages allocate printable characters to the supplementary control code space, making them at best illegible to standards-compliant operating systems.) </p><p>Most <a href="/facts/Legacy_system/YvYjMcCz">legacy</a> "ANSI" code pages have code page numbers in the pattern 125x. However, <a href="/facts/Windows-874/sQasldhr">874</a> (Thai) and the East Asian multi-byte "ANSI" code pages (<a href="/facts/Windows-31J/XcwTNKIc">932</a>, <a href="/facts/Windows-936/NGPrW1TE">936</a>, <a href="/facts/Unified_Hangul_Code/a4JIr4EW">949</a>, <a href="/facts/Code_page_950/vUDxwSxs">950</a>), all of which are also used as OEM code pages, are numbered to match IBM encodings, none of which are identical to the Windows encodings (although most are similar). While <a href="/facts/Windows-1258/caESqxDn">code page 1258</a> is also used as an OEM code page, it is original to Microsoft rather than an extension to an existing encoding. IBM have assigned their own, different numbers for Microsoft's variants, these are given for reference in the lists below where applicable. </p><p>All of the 125x Windows code pages, as well as 874 and 936, are labelled by <a href="/facts/Internet_Assigned_Numbers_Authority/b6MlP6zQ">Internet Assigned Numbers Authority</a> (IANA) as "Windows-<i>number</i>", although "Windows-936" is treated as a synonym for "<a href="/facts/GBK_(character_encoding)/Pq0qUQzf">GBK</a>". Windows code page 932 is instead labelled as "Windows-31J".<a class="footnote-ref" id="fnref:5" href="#fn:5"><sup>5</sup></a> </p><p>ANSI Windows code pages, and especially the code page <a href="/facts/Windows-1252/eyM337y0">1252</a>, were so called since they were purportedly based on drafts submitted or intended for ANSI. However, ANSI and <a href="/facts/International_Organization_for_Standardization/IacYR7Yg">ISO</a> have not standardized any of these code pages. Instead they are either:<a class="footnote-ref" id="fnref:6" href="#fn:6"><sup>6</sup></a> </p> <ul><li>Supersets of the standard sets such as those of <a href="/facts/ISO_8859/KFAUkAQ9">ISO 8859</a> and the various national standards (like <a href="/facts/Windows-1252/eyM337y0">Windows-1252</a> vs. <a href="/facts/ISO-8859-1/xPNVSEE6">ISO-8859-1</a>),</li> <li>Major modifications of these (making them incompatible to various degrees, like <a href="/facts/Windows-1250/38Vsc5tW">Windows-1250</a> vs. <a href="/facts/ISO-8859-2/rIjCMEr3">ISO-8859-2</a>)</li> <li>Having no parallel encoding (like <a href="/facts/Windows-1257/D7r331c9">Windows-1257</a> vs. <a href="/facts/ISO-8859-4/eGK3wSdV">ISO-8859-4</a>; <a href="/facts/ISO-8859-13/jAHecGku">ISO-8859-13</a> was introduced much later). Also, <a href="/facts/Windows-1251/mb3epF8S">Windows-1251</a> follows neither the ISO-standardised <a href="/facts/ISO-8859-5/RCKfCDGm">ISO-8859-5</a> nor the then-prevailing <a href="/facts/KOI-8/EeAoW6UL">KOI-8</a>.</li></ul> <p>Microsoft assigned about twelve of the <a href="/facts/Typography/byx4sANl">typography</a> and business characters (including notably, the <a href="/facts/Euro_sign/boK32Hs4">euro sign</a>, €) in CP1252 to the <a href="/facts/Code_point/R184ugJX">code points</a> 0x80–0x9F that, in ISO 8859, are assigned to <a href="/facts/C1_control_codes/bBp1dGVl">C1 control codes</a>. These assignments are also present in many other ANSI/Windows code pages at the same code-points. Windows did not use the C1 control codes, so this decision had no direct effect on Windows users. However, if included in a file transferred to a standards-compliant platform like Unix or MacOS, the information was invisible and potentially disruptive. </p> <h2 id="oem-code-page">OEM code page</h2> <p>The OEM code pages (<a href="/facts/Original_equipment_manufacturer/hmUhIWaS">original equipment manufacturer</a>) are used by <a href="/facts/Win32_console/p8vz2Cdk">Win32 console</a> applications, and by <a href="/facts/Virtual_DOS_machine/Wv1jNzBx">virtual DOS</a>, and can be considered a holdover from <a href="/facts/DOS/sWwDXNmX">DOS</a> and the original <a href="/facts/IBM_PC/yhcJGMPL">IBM PC</a> architecture. A separate suite of code pages was implemented not only due to compatibility, but also because the <a href="/facts/VGA-compatible_text_mode/g8XR6ET1">fonts of VGA (and descendant) hardware</a> suggest encoding of <a href="/facts/Box-drawing_character/jKI4QHeG">line-drawing characters</a> to be compatible with <a href="/facts/Code_page_437/jx27vCbb">code page 437</a>. Most OEM code pages share many code points, particularly for non-letter characters, with the second (non-ASCII) half of CP437. </p><p>A typical OEM code page, in its second half, does not resemble any ANSI/Windows code page even roughly. Nevertheless, two single-byte, fixed-width code pages (874 for <a href="/facts/Thai_language/PnaLdG77">Thai</a> and 1258 for <a href="/facts/Vietnamese_language/J3Pbx58C">Vietnamese</a>) and four multibyte <a href="/facts/CJK_characters/TGz9tR4C">CJK</a> code pages (<a