ASCII Codes — Full list of Characters, Letters, Symbols & Signs
ASCII is an abbreviation for the American Standard Code for Information Interchange. Approved by the American Standards Association (now known as ANSI for American National Standards Institute) in 1963, ASCII defined the standard for displaying characters on electronic devices.
Almost all computer systems today use the ASCII code to represent characters and texts. ASCII is often called US-ASCII. Now, ISO 646 is the internationally defined character sets standard.
ASCII started a 7-bit code, with 128 characters. The code consists of 33 non-printable and 95 printable characters. It includes letters, punctuation marks, numbers and control characters. It was later expanded by IBM to an 8-bit code and 256 characters.
Here’s the full list of ASCII characters, letters, symbols and signs, arranged in the order of character types.
Here’s the list of 128 characters defined in the ASCII code.
ASCII Code — Dec. | ASCII Symbol | Explanation | Group |
---|---|---|---|
0 | NUL | The null character prompts the device to do nothing | Control Character |
1 | SOH | Initiates a header (Start of Heading) | Control Character |
2 | STX | Ends the header and marks the beginning of a message. (start of text) | Control Character |
3 | ETX | Indicates the end of the message (end of text) | Control Character |
4 | EOT | Marks the end of a completes transmission (End of Transmission) | Control Character |
5 | ENQ | A request that requires a response (Enquiry) | Control Character |
6 | ACK | Gives a positive answer to the request (Acknowledge) | Control Character |
7 | BEL | Triggers a beep (Bell) | Control Character |
8 | BS | Lets the cursor move back one step (Backspace) | Control Character |
9 | TAB (HT) | A horizontal tab that moves the cursor within a row to the next predefined position (Horizontal Tab) | Control Character |
10 | LF | Causes the cursor to jump to the next line (Line Feed) | Control Character |
11 | VT | The vertical tab lets the cursor jump to a predefined line (Vertical Tab) | Control Character |
12 | FF | Requests a page break (Form Feed) | Control Character |
13 | CR | Moves the cursor back to the first position of the line (Carriage Return) | Control Character |
14 | SO | Switches to a special presentation (Shift Out) | Control Character |
15 | SI | Switches the display back to the normal state (Shift In) | Control Character |
16 | DLE | Changes the meaning of the following characters (Data Link Escape) | Control Character |
17 | DC1 | Control characters assigned depending on the device used (Device Control) | Control Character |
18 | DC2 | Control characters assigned depending on the device used (Device Control) | Control Character |
19 | DC3 | Control characters assigned depending on the device used (Device Control) | Control Character |
20 | DC4 | Control characters assigned depending on the device used (Device Control) | Control Character |
21 | NAK | Negative response to a request (Negative Acknowledge) | Control Character |
22 | SYN | Synchronizes a data transfer, even if no signals are transmitted (Synchronous Idle) | Control Character |
23 | ETB | Marks the end of a transmission block (End of Transmission Block) | Control Character |
24 | CAN | Makes it clear that a transmission was faulty and the data must be discarded (Cancel) | Control Character |
25 | EM | Indicates the end of the storage medium (End of Medium) | Control Character |
26 | SUB | Replacement for a faulty sign (Substitute) | Control Character |
27 | ESC | Initiates an escape sequence and thus gives the following characters a special meaning (Escape) | Control Character |
28 | FS | Marks the separation of logical data blocks and is hierarchically ordered: file as the largest unit, file as the smallest unit.(File Separator, Group Separator, Record Separator, Unit Separator) | Control Character |
29 | GS | Marks the separation of logical data blocks and is hierarchically ordered: file as the largest unit, file as the smallest unit.(File Separator, Group Separator, Record Separator, Unit Separator) | Control Character |
