AWS Mainframe Modernization Service (Managed Runtime Environment experience) will no longer be open to new customers starting on November 7, 2025. If you would like to use the service, please sign up prior to November 7, 2025. For capabilities similar to AWS Mainframe Modernization Service (Managed Runtime Environment experience) explore AWS Mainframe Modernization Service (Self-Managed Experience). Existing customers can continue to use the service as normal. For more information, see AWS Mainframe Modernization availability change.

Supported source and target encodings in AWS Mainframe Modernization File Transfer

AWS Mainframe Modernization File Transfer supports various data set types and code page conversion options.

Mainframe data set types

AWS Mainframe Modernization File Transfer supports the following mainframe data set types:

Supported code pages

AWS Mainframe Modernization File Transfer supports the following code pages for data set conversion (from/to):

"BIG5" , "BIG5_HKSCS" , "CESU_8" , "EUC_JP" , "EUC_KR" , "GB18030" , "GB2312" , "GBK" , "IBM00858" , "IBM01140" , "IBM01141" , "IBM01142", "IBM01143" , "IBM01144" , "IBM01145" , "IBM01146" , "IBM01147" , "IBM01148" , "IBM01149" , "IBM037" , "IBM1026" , "IBM1047" , "IBM273" , "IBM277" , "IBM278" , "IBM280" , "IBM284" , "IBM285" , "IBM290" , "IBM297" , "IBM420" , "IBM424" , "IBM437" , "IBM500" , "IBM775" , "IBM850" , "IBM852" , "IBM855" , "IBM857" , "IBM860" , "IBM861" , "IBM862" , "IBM863" , "IBM864" , "IBM865" , "IBM866" , "IBM868" , "IBM869" , "IBM870" , "IBM871" , "IBM918" , "IBM_THAI" , "ISO_2022_CN" , "ISO_2022_JP" , "ISO_2022_JP_2" , "ISO_2022_KR" , "ISO_8859_1" , "ISO_8859_13" , "ISO_8859_15" , "ISO_8859_16" , "ISO_8859_2" , "ISO_8859_3" , "ISO_8859_4" , "ISO_8859_5" , "ISO_8859_6" , "ISO_8859_7" , "ISO_8859_8" , "ISO_8859_9" ,"JIS_X0201" , "JIS_X0212_1990" , "KOI8_R" , "KOI8_U" , "SHIFT_JIS" , "TIS_620" , "US_ASCII" , "UTF_16" , "UTF_16BE" , "UTF_16LE" , "UTF_32" , "UTF_32BE" , "UTF_32LE" , "UTF_8" , "WINDOWS_1250" , "WINDOWS_1251" , "WINDOWS_1252" , "WINDOWS_1253" ,"WINDOWS_1254" , "WINDOWS_1255" , "WINDOWS_1256" , "WINDOWS_1257" , "WINDOWS_1258" , "WINDOWS_31J" , "X_BIG5_HKSCS_2001" , "X_BIG5_SOLARIS" , "X_EUCJP_OPEN" , "X_EUC_JP_LINUX" , "X_EUC_TW" , "X_IBM1006" , "X_IBM1025" , "X_IBM1046" , "X_IBM1097" , "X_IBM1098" , "X_IBM1112" , "X_IBM1122" , "X_IBM1123" , "X_IBM1124" , "X_IBM1129" , "X_IBM1166" , "X_IBM1364" , "X_IBM1381" , "X_IBM1383" , "X_IBM29626C" , "X_IBM300" , "X_IBM33722" , "X_IBM737" , "X_IBM833" , "X_IBM834" , "X_IBM856" , "X_IBM874" , "X_IBM875" , "X_IBM921" , "X_IBM922" , "X_IBM930" , "X_IBM933" , "X_IBM935" , "X_IBM937" , "X_IBM939" , "X_IBM942" , "X_IBM942C" , "X_IBM943" , "X_IBM943C" , "X_IBM948" , "X_IBM949" , "X_IBM949C" , "X_IBM950" , "X_IBM964" , "X_IBM970" , "X_ISCII91" , "X_ISO_2022_CN_CNS" , "X_ISO_2022_CN_GB" , "X_ISO_8859_11" , "X_JIS0208" , "X_JISAUTODETECT" , "X_JOHAB", "X_MACARABIC" , "X_MACCENTRALEUROPE" , "X_MACCROATIAN" , "X_MACCYRILLIC" , "X_MACDINGBAT", "X_MACGREEK" , "X_MACHEBREW" , "X_MACICELAND" , "X_MACROMAN" , "X_MACROMANIA" , "X_MACSYMBOL" , "X_MACTHAI" , "X_MACTURKISH" , "X_MACUKRAINE" , "X_MS932_0213" , "X_MS950_HKSCS" , "X_MS950_HKSCS_XP" , "X_MSWIN_936" , "X_PCK" , "X_SJIS_0213" , "X_UTF_16LE_BOM" , "X_UTF_32BE_BOM" , "X_UTF_32LE_BOM" , "X_WINDOWS_50220" , "X_WINDOWS_50221" , "X_WINDOWS_874" , "X_WINDOWS_949" , "X_WINDOWS_950" , "X_WINDOWS_ISO2022j"