href="/facts/Code_page_932_(Microsoft_Windows)/XcwTNKIc">932</a>, <a href="/facts/Code_page_1386/NGPrW1TE">936</a>, <a href="/facts/Windows-949/a4JIr4EW">949</a>, <a href="/facts/Windows-950/vUDxwSxs">950</a>) are used as both OEM and ANSI code pages. Code page 1258 uses <a href="/facts/Combining_diacritic/nH8SFbIL">combining diacritics</a>, as Vietnamese requires more than 128 letter-diacritic combinations. This is in contrast to <a href="/facts/VISCII/vWUwST36">VISCII</a>, which replaces some of the <a href="/facts/C0_control_codes/bBp1dGVl">C0</a> (i.e. ASCII) control codes. </p> <h2 id="history">History</h2> <p>Early computer systems had limited storage and restricted the number of <a href="/facts/Bit/S972NSaD">bits</a> available to encode a <a href="/facts/Character_(computing)/X2zKLFFB">character</a>. Although earlier proprietary encodings had fewer, the <a href="/facts/ASCII/vGUI33Qu">American Standard Code for Information Interchange</a> (ASCII) settled on seven bits: this was sufficient to encode a 96 member subset of the characters used in the US. As eight-bit <a href="/facts/Byte/BNHUp9Qq">bytes</a> came to predominate, Microsoft (and others) expanded the repertoire to 224, to handle a variety of other uses such a box-drawing symbols. The need to provide <a href="/facts/Precomposed_character/LhKrFQ4Y">precomposed characters</a> for the Western European and South American markets required a different character set: Microsoft established the principle of code pages, one for each alphabet. For the <a href="/facts/List_of_writing_systems/lMVN4qrb">segmental scripts</a> used in most of Africa, the Americas, southern and south-east Asia, the Middle East and Europe, a character needs just one byte but two or more bytes are needed for the <a href="/facts/Ideographic/7NvclbIG">ideographic</a> sets used in the rest of the world. The code-page model was unable to handle this challenge. </p><p>Since the late 1990s, software and systems have adopted <a href="/facts/Unicode/DDu3MfPV">Unicode</a> as their preferred character encoding format: Unicode is designed to handle millions of characters. All current Microsoft products and <a href="/facts/Application_program_interfaces/GMlN4vUr">application program interfaces</a> use Unicode internally, but some applications continue to use the default encoding of the computer's 'locale' when reading and writing text data to files or standard output. Therefore, files may still be encountered that are legible and intelligible in one part of the world but unintelligible <a href="/facts/Mojibake/ca2k33dL">mojibake</a> in another. </p> <h3>UTF-8, UTF-16</h3> <p>Microsoft adopted a Unicode encoding (first the now-obsolete <a href="/facts/UCS-2/7Tn6LPLw">UCS-2</a>, which was then Unicode's only encoding), i.e. <a href="/facts/UTF-16/ofSmbCem">UTF-16</a> for all its <a href="/facts/Operating_system/8XTuvMh2">operating systems</a> from Windows NT onwards, but additionally supports <a href="/facts/UTF-8/xlaVHSyf">UTF-8</a> (aka CP_UTF8) since <a href="/facts/Windows_10_version_history/flA9H1oo">Windows 10 version 1803</a>.<a class="footnote-ref" id="fnref:7" href="#fn:7"><sup>7</sup></a> UTF-16 uniquely encodes all Unicode characters in the <a href="/facts/Basic_Multilingual_Plane/TATj3rUP">Basic Multilingual Plane</a> (BMP) using 16 bits but the remaining Unicode (e.g. <a href="/facts/Emoji/Qkp7gwBH">emojis</a>) is encoded with a 32-bit (four byte) code – while the rest of the industry (<a href="/facts/Unix-like/YAKrAxzd">Unix-like</a> systems and the web), and now Microsoft chose <a href="/facts/UTF-8/xlaVHSyf">UTF-8</a> (which uses one byte for the 7-bit <a href="/facts/ASCII/vGUI33Qu">ASCII</a> character set, two or three bytes for other characters in the BMP, and four bytes for the remainder). </p> <h2 id="list">List</h2> <p>The following Windows code pages exist: </p> <h3>Windows-125x series</h3> <p>These nine code pages are all <a href="/facts/Extended_ASCII/Agfdo1R0">extended ASCII</a> 8-bit <a href="/facts/SBCS/YGqTskfH">SBCS</a> encodings, and were designed by <a href="/facts/Microsoft/nGIDDXdx">Microsoft</a> for use as ANSI codepages on Windows. They are commonly known by their IANA-registered<a class="footnote-ref" id="fnref:8" href="#fn:8"><sup>8</sup></a> names as windows-<number>, but are also sometimes called cp<number>, "cp" for "code page". They are all used as ANSI code pages; Windows-1258 is also used as an OEM code page. </p><p>The Windows-125x series includes nine of the ANSI code pages, and mostly covers scripts from <a href="/facts/Europe/DTAtrKfh">Europe</a> and <a href="/facts/West_Asia/xXM15vIz">West Asia</a> with the addition of <a href="/facts/Vietnam/0ulfA8Eq">Vietnam</a>. System encodings for <a href="/facts/Thai_script/uxnpJWg9">Thai</a> and for <a href="/facts/East_Asia/D8yGVCQX">East Asian</a> languages were numbered to match similar IBM code pages and are used as both ANSI and OEM code pages; these are covered in following sections. </p> <table><tbody><tr><th>ID</th><th>Description</th><th>Relationship to ISO 8859 or other established encodings</th></tr><tr><td><a href="/facts/Windows-1250/38Vsc5tW">1250</a><a class="footnote-ref" id="fnref:9" href="#fn:9"><sup>9</sup></a><a class="footnote-ref" id="fnref:10" href="#fn:10"><sup>10</sup></a></td><td><a href="/facts/Latin_script/7EWeJjUV">Latin</a> 2 / <a href="/facts/Central_Europe/VdxzSbJz">Central European</a></td><td>Similar to <a href="/facts/ISO-8859-2/rIjCMEr3">ISO-8859-2</a> but moves several characters, including multiple letters.