30 | RS | Marks the separation of logical data blocks and is hierarchically ordered: file as the largest unit, file as the smallest unit.(File Separator, Group Separator, Record Separator, Unit Separator) | Control Character |
31 | US | Marks the separation of logical data blocks and is hierarchically ordered: file as the largest unit, file as the smallest unit.(File Separator, Group Separator, Record Separator, Unit Separator) | Control Character |
32 | SP | Blank space (Space) | Special Character |
33 | ! | Exclamation mark | Special Character |
34 | Only quotes above | Special Character | |
35 | # | Pound sign | Special Character |
36 | $ | Dollar sign | Special Character |
37 | % | Percentage sign | Special Character |
38 | & | Commericial and | Special Character |
39 | Apostrophe | Special Character | |
40 | ( | Left bracket | Special Character |
41 | ) | Right bracket | Special Character |
42 | * | Asterisk | Special Character |
43 | + | Plus symbol | Special Character |
44 | , | Comma | Special Character |
45 | – | Dash | Special Character |
46 | . | Full stop | Special Character |
47 | / | Forward slash | Special Character |
48 | 0 | Numbers | |
49 | 1 | Numbers | |
50 | 2 | Numbers | |
51 | 3 | Numbers | |
52 | 4 | Numbers | |
53 | 5 | Numbers | |
54 | 6 | Numbers | |
55 | 7 | Numbers | |
56 | 8 | Numbers | |
57 | 9 | Numbers | |
58 | : | Colon | Special characters |
59 | ; | Semicolon | Special characters |
60 | < | Small than bracket | Special characters |
61 | = | Equals sign | Special characters |
62 | > | Bigger than symbol | Special characters |
63 | ? | Question mark | Special characters |
64 | @ | At symbol | Special characters |
65 | A | Capital letters | |
66 | B | Capital letters | |
67 | C | Capital letters | |
68 | D | Capital letters | |
69 | E | Capital letters | |
70 | F | Capital letters | |
71 | G | Capital letters | |
72 | H | Capital letters | |
73 | I | Capital letters | |
74 | J | Capital letters | |
75 | K | Capital letters | |
76 | L | Capital letters | |
77 | M | Capital letters | |
78 | N | Capital letters | |
79 | O | Capital letters | |
80 | P | Capital letters | |
81 | Q | Capital letters | |
82 | R | Capital letters | |
83 | S | Capital letters | |
84 | T | Capital letters | |
85 | U | Capital letters | |
86 | V | Capital letters | |
87 | W | Capital letters | |
88 | X | Capital letters | |
89 | Y | Capital letters | |
90 | Z | Capital letters | |
91 | [ | Left square bracket | Special character |
92 | \ | Inverse/backward slash | Special character |
93 | ] | Right square bracket | Special character |
94 | ^ | Circumflex | Special character |
95 | _ | Underscore | Special character |
96 | ` | Gravis (backtick) | Special character |
97 | a | Lowercase letters | |
98 | b | Lowercase letters | |
99 | c | Lowercase letters | |
100 | d | Lowercase letters | |
101 | e | Lowercase letters | |
102 | f | Lowercase letters | |
103 | g | Lowercase letters | |
104 | h | Lowercase letters | |
105 | i | Lowercase letters | |
106 | j | Lowercase letters | |
107 | k | Lowercase letters | |
108 | l | Lowercase letters | |
109 | m | Lowercase letters | |
110 | n | Lowercase letters | |
111 | o | Lowercase letters | |
112 | p | Lowercase letters | |
113 | q | Lowercase letters | |
114 | r | Lowercase letters | |
115 | s | Lowercase letters | |
116 | t | Lowercase letters | |
117 | u | Lowercase letters | |
118 | v | Lowercase letters | |
119 | w | Lowercase letters | |
120 | x | Lowercase letters | |
121 | y | Lowercase letters | |
122 | z | Lowercase letters | |
123 | { | Left curly bracket | Special characters |
124 | l | Vertical line | Special characters |
125 | } | Right curly brackets | Special characters |
126 | ~ | Tilde | Special characters |
127 | DEL | Deletes a character. Since this control character consists of the same number on all positions, during the typewriter era it was possible to invalidate another character by punching out all the positions (Delete) | Control characters |
Here are the additional ASCII characters developed in the later phase once it was extended from 7-bit to 8-bit.
