ASCII Code
The ASCII table, an abbreviation for American Standard Code for Information Interchange, utilizes a 7-bit character encoding system to represent 128 unique characters. These include both control and printable characters. The table is composed of 32 control characters (ranging from 0-31) used for text formatting management, and 96 printable characters (ranging from 32-127). The latter includes the English alphabet, digits, and common punctuation marks.
ASCII

ASCII control characters (character code 0-31)

The first 32 characters in the ASCII-table are unprintable control codes and are used to control peripherals such as printers.
DEC OCT HEX BIN Symbol HTML Number HTML Name Description
00000000000000� Null character
10010100000001 Start of Heading
20020200000010 Start of Text
30030300000011 End of Text
40040400000100 End of Transmission
50050500000101 Enquiry
60060600000110 Acknowledge
70070700000111 Bell, Alert
80100800001000 Backspace
90110900001001	 Horizontal Tab
100120A00001010
 Line Feed
110130B00001011 Vertical Tabulation
120140C00001100 Form Feed
130150D00001101
 Carriage Return
140160E00001110 Shift Out
150170F00001111 Shift In
160201000010000 Data Link Escape
170211100010001 Device Control One (XON)
180221200010010 Device Control Two
190231300010011 Device Control Three (XOFF)
200241400010100 Device Control Four
210251500010101 Negative Acknowledge
220261600010110 Synchronous Idle
230271700010111 End of Transmission Block
240301800011000 Cancel
250311900011001 End of medium
260321A00011010 Substitute
270331B00011011 Escape
280341C00011100 File Separator
290351D00011101 Group Separator
300361E00011110 Record Separator
310371F00011111 Unit Separator

ASCII printable characters (character code 32-127)

Codes 32-127 are common for all the different variations of the ASCII table, they are called printable characters, represent letters, digits, punctuation marks, and a few miscellaneous symbols. You will find almost every character on your keyboard. Character 127 represents the command DEL.
DEC OCT HEX BIN Symbol HTML Number HTML Name Description
320402000100000  Space
330412100100001!!!Exclamation mark
340422200100010"""Double quotes (or speech marks)
350432300100011###Number sign
360442400100100$$$Dollar
370452500100101%%%Per cent sign
380462600100110&&&Ampersand
390472700100111'''Single quote
400502800101000((&lparen;Open parenthesis (or open bracket)
410512900101001))&rparen;Close parenthesis (or close bracket)
420522A00101010***Asterisk
430532B00101011+++Plus
440542C00101100,,,Comma
450552D00101101-- Hyphen-minus
460562E00101110...Period, dot or full stop
470572F00101111///Slash or divide
48060300011000000 Zero
49061310011000111 One
50062320011001022 Two
51063330011001133 Three
52064340011010044 Four
53065350011010155 Five
54066360011011066 Six
55067370011011177 Seven
56070380011100088 Eight
57071390011100199 Nine
580723A00111010:::Colon
590733B00111011;&#59;;Semicolon
600743C00111100<&#60;&lt;Less than (or open angled bracket)
610753D00111101=&#61;&equals;Equals
620763E00111110>&#62;&gt;Greater than (or close angled bracket)
630773F00111111?&#63;&quest;Question mark
641004001000000@&#64;&commat;At sign
651014101000001A&#65; Uppercase A
661024201000010B&#66; Uppercase B
671034301000011C&#67; Uppercase C
681044401000100D&#68; Uppercase D
691054501000101E&#69; Uppercase E
701064601000110F&#70; Uppercase F
711074701000111G&#71; Uppercase G
721104801001000H&#72; Uppercase H
731114901001001I&#73; Uppercase I
741124A01001010J&#74; Uppercase J
751134B01001011K&#75; Uppercase K
761144C01001100L&#76; Uppercase L
771154D01001101M&#77; Uppercase M
781164E01001110N&#78; Uppercase N
791174F01001111O&#79; Uppercase O
801205001010000P&#80; Uppercase P
811215101010001Q&#81; Uppercase Q
821225201010010R&#82; Uppercase R
831235301010011S&#83; Uppercase S
841245401010100T&#84; Uppercase T
851255501010101U&#85; Uppercase U
861265601010110V&#86; Uppercase V
871275701010111W&#87; Uppercase W
881305801011000X&#88; Uppercase X
891315901011001Y&#89; Uppercase Y
901325A01011010Z&#90; Uppercase Z
911335B01011011[&#91;&lsqb;Opening bracket
921345C01011100\&#92;&bsol;Backslash
931355D01011101]&#93;&rsqb;Closing bracket
941365E01011110^&#94;&Hat;Caret - circumflex
951375F01011111_&#95;&lowbar;Underscore
961406001100000`&#96;&grave;Grave accent
971416101100001a&#97; Lowercase a
981426201100010b&#98; Lowercase b
991436301100011c&#99; Lowercase c
1001446401100100d&#100; Lowercase d
1011456501100101e&#101; Lowercase e
1021466601100110f&#102; Lowercase f
1031476701100111g&#103; Lowercase g
1041506801101000h&#104; Lowercase h
1051516901101001i&#105; Lowercase i
1061526A01101010j&#106; Lowercase j
1071536B01101011k&#107; Lowercase k
1081546C01101100l&#108; Lowercase l
1091556D01101101m&#109; Lowercase m
1101566E01101110n&#110; Lowercase n
1111576F01101111o&#111; Lowercase o
1121607001110000p&#112; Lowercase p
1131617101110001q&#113; Lowercase q
1141627201110010r&#114; Lowercase r
1151637301110011s&#115; Lowercase s
1161647401110100t&#116; Lowercase t
1171657501110101u&#117; Lowercase u
1181667601110110v&#118; Lowercase v
1191677701110111w&#119; Lowercase w
1201707801111000x&#120; Lowercase x
1211717901111001y&#121; Lowercase y
1221727A01111010z&#122; Lowercase z
1231737B01111011{&#123;&lcub;Opening brace
1241747C01111100|&#124;&verbar;Vertical bar
1251757D01111101}&#125;&rcub;Closing brace
1261767E01111110~&#126;&tilde;Equivalency sign - tilde
1271777F01111111&#127; Delete
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