</td></tr><tr><td><a href="/facts/Windows-1251/mb3epF8S">1251</a><a class="footnote-ref" id="fnref:11" href="#fn:11"><sup>11</sup></a><a class="footnote-ref" id="fnref:12" href="#fn:12"><sup>12</sup></a></td><td><a href="/facts/Cyrillic_script/0btN3oWC">Cyrillic</a></td><td>Incompatible with both <a href="/facts/ISO-8859-5/RCKfCDGm">ISO-8859-5</a> and <a href="/facts/KOI-8/EeAoW6UL">KOI-8</a>.</td></tr><tr><td><a href="/facts/Windows-1252/eyM337y0">1252</a><a class="footnote-ref" id="fnref:13" href="#fn:13"><sup>13</sup></a><a class="footnote-ref" id="fnref:14" href="#fn:14"><sup>14</sup></a></td><td>Latin 1 / <a href="/facts/Western_Europe/YmWlV59w">Western European</a></td><td>Superset of <a href="/facts/ISO-8859-1/xPNVSEE6">ISO-8859-1</a> (without C1 controls). Letter repertoire accordingly similar to <a href="/facts/Code_page_850/D7wzDcLh">CP850</a>.</td></tr><tr><td><a href="/facts/Windows-1253/V0muu2fn">1253</a><a class="footnote-ref" id="fnref:15" href="#fn:15"><sup>15</sup></a><a class="footnote-ref" id="fnref:16" href="#fn:16"><sup>16</sup></a></td><td><a href="/facts/Greek_alphabet/1cHwB8Dg">Greek</a></td><td>Similar to <a href="/facts/ISO_8859-7/8IwLrLBN">ISO 8859-7</a> but moves several characters, including a letter.</td></tr><tr><td><a href="/facts/Windows-1254/P1QgI5w9">1254</a><a class="footnote-ref" id="fnref:17" href="#fn:17"><sup>17</sup></a><a class="footnote-ref" id="fnref:18" href="#fn:18"><sup>18</sup></a></td><td><a href="/facts/Turkish_alphabet/Skpn0bkK">Turkish</a></td><td>Superset of <a href="/facts/ISO_8859-9/j80xPurz">ISO 8859-9</a> (without C1 controls).</td></tr><tr><td><a href="/facts/Windows-1255/hnux8P8v">1255</a><a class="footnote-ref" id="fnref:19" href="#fn:19"><sup>19</sup></a><a class="footnote-ref" id="fnref:20" href="#fn:20"><sup>20</sup></a></td><td><a href="/facts/Hebrew_alphabet/qQStmr5u">Hebrew</a></td><td>Almost a superset of <a href="/facts/ISO_8859-8/2rcVasJh">ISO 8859-8</a>, but with two incompatible punctuation changes.</td></tr><tr><td><a href="/facts/Windows-1256/5W8bKwCN">1256</a><a class="footnote-ref" id="fnref:21" href="#fn:21"><sup>21</sup></a><a class="footnote-ref" id="fnref:22" href="#fn:22"><sup>22</sup></a></td><td><a href="/facts/Arabic_alphabet/hCA1a0xq">Arabic</a></td><td>Not compatible with <a href="/facts/ISO_8859-6/Hvk7KxTc">ISO 8859-6</a>; rather, OEM Code page 708 is an <a href="/facts/ISO_8859-6/Hvk7KxTc">ISO 8859-6</a> (ASMO 708) superset.</td></tr><tr><td><a href="/facts/Windows-1257/D7r331c9">1257</a><a class="footnote-ref" id="fnref:23" href="#fn:23"><sup>23</sup></a><a class="footnote-ref" id="fnref:24" href="#fn:24"><sup>24</sup></a></td><td><a href="/facts/Baltic_languages/Jmj2ckcI">Baltic</a></td><td>Not <a href="/facts/ISO_8859-4/eGK3wSdV">ISO 8859-4</a>; the later <a href="/facts/ISO_8859-13/jAHecGku">ISO 8859-13</a> is closely related, but with some differences in available punctuation.</td></tr><tr><td><a href="/facts/Windows-1258/caESqxDn">1258</a><a class="footnote-ref" id="fnref:25" href="#fn:25"><sup>25</sup></a><a class="footnote-ref" id="fnref:26" href="#fn:26"><sup>26</sup></a></td><td><a href="/facts/Vietnamese_alphabet/NyAkHElo">Vietnamese</a> (also OEM)</td><td>Not related to <a href="/facts/VSCII/tRjYlJbJ">VSCII</a> or <a href="/facts/VISCII/vWUwST36">VISCII</a>, uses fewer base characters with combining diacritics.</td></tr></tbody></table> <h3>DOS code pages</h3> <p>These are also ASCII-based. Most of these are included for use as OEM code pages; code page 874 is also used as an ANSI code page. </p> <ul><li><a href="/facts/Code_page_437/jx27vCbb">437</a> – IBM PC US, 8-bit <a href="/facts/SBCS/YGqTskfH">SBCS</a> <a href="/facts/Extended_ASCII/Agfdo1R0">extended ASCII</a>.<a class="footnote-ref" id="fnref:27" href="#fn:27"><sup>27</sup></a> Known as OEM-US, the encoding of the primary built-in font of VGA graphics cards.</li> <li>708 – Arabic, extended <a href="/facts/ISO_8859-6/Hvk7KxTc">ISO 8859-6</a> (ASMO 708)</li> <li>720 – Arabic, retaining box drawing characters in their usual locations</li> <li><a href="/facts/Code_page_737/oURIoCpP">737</a> – "MS-DOS Greek". Retains all box drawing characters. More popular than 869.</li> <li>775 – "MS-DOS Baltic Rim"</li> <li><a href="/facts/Code_page_850/D7wzDcLh">850</a> – "MS-DOS Latin 1". Full (re-arranged) repertoire of <a href="/facts/ISO_8859-1/xPNVSEE6">ISO 8859-1</a>.