ASCII Codes

The table below gives you the codes for all 128 characters of the ASCII character set. Of the 128 characters, 33 are control characters (0-31, 127). The other 95 characters (32-126) are printable.

Table 1. Table with all 128 characters of the ASCII character set.
Character/Abbreviation	Decimal	Hexadecimal	Octal	Binary	Description
`NUL`	`0`	`00`	`000`	`000 0000`	Null character
`SOH`	`1`	`01`	`001`	`000 0001`	Start of Header
`STX`	`2`	`02`	`002`	`000 0010`	Start of Text
`ETX`	`3`	`03`	`003`	`000 0011`	End of Text
`EOT`	`4`	`04`	`004`	`000 0100`	End of Transmission
`ENQ`	`5`	`05`	`005`	`000 0101`	Enquiry
`ACK`	`6`	`06`	`006`	`000 0110`	Acknowledgment
`BEL`	`7`	`07`	`007`	`000 0111`	Bell
`BS`	`8`	`08`	`010`	`000 1000`	Backspace
`HT`	`9`	`09`	`011`	`000 1001`	Horizontal Tab
`LF`	`10`	`0A`	`012`	`000 1010`	Line feed
`VT`	`11`	`0B`	`013`	`000 1011`	Vertical Tab
`FF`	`12`	`0C`	`014`	`000 1100`	Form feed
`CR`	`13`	`0D`	`015`	`000 1101`	Carriage return
`SO`	`14`	`0E`	`016`	`000 1110`	Shift Out
`SI`	`15`	`0F`	`017`	`000 1111`	Shift In
`DLE`	`16`	`10`	`020`	`001 0000`	Data Link Escape
`DC1`	`17`	`11`	`021`	`001 0001`	Device Control 1 (often XON)
`DC2`	`18`	`12`	`022`	`001 0010`	Device Control 2
`DC3`	`19`	`13`	`023`	`001 0011`	Device Control 3 (often XOFF)
`DC4`	`20`	`14`	`024`	`001 0100`	Device Control 4
`NAK`	`21`	`15`	`025`	`001 0101`	Negative Acknowledgement
`SYN`	`22`	`16`	`026`	`001 0110`	Synchronous Idle
`ETB`	`23`	`17`	`027`	`001 0111`	End of Trans. Block
`CAN`	`24`	`18`	`030`	`001 1000`	Cancel
`EM`	`25`	`19`	`031`	`001 1001`	End of Medium
`SUB`	`26`	`1A`	`032`	`001 1010`	Substitute
`ESC`	`27`	`1B`	`033`	`001 1011`	Escape
`FS`	`28`	`1C`	`034`	`001 1100`	File Separator
`GS`	`29`	`1D`	`035`	`001 1101`	Group Separator
`RS`	`30`	`1E`	`036`	`001 1110`	Record Separator
`US`	`31`	`1F`	`037`	`001 1111`	Unit Separator
`SP`	`32`	`20`	`040`	`010 0000`
`!`	`33`	`21`	`041`	`010 0001`
`"`	`34`	`22`	`042`	`010 0010`
`#`	`35`	`23`	`043`	`010 0011`
`$`	`36`	`24`	`044`	`010 0100`
`%`	`37`	`25`	`045`	`010 0101`
`&`	`38`	`26`	`046`	`010 0110`
`'`	`39`	`27`	`047`	`010 0111`
`(`	`40`	`28`	`050`	`010 1000`
`)`	`41`	`29`	`051`	`010 1001`
`*`	`42`	`2A`	`052`	`010 1010`
`+`	`43`	`2B`	`053`	`010 1011`
`,`	`44`	`2C`	`054`	`010 1100`
`-`	`45`	`2D`	`055`	`010 1101`
`.`	`46`	`2E`	`056`	`010 1110`
`/`	`47`	`2F`	`057`	`010 1111`
`0`	`48`	`30`	`060`	`011 0000`
`1`	`49`	`31`	`061`	`011 0001`
`2`	`50`	`32`	`062`	`011 0010`
`3`	`51`	`33`	`063`	`011 0011`