ASCII Code — Dec. | ASCII Symbol | Explanation | Group |
---|---|---|---|
128 | Ç | Majuscule c-cedilla | Extended Characters |
129 | ü | Letter “u” with umlaut or diaeresis ; “u-umlaut” | Extended Characters |
130 | é | Letter “e” with acute accent or “e-acute” | Extended Characters |
131 | â | Letter “a” with circumflex accent or “a-circumflex” | Extended Characters |
132 | ä | Letter “a” with umlaut or diaeresis ; “a-umlaut” | Extended Characters |
133 | à | Letter “a” with grave accent | Extended Characters |
134 | å | Letter “a” with a ring | Extended Characters |
135 | ç | Minuscule c-cedilla | Extended Characters |
136 | ê | Letter “e” with circumflex accent or “e-circumflex” | Extended Characters |
137 | ë | Letter “e” with umlaut or diaeresis ; “e-umlaut” | Extended Characters |
138 | è | Letter “e” with grave accent | Extended Characters |
139 | ï | Letter “i” with umlaut or diaeresis ; “i-umlaut” | Extended Characters |
140 | î | Letter “i” with circumflex accent or “i-circumflex” | Extended Characters |
141 | ì | Letter “i” with grave accent | Extended Characters |
142 | Ä | Letter “a” with umlaut or diaeresis ; “a-umlaut” | Extended Characters |
143 | Å | Capital letter “a” with a ring | Extended Characters |
144 | É | Capital letter “e” with acute accent or “e-acute” | Extended Characters |
145 | æ | Latin diphthong “ae” in lowercase | Extended Characters |
146 | Æ | Latin diphthong “ae” in uppercase | Extended Characters |
147 | ô | Letter “o” with circumflex accent or “o-circumflex” | Extended Characters |
148 | ö | Letter “o” with umlaut or diaeresis ; “o-umlaut” | Extended Characters |
149 | ò | Letter “o” with grave accent | Extended Characters |
150 | û | Letter “u” with circumflex accent or “u-circumflex” | Extended Characters |
151 | ù | Letter “u” with grave accent | Extended Characters |
152 | ÿ | Lowercase letter “y” with diaeresis | Extended Characters |
153 | Ö | Letter “o” with umlaut or diaeresis ; “o-umlaut” | Extended Characters |
154 | Ü | Letter “u” with umlaut or diaeresis ; “u-umlaut” | Extended Characters |
155 | ø | Slashed zero or empty set | Extended Characters |
156 | £ | Pound sign ; symbol for the pound sterling | Extended Characters |
157 | Ø | Slashed zero or empty set | Extended Characters |
158 | × | Multiplication sign | Extended Characters |
159 | ƒ | Function sign ; f with hook sign ; florin sign | Extended Characters |
160 | á | Letter “a” with acute accent or “a-acute” | Extended Characters |
161 | í | Letter “i” with acute accent or “i-acute” | Extended Characters |
162 | ó | Letter “o” with acute accent or “o-acute” | Extended Characters |
163 | ú | Letter “u” with acute accent or “u-acute” | Extended Characters |
164 | ñ | Letter “n” with tilde ; enye | Extended Characters |
165 | Ñ | Letter “n” with tilde ; enye | Extended Characters |
166 | ª | Feminine ordinal indicator | Extended Characters |
167 | º | Masculine ordinal indicator | Extended Characters |
168 | ¿ | Inverted question marks | Extended Characters |
169 | ® | Registered trademark symbol | Extended Characters |
170 | ¬ | Logical negation symbol | Extended Characters |
171 | ½ | One half | Extended Characters |
172 | ¼ | Quarter or one fourth | Extended Characters |
173 | ¡ | Inverted exclamation marks | Extended Characters |
174 | « | Angle quotes or guillemets | Extended Characters |
175 | » | Guillemets or angle quotes | Extended Characters |
176 | ░ | Extended Characters | |
177 | ▒ | Extended Characters | |
178 | ▓ | Extended Characters | |
179 | │ | Box drawing character | Extended Characters |
180 | ┤ | Box drawing character | Extended Characters |
181 | Á | Capital letter “a” with acute accent or “a-acute” | Extended Characters |
182 | Â | Letter “a” with circumflex accent or “a-circumflex” | Extended Characters |
183 | À | Letter “a” with grave accent | Extended Characters |
184 | © | Copyright symbol | Extended Characters |
185 | ╣ | Box drawing character | Extended Characters |
186 | ║ | Box drawing character | Extended Characters |
187 | ╗ | Box drawing character | Extended Characters |
188 | ╝ | Box drawing character | Extended Characters |