</li> <li>852 – "MS-DOS Latin 2"</li> <li>855 – "MS-DOS Cyrillic". Mainly used for <a href="/facts/South_Slavic_languages/0p4fKXXE">South Slavic languages</a>. Includes (re-arranged) repertoire of <a href="/facts/ISO-8859-5/RCKfCDGm">ISO-8859-5</a>. Not to be confused with cp866.</li> <li>857 – "MS-DOS Turkish"</li> <li><a href="/facts/Code_page_858/E2I1PBRE">858</a> – Western European with euro sign</li> <li>860 – "MS-DOS Portuguese"</li> <li><a href="/facts/Code_page_861/KmBqza7B">861</a> – "MS-DOS Icelandic"</li> <li><a href="/facts/Code_page_862/XwtoMWcI">862</a> – "MS-DOS Hebrew"</li> <li><a href="/facts/Code_page_863/Ctwv5uwe">863</a> – "MS-DOS French Canada"</li> <li><a href="/facts/Code_page_864/XxAnete0">864</a> – Arabic</li> <li><a href="/facts/Code_page_865/sczqv0DL">865</a> – "MS-DOS Nordic"</li> <li><a href="/facts/Code_page_866/EVzFRhhH">866</a> – "MS-DOS Cyrillic Russian", cp866. Sole purely OEM code page (rather than ANSI or both) included as a legacy encoding in WHATWG Encoding Standard for <a href="/facts/HTML5/HBAxEAr6">HTML5</a>.</li> <li><a href="/facts/Code_page_869/taEmNoAT">869</a> – "MS-DOS Greek 2", IBM869. Full (re-arranged) repertoire of <a href="/facts/ISO_8859-7/8IwLrLBN">ISO 8859-7</a>.</li> <li><a href="/facts/Windows-874/sQasldhr">874</a> – <a href="/facts/Thai_alphabet/uxnpJWg9">Thai</a>, also used as the ANSI code page, extends <a href="/facts/ISO_8859-11/sQasldhr">ISO 8859-11</a> (and therefore <a href="/facts/TIS-620/cHbgLjlf">TIS-620</a>) with a few additional characters from Windows-1252. Corresponds to IBM code page 1162 (IBM-874 is similar but has different extensions).</li></ul> <h3>East Asian multi-byte code pages</h3> <p>These often differ from the IBM code pages of the same number: code pages 932, 949 and 950 only partly match the IBM code pages of the same number, while the number 936 was used by IBM for another Simplified Chinese encoding which is now deprecated and Windows-951, as part of a <a href="/facts/Kludge/QGa685tH">kludge</a>, is unrelated to IBM-951. IBM equivalent code pages are given in the second column. Code pages 932, 936, 949 and 950/951 are used as both ANSI and OEM code pages on the locales in question. </p> <table><tbody><tr><th>ID</th><th>Language</th><th>Encoding</th><th>IBM Equivalent</th><th>Difference from IBM CCSID of same number</th><th>Use</th></tr><tr><td><a href="/facts/Code_page_932_(Microsoft_Windows)/XcwTNKIc">932</a></td><td><a href="/facts/Japanese_writing_system/0Jt6VooH">Japanese</a></td><td><a href="/facts/Shift_JIS/9j7nb3fr">Shift JIS</a> (Microsoft variant)</td><td>943<a class="footnote-ref" id="fnref:28" href="#fn:28"><sup>28</sup></a></td><td><a href="/facts/IBM-932/r4L2zMhY">IBM-932</a> is also Shift JIS, has fewer extensions (but those extensions it has are in common), and swaps some <a href="/facts/Variant_Chinese_characters/uPAYDJES">variant Chinese characters</a> (<i>itaiji</i>) for interoperability with earlier editions of <a href="/facts/JIS_X_0208/c74FolNC">JIS C 6226</a>.</td><td>ANSI/OEM (Japan)</td></tr><tr><td><a href="/facts/Code_page_936_(Microsoft_Windows)/NGPrW1TE">936</a></td><td><a href="/facts/Simplified_Chinese_characters/UcAD6xXs">Chinese (simplified)</a></td><td><a href="/facts/GBK_(character_encoding)/Pq0qUQzf">GBK</a></td><td>1386</td><td><a href="/facts/Code_page_936_(IBM)/W4uGkSug">IBM-936</a> is a different Simplified Chinese encoding with a different encoding method, which has been deprecated since 1993.</td><td>ANSI/OEM (PRC, Singapore)</td></tr><tr><td><a href="/facts/Windows-949/a4JIr4EW">949</a></td><td><a href="/facts/Hangul/prUQxzfJ">Korean</a></td><td><a href="/facts/Unified_Hangul_Code/a4JIr4EW">Unified Hangul Code</a></td><td>1363</td><td><a href="/facts/Code_page_949_(IBM)/emLwFFpC">IBM-949</a> is also an <a href="/facts/EUC-KR/eMDCPy2B">EUC-KR</a> superset, but with different (colliding) extensions.</td><td>ANSI/OEM (Republic of Korea)</td></tr><tr><td><a href="/facts/Code_page_950/vUDxwSxs">950</a></td><td><a href="/facts/Traditional_Chinese_characters/bBFLkuz7">Chinese (traditional)</a></td><td><a href="/facts/Big5/YNmIgdHR">Big5</a> (Microsoft variant)</td><td>1373<a class="footnote-ref" id="fnref:29" href="#fn:29"><sup>29</sup></a></td><td>IBM-950 is also Big5, but includes a different subset of the ETEN extensions, adds further extensions with an expanded trail byte range, and lacks the Euro.</td><td>ANSI/OEM (Taiwan, Hong Kong)</td></tr><tr><td><a href="/facts/Hong_Kong_Supplementary_Character_Set/jcdnsEYC">951</a></td><td>Chinese (traditional) including <a href="/facts/Cantonese/y5UhgScP">Cantonese</a></td><td><a href="/facts/Hong_Kong_Supplementary_Character_Set/jcdnsEYC">Big5-HKSCS</a> (2001 ed.)</td><td>5471<a class="footnote-ref" id="fnref:30" href="#fn:30"><sup>30</sup></a></td><td>IBM-951 is the double-byte plane from IBM-949 (see above), and unrelated to Microsoft's internal use of the number 951.