ASCII

Abbreviation for ASCII is American Standard Code for Information Interchange, it is a character encoding scheme used to represent text in Laptop, and modern computing devices.

ASCII table

ASCII was included into the Unicode character set as the first 128 symbols. ASCII table below contains descriptions of the first 32 non-printing Ascii characters, means these are used to represent control characters.

Remaining 95 printable Ascii characters in total, known as the printable characters, represent letters, digits, punctuation marks, and miscellaneous symbols. Let us see the ascii code table containing characters and symbols

ASCII Code reference table

Decimal Octal Hex BinaryHTML ValueDescription
0000 NUL(Null char.)
1111 SOH(Start of Header)
22210 STX(Start of Text)
33311 ETX(End of Text)
444100 EOT(End of Transmission)
555101 ENQ(Enquiry)
666110 ACK(Acknowledgment)
777111 BEL(Bell)
81081000  BS(Backspace)
91191001  HT(Horizontal Tab)
101200A1010  LF(Line Feed)
111300B1011  VT(Vertical Tab)
121400C1100  FF(Form Feed)
131500D1101  CR(Carriage Return)
141600E1110  SO(Shift Out)
151700F1111  SI(Shift In)
16201010000 DLE(Data Link Escape)
17211110001 DC1 (XON) (Device Control 1)
18221210010 DC2 (Device Control 2)
19231310011 DC3 (XOFF)(Device Control 3)
20241410100 DC4 (Device Control 4)
21251510101 NAK (Negative Acknowledgemnt)
22261610110 SYN(Synchronous Idle)
23271710111 ETB(End of Trans. Block)
24301811000 CAN(Cancel)
25311911001  EM(End of Medium)
263201A11010 SUB(Substitute)
273301B11011 ESC(Escape)
283401C11100  FS(File Separator)
293501D11101  GS(Group Separator)
303601E11110  RS (Reqst to Send)(Rec. Sep.)
313701F11111  US(Unit Separator)
324020100000   SP(Space)
334121100001 ! !(exclamation mark)
344222100010 " "(double quote)
354323100011 # #(number sign)
364424100100 $ $(dollar sign)
374525100101 % %(percent)
384626100110 & &(ampersand)
394727100111 ' '(single quote)
405028101000 ( ( (left/open parenthesis)
415129101001 ) ) (right/closing parenth.)
425202A101010 * *(asterisk)
435302B101011 + +(plus)
445402C101100 , ,(comma)
455502D101101 - -(minus or dash)
465602E101110 . .(dot)
475702F101111 / /(forward slash)
486030110000 0 0 
496131110001 1 1 
506232110010 2 2 
516333110011 3 3 
526434110100 4 4 
536535110101 5 5 
546636110110 6 6 
556737110111 7 7 
567038111000 8 8 
577139111001 9 9 
587203A111010 : :(colon)
597303B111011 &#59; ;(semi-colon)
607403C111100 &#60; <(less than)
617503D111101 &#61; =(equal sign)
627603E111110 &#62; >(greater than)
637703F111111 &#63; ?(question mark)
64100401000000 &#64; @(AT symbol)
65101411000001 &#65; A 
66102421000010 &#66; B 
67103431000011 &#67; C 
68104441000100 &#68; D 
69105451000101 &#69; E 
70106461000110 &#70; F 
71107471000111 &#71; G 
72110481001000 &#72; H 
73111491001001 &#73; I 
7411204A1001010 &#74; J 
7511304B1001011 &#75; K 
7611404C1001100 &#76; L 
7711504D1001101 &#77; M 
7811604E1001110 &#78; N 
7911704F1001111 &#79; O 
80120501010000 &#80; P 
81121511010001 &#81; Q 
82122521010010 &#82; R 
83123531010011 &#83; S 
84124541010100 &#84; T 
85125551010101 &#85; U 
86126561010110 &#86; V 
87127571010111 &#87; W 
88130581011000 &#88; X 
89131591011001 &#89; Y 
9013205A1011010 &#90; Z 
9113305B1011011 &#91; [(left/opening bracket)
9213405C1011100 &#92; \(back slash)
9313505D1011101 &#93; ](right/closing bracket)
9413605E1011110 &#94; ^(caret/circumflex)
9513705F1011111 &#95; _(underscore)
96140601100000 &#96; ` 
97141611100001 &#97; a 
98142621100010 &#98; b 
99143631100011 &#99; c 
100144641100100 &#100; d 
101145651100101 &#101; e 
102146661100110 &#102; f 
103147671100111 &#103; g 
104150681101000 &#104; h 
105151691101001 &#105; i 
10615206A1101010 &#106; j 
10715306B1101011 &#107; k 
10815406C1101100 &#108; l 
10915506D1101101 &#109; m 
11015606E1101110 &#110; n 
11115706F1101111 &#111; o 
112160701110000 &#112; p 
113161711110001 &#113; q 
114162721110010 &#114; r 
115163731110011 &#115; s 
116164741110100 &#116; t 
117165751110101 &#117; u 
118166761110110 &#118; v 
119167771110111 &#119; w 
120170781111000 &#120; x 
121171791111001 &#121; y 
12217207A1111010 &#122; z 
12317307B1111011 &#123; {(left/opening brace)
12417407C1111100 &#124; |(vertical bar)
12517507D1111101 &#125; }(right/closing brace)
12617607E1111110 &#126; ~(tilde)
12717707F1111111 &#127; DEL(delete)

IANA recomends other name for Internet usage is "US-ASCII"

ASCII Alias names

Below are listed name for the ASCII over the Internet and standard codes format.

  • ANSI_X3.4-1968
  • iso-ir-6
  • ANSI_X3.4-1986
  • ISO_646.irv:1991
  • ASCII
  • ISO646-US
  • US-ASCII ( IANA Recomended name)
  • IBM367
  • cp367
  • csASCII