189 | ¢ | Cent symbol | Extended Characters |
190 | ¥ | Yen and yuan sign | Extended Characters |
191 | ┐ | Box drawing character | Extended Characters |
192 | └ | Box drawing character | Extended Characters |
193 | ┴ | Box drawing character | Extended Characters |
194 | ┬ | Box drawing character | Extended Characters |
195 | ├ | Box drawing character | Extended Characters |
196 | ─ | Box drawing character | Extended Characters |
197 | ┼ | Box drawing character | Extended Characters |
198 | ã | Lowercase letter “a” with tilde or “a-tilde” | Extended Characters |
199 | Ã | Capital letter “a” with tilde or “a-tilde” | Extended Characters |
200 | ╚ | Box drawing character | Extended Characters |
201 | ╔ | Box drawing character | Extended Characters |
202 | ╩ | Box drawing character | Extended Characters |
203 | ╦ | Box drawing character | Extended Characters |
204 | ╠ | Box drawing character | Extended Characters |
205 | ═ | Box drawing character | Extended Characters |
206 | ╬ | Box drawing character | Extended Characters |
207 | ¤ | Generic currency sign | Extended Characters |
208 | ð | Lowercase letter “eth” | Extended Characters |
209 | Ð | Capital letter “eth” | Extended Characters |
210 | Ê | Letter “e” with circumflex accent or “e-circumflex” | Extended Characters |
211 | Ë | Letter “e” with umlaut or diaeresis ; “e-umlaut” | Extended Characters |
212 | È | Letter “e” with grave accent | Extended Characters |
213 | ı | Lowercase dot less i | Extended Characters |
214 | Í | Capital letter “i” with acute accent or “i-acute” | Extended Characters |
215 | Î | Letter “i” with circumflex accent or “i-circumflex” | Extended Characters |
216 | Ï | Letter “i” with umlaut or diaeresis ; “i-umlaut” | Extended Characters |
217 | ┘ | Box drawing character | Extended Characters |
218 | ┌ | Box drawing character | Extended Characters |
219 | █ | Block | Extended Characters |
220 | ▄ | Bottom half block | Extended Characters |
221 | ¦ | Vertical broken bar | Extended Characters |
222 | Ì | Letter “i” with grave accent | Extended Characters |
223 | ▀ | Top half block | Extended Characters |
224 | Ó | Capital letter “o” with acute accent or “o-acute” | Extended Characters |
225 | ß | Letter “eszett” ; “scharfes s” or “sharp s” | Extended Characters |
226 | Ô | Letter “o” with circumflex accent or “o-circumflex” | Extended Characters |
227 | Ò | Letter “o” with grave accent | Extended Characters |
228 | õ | Letter “o” with tilde or “o-tilde” | Extended Characters |
229 | Õ | Letter “o” with tilde or “o-tilde” | Extended Characters |
230 | µ | Lowercase letter “mu” ; micro sign or micron | Extended Characters |
231 | þ | Lowercase letter “thorn” | Extended Characters |
232 | Þ | Capital letter “thorn” | Extended Characters |
233 | Ú | Capital letter “u” with acute accent or “u-acute” | Extended Characters |
234 | Û | Letter “u” with circumflex accent or “u-circumflex” | Extended Characters |
235 | Ù | Letter “u” with grave accent | Extended Characters |
236 | ý | Lowercase letter “y” with acute accent | Extended Characters |
237 | Ý | Capital letter “y” with acute accent | Extended Characters |
238 | ¯ | Macron symbol | Extended Characters |
239 | ´ | Acute accent | Extended Characters |
240 | | Hyphen | Extended Characters |
241 | ± | Plus-minus sign | Extended Characters |
242 | ‗ | Underline or underscore | Extended Characters |
243 | ¾ | Three quarters | Extended Characters |
244 | ¶ | Paragraph sign or pilcrow | Extended Characters |
245 | § | Section sign | Extended Characters |
246 | ÷ | The division sign ; obelus | Extended Characters |
247 | ¸ | Cedilla | Extended Characters |
248 | ° | Degree symbol | Extended Characters |
249 | ¨ | Diaeresis | Extended Characters |
250 | · | Interpunct or space dot | Extended Characters |
251 | ¹ | Superscript one | Extended Characters |
252 | ³ | Cube or superscript three | Extended Characters |
253 | ² | Square or superscript two | Extended Characters |
254 | ■ | Black square | Extended Characters |
255 | nbsp | Non-breaking space or no-break space | Extended Characters |
That’s the full list of ASCII characters, letters, symbols and signs, arranged in the order of character types.