</td><td>ANSI/OEM (Hong Kong, 98/NT4/2000/XP with HKSCS patch)</td></tr></tbody></table> <p>A few further multiple-byte code pages are supported for decoding or encoding using operating system libraries, but not used as either sort of system encoding in any locale. </p> <table><tbody><tr><th>ID</th><th>IBM Equivalent</th><th>Language</th><th>Encoding</th><th>Use</th></tr><tr><td><a href="/facts/Code_page_1361/3qaRgLx3">1361</a></td><td>-</td><td>Korean</td><td><a href="/facts/Johab/3qaRgLx3">Johab</a> (KS C 5601-1992 annex 3)</td><td>Conversion</td></tr><tr><td>20000</td><td>-</td><td>Chinese (traditional)</td><td>An encoding of <a href="/facts/CNS_11643/YQnNe9hy">CNS 11643</a></td><td>Conversion</td></tr><tr><td>20001</td><td>-</td><td>Chinese (traditional)</td><td>TCA</td><td>Conversion</td></tr><tr><td>20002</td><td>-</td><td>Chinese (traditional)</td><td>Big5 (ETEN variant)</td><td>Conversion</td></tr><tr><td>20003</td><td>938</td><td>Chinese (traditional)</td><td><a href="/facts/IBM_5550/RVTgSfPy">IBM 5550</a></td><td>Conversion</td></tr><tr><td>20004</td><td>-</td><td>Chinese (traditional)</td><td>Teletext</td><td>Conversion</td></tr><tr><td>20005</td><td>-</td><td>Chinese (traditional)</td><td>Wang</td><td>Conversion</td></tr><tr><td><a href="/facts/Code_page_20932/eMDCPy2B">20932</a></td><td>954 (roughly)</td><td>Japanese</td><td><a href="/facts/EUC-JP/eMDCPy2B">EUC-JP</a></td><td>Conversion</td></tr><tr><td>20936</td><td>5479</td><td>Chinese (simplified)</td><td><a href="/facts/GB_2312/5bhsAQE5">GB 2312</a></td><td>Conversion</td></tr><tr><td>20949, 51949</td><td>970</td><td>Korean</td><td>Wansung (8-bit with ASCII, i.e. <a href="/facts/EUC-KR/eMDCPy2B">EUC-KR</a>)<a class="footnote-ref" id="fnref:31" href="#fn:31"><sup>31</sup></a></td><td>Conversion</td></tr></tbody></table> <h3>EBCDIC code pages</h3> <table><tbody><tr><th>ID</th><th>IBM Equivalent</th><th>Description</th></tr><tr><td colspan="2">37</td><td><a href="/facts/Country_Extended_Code_Page/qAhmvgj0">Country Extended Code Page</a> for US, Canada, Netherlands, Portugal, Brazil, Australia, New Zealand<a class="footnote-ref" id="fnref:32" href="#fn:32"><sup>32</sup></a></td></tr><tr><td colspan="2">500</td><td>Country Extended Code Page for Belgium, Canada and Switzerland</td></tr><tr><td colspan="2">870</td><td>EBCDIC Latin-2</td></tr><tr><td colspan="2">875</td><td>EBCDIC Greek</td></tr><tr><td colspan="2">1026</td><td>EBCDIC Latin-5 (Turkish)</td></tr><tr><td colspan="2">1047</td><td>Country Extended Code Page for Open Systems (<a href="/facts/POSIX/mQkSt234">POSIX</a>)</td></tr><tr><td colspan="2">1140</td><td>Euro-sign Country Extended Code Page for US, Canada, Netherlands, Portugal, Brazil, Australia, New Zealand</td></tr><tr><td colspan="2">1141</td><td>Euro-sign Country Extended Code Page for Austria and Germany</td></tr><tr><td colspan="2">1142</td><td>Euro-sign Country Extended Code Page for Denmark and Norway</td></tr><tr><td colspan="2">1143</td><td>Euro-sign Country Extended Code Page for Finland and Sweden</td></tr><tr><td colspan="2">1144</td><td>Euro-sign Country Extended Code Page for Italy</td></tr><tr><td colspan="2">1145</td><td>Euro-sign Country Extended Code Page for Spain and Latin America</td></tr><tr><td colspan="2">1146</td><td>Euro-sign Country Extended Code Page for UK</td></tr><tr><td colspan="2">1147</td><td>Euro-sign Country Extended Code Page for France</td></tr><tr><td colspan="2">1148</td><td>Euro-sign Country Extended Code Page for Belgium, Canada and Switzerland</td></tr><tr><td colspan="2">1149</td><td>Euro-sign Country Extended Code Page for Iceland</td></tr><tr><td>20273</td><td>273</td><td>Country Extended Code Page for Germany</td></tr><tr><td>20277</td><td>277</td><td>Country Extended Code Page for Denmark/Norway</td></tr><tr><td>20278</td><td>278</td><td>Country Extended Code Page for Finland/Sweden</td></tr><tr><td>20280</td><td>280</td><td>Country Extended Code Page for Italy</td></tr><tr><td>20284</td><td>284</td><td>Country Extended Code Page for Latin America/Spain</td></tr><tr><td>20285</td><td>285</td><td>Country Extended Code Page for United Kingdom</td></tr><tr><td><a href="/facts/Code_page_20290/AgxeJdoI">20290</a></td><td>290</td><td><a href="/facts/Japanese_language_in_EBCDIC/AgxeJdoI">Japanese Katakana EBCDIC</a></td></tr><tr><td>20297</td><td>297</td><td>Country Extended Code Page for France</td></tr><tr><td>20420</td><td>420</td><td>EBCDIC Arabic</td></tr><tr><td>20423</td><td>423</td><td>EBCDIC Greek with Extended Latin</td></tr><tr><td>20424</td><td>-</td><td>x-EBCDIC-KoreanExtended</td></tr><tr><td>20833</td><td>833</td><td>Korean EBCDIC for N-Byte Hangul</td></tr><tr><td>20838</td><td>838</td><td>EBCDIC Thai</td></tr><tr><td>20871</td><td>871</td><td>Country Extended Code Page for Iceland</td></tr><tr><td><a href="/facts/Code_page_20880/8fuylzNa">20880</a></td><td>880</td><td>EBCDIC Cyrillic (<a href="/facts/DKOI/8fuylzNa">DKOI</a>)</td></tr><tr><td>20905</td><td>905</td><td>EBCDIC Latin-3 (Maltese, Esperanto