`4`	`52`	`34`	`064`	`011 0100`
`5`	`53`	`35`	`065`	`011 0101`
`6`	`54`	`36`	`066`	`011 0110`
`7`	`55`	`37`	`067`	`011 0111`
`8`	`56`	`38`	`070`	`011 1000`
`9`	`57`	`39`	`071`	`011 1001`
`:`	`58`	`3A`	`072`	`011 1010`
`;`	`59`	`3B`	`073`	`011 1011`
`<`	`60`	`3C`	`074`	`011 1100`
`=`	`61`	`3D`	`075`	`011 1101`
`>`	`62`	`3E`	`076`	`011 1110`
`?`	`63`	`3F`	`077`	`011 1111`
`@`	`64`	`40`	`100`	`100 0000`
`A`	`65`	`41`	`101`	`100 0001`
`B`	`66`	`42`	`102`	`100 0010`
`C`	`67`	`43`	`103`	`100 0011`
`D`	`68`	`44`	`104`	`100 0100`
`E`	`69`	`45`	`105`	`100 0101`
`F`	`70`	`46`	`106`	`100 0110`
`G`	`71`	`47`	`107`	`100 0111`
`H`	`72`	`48`	`110`	`100 1000`
`I`	`73`	`49`	`111`	`100 1001`
`J`	`74`	`4A`	`112`	`100 1010`
`K`	`75`	`4B`	`113`	`100 1011`
`L`	`76`	`4C`	`114`	`100 1100`
`M`	`77`	`4D`	`115`	`100 1101`
`N`	`78`	`4E`	`116`	`100 1110`
`O`	`79`	`4F`	`117`	`100 1111`
`P`	`80`	`50`	`120`	`101 0000`
`Q`	`81`	`51`	`121`	`101 0001`
`R`	`82`	`52`	`122`	`101 0010`
`S`	`83`	`53`	`123`	`101 0011`
`T`	`84`	`54`	`124`	`101 0100`
`U`	`85`	`55`	`125`	`101 0101`
`V`	`86`	`56`	`126`	`101 0110`
`W`	`87`	`57`	`127`	`101 0111`
`X`	`88`	`58`	`130`	`101 1000`
`Y`	`89`	`59`	`131`	`101 1001`
`Z`	`90`	`5A`	`132`	`101 1010`
`[`	`91`	`5B`	`133`	`101 1011`
`\`	`92`	`5C`	`134`	`101 1100`
`]`	`93`	`5D`	`135`	`101 1101`
`^`	`94`	`5E`	`136`	`101 1110`
`_`	`95`	`5F`	`137`	`101 1111`
`	`96`	`60`	`140`	`110 0000`
`a`	`97`	`61`	`141`	`110 0001`
`b`	`98`	`62`	`142`	`110 0010`
`c`	`99`	`63`	`143`	`110 0011`
`d`	`100`	`64`	`144`	`110 0100`
`e`	`101`	`65`	`145`	`110 0101`
`f`	`102`	`66`	`146`	`110 0110`
`g`	`103`	`67`	`147`	`110 0111`
`h`	`104`	`68`	`150`	`110 1000`
`i`	`105`	`69`	`151`	`110 1001`
`j`	`106`	`6A`	`152`	`110 1010`
`k`	`107`	`6B`	`153`	`110 1011`
`l`	`108`	`6C`	`154`	`110 1100`
`m`	`109`	`6D`	`155`	`110 1101`
`n`	`110`	`6E`	`156`	`110 1110`
`o`	`111`	`6F`	`157`	`110 1111`
`p`	`112`	`70`	`160`	`111 0000`
`q`	`113`	`71`	`161`	`111 0001`
`r`	`114`	`72`	`162`	`111 0010`
`s`	`115`	`73`	`163`	`111 0011`
`t`	`116`	`74`	`164`	`111 0100`
`u`	`117`	`75`	`165`	`111 0101`
`v`	`118`	`76`	`166`	`111 0110`
`w`	`119`	`77`	`167`	`111 0111`
`x`	`120`	`78`	`170`	`111 1000`
`y`	`121`	`79`	`171`	`111 1001`
`z`	`122`	`7A`	`172`	`111 1010`
`{`	`123`	`7B`	`173`	`111 1011`
`\|`	`124`	`7C`	`174`	`111 1100`
`}`	`125`	`7D`	`175`	`111 1101`
`~`	`126`	`7E`	`176`	`111 1110`
`DEL`	`127`	`7F`	`177`	`111 1111`	Delete

Source: http://en.wikipedia.org/wiki/American_Standard_Code_for_Information_Interchange.