and Turkish)</td></tr><tr><td>20924</td><td>924</td><td>EBCDIC Latin-9 (including Euro sign) for Open Systems (<a href="/facts/POSIX/mQkSt234">POSIX</a>)</td></tr><tr><td>21025</td><td>1025</td><td>EBCDIC Cyrillic (DKOI) with <a href="/facts/Section_sign/fdPt1SH6">section sign</a></td></tr><tr><td>21027</td><td>(1027)</td><td>Japanese EBCDIC (an incomplete implementation of IBM code page 1027,<a class="footnote-ref" id="fnref:33" href="#fn:33"><sup>33</sup></a> now deprecated)<a class="footnote-ref" id="fnref:34" href="#fn:34"><sup>34</sup></a></td></tr></tbody></table> <h3>Unicode-related code pages</h3> <table><tbody><tr><th>ID</th><th>IBM Equivalent</th><th>Description</th></tr><tr><td><a href="/facts/Code_page_1200/ofSmbCem">1200</a></td><td>1202, 1203</td><td><a href="/facts/Unicode/DDu3MfPV">Unicode</a> (BMP of ISO 10646, <a href="/facts/UTF-16LE/ofSmbCem">UTF-16LE</a>). Available only to <a href="/facts/Common_Language_Infrastructure/mu44u01J">managed applications</a>.<a class="footnote-ref" id="fnref:35" href="#fn:35"><sup>35</sup></a></td></tr><tr><td><a href="/facts/Code_page_1201/ofSmbCem">1201</a></td><td>1200, 1201</td><td><a href="/facts/Unicode/DDu3MfPV">Unicode</a> (<a href="/facts/UTF-16BE/ofSmbCem">UTF-16BE</a>). Available only to managed applications.<a class="footnote-ref" id="fnref:36" href="#fn:36"><sup>36</sup></a></td></tr><tr><td><a href="/facts/Code_page_12000/YF6Me5na">12000</a></td><td>1234, 1235</td><td><a href="/facts/UTF-32/YF6Me5na">UTF-32</a>. Available only to managed applications.<a class="footnote-ref" id="fnref:37" href="#fn:37"><sup>37</sup></a></td></tr><tr><td><a href="/facts/Code_page_12001/YF6Me5na">12001</a></td><td>1232, 1233</td><td><a href="/facts/UTF-32/YF6Me5na">UTF-32</a>. Big-endian. Available only to managed applications.<a class="footnote-ref" id="fnref:38" href="#fn:38"><sup>38</sup></a></td></tr><tr><td><a href="/facts/Code_page_65000/hgtoda30">65000</a></td><td>-</td><td><a href="/facts/Unicode/DDu3MfPV">Unicode</a> (<a href="/facts/UTF-7/hgtoda30">UTF-7</a>)</td></tr><tr><td><a href="/facts/Code_page_65001/xlaVHSyf">65001</a></td><td>1208, 1209</td><td><a href="/facts/Unicode/DDu3MfPV">Unicode</a> (<a href="/facts/UTF-8/xlaVHSyf">UTF-8</a>)</td></tr></tbody></table> <h3>Macintosh compatibility code pages</h3> <table><tbody><tr><th>ID</th><th>IBM Equivalent</th><th>Description</th></tr><tr><td><a href="/facts/Code_page_10000/hzrt4zC5">10000</a></td><td>1275</td><td>Apple Macintosh Roman</td></tr><tr><td><a href="/facts/Code_page_10001/9j7nb3fr">10001</a></td><td>-</td><td>Apple Macintosh Japanese</td></tr><tr><td>10002</td><td>-</td><td>Apple Macintosh Chinese (traditional) (BIG-5)</td></tr><tr><td>10003</td><td>-</td><td>Apple Macintosh Korean</td></tr><tr><td><a href="/facts/Code_page_10004/0fxBU7aw">10004</a></td><td>-</td><td>Apple Macintosh Arabic</td></tr><tr><td>10005</td><td>-</td><td>Apple Macintosh Hebrew</td></tr><tr><td><a href="/facts/Code_page_10006/jrxLBFxW">10006</a></td><td>1280</td><td>Apple Macintosh Greek</td></tr><tr><td><a href="/facts/Code_page_10007/XcKtBYAu">10007</a></td><td>1283</td><td>Apple Macintosh Cyrillic</td></tr><tr><td>10008</td><td>-</td><td>Apple Macintosh Chinese (simplified) (GB 2312)</td></tr><tr><td><a href="/facts/Code_page_10010/qSrL0jJc">10010</a></td><td>1285</td><td>Apple Macintosh Romanian</td></tr><tr><td><a href="/facts/Code_page_10017/WGsFnIKX">10017</a></td><td>-</td><td>Apple Macintosh Ukrainian</td></tr><tr><td>10021</td><td>-</td><td>Apple Macintosh Thai</td></tr><tr><td><a href="/facts/Code_page_10029/4lTEwpAt">10029</a></td><td>1282</td><td>Apple Macintosh Roman II / Central Europe</td></tr><tr><td><a href="/facts/Code_page_10079/ITm5u8qg">10079</a></td><td>1286</td><td>Apple Macintosh Icelandic</td></tr><tr><td><a href="/facts/Code_page_10081/YI8ef4ro">10081</a></td><td>1281</td><td>Apple Macintosh Turkish</td></tr><tr><td><a href="/facts/Code_page_10082/P6l2HGBf">10082</a></td><td>1284</td><td>Apple Macintosh Croatian</td></tr></tbody></table> <h3>ISO 8859 code pages</h3> <table><tbody><tr><th>ID</th><th>IBM Equivalent</th><th>Description</th></tr><tr><td><a href="/facts/Code_page_28591/xPNVSEE6">28591</a></td><td>819, 5100</td><td><a href="/facts/ISO-8859-1/xPNVSEE6">ISO-8859-1</a> – Latin-1</td></tr><tr><td><a href="/facts/Code_page_28592/rIjCMEr3">28592</a></td><td>912</td><td><a href="/facts/ISO-8859-2/rIjCMEr3">ISO-8859-2</a> – Latin-2</td></tr><tr><td><a href="/facts/Code_page_28593/jEPqcuqr">28593</a></td><td>913</td><td><a href="/facts/ISO-8859-3/jEPqcuqr">ISO-8859-3</a> – Latin-3 or South European</td></tr><tr><td><a href="/facts/Code_page_28594/eGK3wSdV">28594</a></td><td>914</td><td><a href="/facts/ISO-8859-4/eGK3wSdV">ISO-8859-4</a> – Latin-4 or North European</td></tr><tr><td><a href="/facts/Code_page_28595/RCKfCDGm">28595</a></td><td>915</td><td><a href="/facts/ISO-8859-5/RCKfCDGm">ISO-8859-5</a> – Latin/Cyrillic</td></tr><tr><td><a href="/facts/Code_page_28596/Hvk7KxTc">28596</a></td><td>-</td><td><a href="/facts/ISO-8859-6/Hvk7KxTc">ISO-8859-6</a> – Latin/Arabic</td></tr><tr><td><a href="/facts/Code_page_28597/8IwLrLBN">28597</a></td><td>813, 4909, 9005</td><td><a href="/facts/ISO-8859-7/8IwLrLBN">ISO-8859-7</a> – Latin/Greek (1987 edition, i.e. without <a href="/facts/Euro_sign/boK32Hs4">euro sign</a>, <a href="/facts/Modern_drachma/T3JxHhEV">drachma sign</a> or <a href="/facts/Iota_subscript/C14ngetJ">iota subscript</a>)<a class="footnote-ref" id="fnref:39" href="#fn:39"><sup>39</sup></a></td></tr><tr><td><a href="/facts/Code_page_28598/2rcVasJh">28598</a></td><td>-</td><td><a href="/facts/ISO-8859-8/2rcVasJh">ISO-8859-8</a> – Latin/Hebrew (visual order; 1988 edition, i.e. without <a href="/facts/Left-to-right_mark/LG9raAa1">LRM</a> and <a href="/facts/Right-to-left_mark/ysqPgqgI">RLM</a>)<a class="footnote-ref" id="fnref:40" href="#fn:40"><sup>40</sup></a></td></tr><tr><td><a href="/facts/Code_page_28599/j80xPurz">28599</a></td><td>920</td><td><a href="/facts/ISO-8859-9/j80xPurz">ISO-8859-9</a> – Latin-5 or Turkish</td></tr><tr><td><a href="/facts/Code_page_28600/1Yb6jw9m">28600</a></td><td>919</td><td><a href="/facts/ISO-8859-10/1Yb6jw9m">ISO-8859-10</a> – Latin-6 or Nordic</td></tr><tr><td><a href="/facts/Code_page_28601/sQasldhr">28601</a></td><td>-</td><td><a href="/facts/ISO-8859-11/sQasldhr">ISO-8859-11</a> – Latin/Thai</td></tr><tr><td><a href="/facts/Code_page_28602/UGgyesWS">28602</a></td><td>-</td><td><a href="/facts/ISO-8859-12/UGgyesWS">ISO-8859-12</a> – <i>reserved for Latin/Devanagari but abandoned</i> (not supported)</td></tr><tr><td><a href="/facts/Code_page_28603/jAHecGku">28603</a></td><td>921</td><td><a href="/facts/ISO-8859-13/jAHecGku">ISO-8859-13</a> – Latin-7 or Baltic Rim</td></tr><tr><td><a href="/facts/Code_page_28604/C4j8k1L9">28604</a></td><td>-</td><td><a href="/facts/ISO-8859-14/C4j8k1L9">ISO-8859-14</a> – Latin-8 or Celtic</td></tr><tr><td><a href="/facts/Code_page_28605/1H1fDIBk">28605</a></td><td>923</td><td><a href="/facts/ISO-8859-15/1H1fDIBk">ISO-8859-15</a> – Latin-9</td></tr><tr><td><a href="/facts/Code_page_28606/jvJjVHnJ">28606</a></td><td>-</td><td><a href="/facts/ISO-8859-16/jvJjVHnJ">ISO-8859-16</a> – Latin-10 or South-Eastern European</td></tr><tr><td><a href="/facts/Code_page_38596/Hvk7KxTc">38596</a></td><td>1089</td><td><a href="/facts/ISO-8859-6/Hvk7KxTc">ISO-8859-6-I</a> – Latin/Arabic (logical bidirectional order)</td></tr><tr><td><a href="/facts/Code_page_38598/2rcVasJh">38598</a></td><td>916, 5012</td><td><a href="/facts/ISO-8859-8-I/WwvnHlNj">ISO-8859-8-I</a> – Latin/Hebrew (logical bidirectional order; 1988 edition, i.e. without <a href="/facts/Left-to-right_mark/LG9raAa1">LRM</a> and <a href="/facts/Right-to-left_mark/ysqPgqgI">RLM</a>)<a class="footnote-ref" id="fnref:41" href="#fn:41"><sup>41</sup></a></td></tr></tbody></table> <h3>ITU-T code pages</h3> <table><tbody><tr><th>ID</th><th>IBM Equivalent</th><th>Description</th></tr><tr><td><a href="/facts/Code_page_20105/LG7gcLmh">20105</a></td><td>1009</td><td>7-bit <a href="/facts/ITU_T.50/Jf9BNYfs">IA5</a> <a href="/facts/ISO-646-IRV/7CdXUnTs">IRV</a> (Western European)<a class="footnote-ref" id="fnref:42" href="#fn:42"><sup>42</sup></a><a class="footnote-ref" id="fnref:43" href="#fn:43"><sup>43</sup></a><a class="footnote-ref" id="fnref:44" href="#fn:44"><sup>44</sup></a></td></tr><tr><td><a href="/facts/Code_page_20106/2jHwlz9S">20106</a></td><td>1011</td><td>7-bit <a href="/facts/ITU_T.50/Jf9BNYfs">IA5</a> German (DIN 66003)<a class="footnote-ref" id="fnref:45" href="#fn:45"><sup>45</sup></a><a class="footnote-ref" id="fnref:46" href="#fn:46"><sup>46</sup></a><a class="footnote-ref" id="fnref:47" href="#fn:47"><sup>47</sup></a></td></tr><tr><td>20107</td><td>1018</td><td>7-bit <a href="/facts/ITU_T.50/Jf9BNYfs">IA5</a> Swedish (SEN 850200 C)<a class="footnote-ref" id="fnref:48" href="#fn:48"><sup>48</sup></a><a class="footnote-ref" id="fnref:49" href="#fn:49"><sup>49</sup></a><a class="footnote-ref" id="fnref:50" href="#fn:50"><sup>50</sup></a></td></tr><tr><td>20108</td><td>1016</td><td>7-bit <a href="/facts/ITU_T.50/Jf9BNYfs">IA5</a> Norwegian (NS 4551-2)<a class="footnote-ref" id="fnref:51" href="#fn:51"><sup>51</sup></a><a class="footnote-ref" id="fnref:52" href="#fn:52"><sup>52</sup></a><a class="footnote-ref" id="fnref:53" href="#fn:53"><sup>53</sup></a></td></tr><tr><td><a href="/facts/Code_page_20127/vGUI33Qu">20127</a></td><td>367</td><td>7-bit <a href="/facts/ASCII/vGUI33Qu">ASCII</a><a class="footnote-ref" id="fnref:54" href="#fn:54"><sup>54</sup></a><a class="footnote-ref" id="fnref:55" href="#fn:55"><sup>55</sup></a><a class="footnote-ref" id="fnref:56" href="#fn:56"><sup>56</sup></a></td></tr><tr><td><a href="/facts/Code_page_20261/lCXsLsnF">20261</a></td><td>1036</td><td>T.61 (T.61-8bit)</td></tr><tr><td><a href="/facts/Code_page_20269/rLAe7ITo">20269</a></td><td>?</td><td>ISO-6937</td></tr></tbody></table> <h3>KOI8 code pages</h3> <table><tbody><tr><th>ID</th><th>IBM Equivalent</th><th>Description</th></tr><tr><td><a href="/facts/Code_page_20866/YA7j845v">20866</a></td><td>878</td><td>Russian – KOI8-R</td></tr><tr><td><a href="/facts/Code_page_21866/hkgHxdlx">21866</a></td><td>1167, 1168</td><td>Ukrainian – KOI8-U (or <a href="/facts/KOI8-RU/SSKYjFvu">KOI8-RU</a> in some versions)<a class="footnote-ref" id="fnref:57" href="#fn:57"><sup>57</sup></a></td></tr></tbody></table> <h2 id="problems-arising-from-the-use-of-code-pages">Problems arising from the use of code pages</h2> <p>Microsoft strongly recommends using Unicode in modern applications, but many applications or data files still depend on the legacy code pages. </p> <ul><li>Programs need to know what code page to use in order to display the contents of (pre-Unicode) files correctly. If a program uses the wrong code page it may show text as <a href="/facts/Mojibake/ca2k33dL">mojibake</a>.</li> <li>The code page in use may differ between machines, so (pre-Unicode) files created on one machine may be unreadable on another.</li> <li>Data is often improperly tagged with the code page, or not tagged at all, making determination of the correct code page to read the data difficult.</li> <li>These Microsoft code pages differ to various degrees from some of the standards and other vendors' implementations. This isn't a Microsoft issue <i>per se</i>, as it happens to all vendors, but the lack of consistency makes interoperability with other systems unreliable in some cases.</li> <li>The use of code pages limits the set of characters that may be used.</li> <li>Characters expressed in an unsupported code page may be converted to question marks (?) or other <a href="/facts/Replacement_character/FaU4XUT2">replacement characters</a>, or to a simpler version (such as removing accents from a letter). In either case, the original character may be lost.</li></ul> <h2 id="see-also">See also</h2> <ul><li>AppLocale – a utility to run non-Unicode (code page-based) applications in a locale of the user's choice.</li></ul> <h2 id="external-links">External links</h2> <ul><li><a href="https://web.archive.org/web/20171015144140/https://www.microsoft.com/resources/msdn/goglobal/default.mspx">National Language Support (NLS) API Reference</a>. Table showing ANSI and OEM codepages per language (from web-archive since Microsoft removed the original page)</li> <li><a href="https://www.iana.org/assignments/charset-reg">IANA Charset Name Registrations</a></li> <li><a href="https://www.unicode.org/Public/MAPPINGS/VENDORS/MICSFT/WINDOWS">Unicode mapping table for Windows code pages</a></li> <li><a href="https://www.unicode.org/Public/MAPPINGS/VENDORS/MICSFT/WindowsBestFit">Unicode mappings of windows code pages with "best fit"</a></li></ul> <h2 id="references">References</h2> <ol> <li id="fn:1"><p>"Unicode and character sets". Microsoft. 2023-06-13. Retrieved 2024-05-27. <a href="https://learn.microsoft.com/en-us/windows/win32/intl/unicode-and-character-sets" target="_blank">https://learn.microsoft.com/en-us/windows/win32/intl/unicode-and-character-sets</a> <a href="#fnref:1" class="footnote-back-ref">↩</a></p></li> <li id="fn:2"><p>"Code Pages". 2016-03-07. Archived from the original on 2016-03-07. Retrieved 2021-05-26. <a href="https://web.archive.org/web/20160307222735/https://msdn.microsoft.com/en-us/goglobal/bb964653.aspx" target="_blank">https://web.archive.org/web/20160307222735/https://msdn.microsoft.com/en-us/goglobal/bb964653.aspx</a> <a href="#fnref:2" class="footnote-back-ref">↩</a></p></li> <li id="fn:3"><p>"Glossary of Terms Used on this Site". December 8, 2018. Archived from the original on 2018-12-08. The term "ANSI" as used to signify Windows code pages is a historical reference, but is nowadays a misnomer that continues to persist in the Windows community. The source of this comes from the fact that the Windows code page 1252 was originally based on an ANSI draft—which became International Organization for Standardization (ISO) Standard 8859-1. "ANSI applications" are usually a reference to non-Unicode or code page–based applications. <a href="https://web.archive.org/web/20181208141313/https://msdn.microsoft.com/en-us/goglobal/bb964658.aspx#a" target="_blank">https://web.archive.org/web/20181208141313/https://msdn.microsoft.com/en-us/goglobal/bb964658.aspx#a</a> <a href="#fnref:3" class="footnote-back-ref">↩</a></p></li> <li id="fn:4"><p>"Glossary of Terms Used on this Site". December 8, 2018. Archived from the original on 2018-12-08. The term "ANSI" as used to signify Windows code pages is a historical reference, but is nowadays a misnomer that continues to persist in the Windows community. The source of this comes from the fact that the Windows code page 1252 was originally based on an ANSI draft—which became International Organization for Standardization (ISO) Standard 8859-1. 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