The following chart contains the first 128 ASCII decimal, octal, hexadecimal and character codes.
Decimal | Octal | Hex | Character | Description |
---|---|---|---|---|
0 | 0 | 00 | NUL | |
1 | 1 | 01 | SOH | start of header |
2 | 2 | 02 | STX | start of text |
3 | 3 | 03 | ETX | end of text |
4 | 4 | 04 | EOT | end of transmission |
5 | 5 | 05 | ENQ | enquiry |
6 | 6 | 06 | ACK | acknowledge |
7 | 7 | 07 | BEL | bell |
8 | 10 | 08 | BS | backspace |
9 | 11 | 09 | HT | horizontal tab |
10 | 12 | 0A | LF | line feed |
11 | 13 | 0B | VT | vertical tab |
12 | 14 | 0C | FF | form feed |
13 | 15 | 0D | CR | carriage return |
14 | 16 | 0E | SO | shift out |
15 | 17 | 0F | SI | shift in |
16 | 20 | 10 | DLE | data link escape |
17 | 21 | 11 | DC1 | no assignment, but usually XON |
18 | 22 | 12 | DC2 | |
19 | 23 | 13 | DC3 | no assignment, but usually XOFF |
20 | 24 | 14 | DC4 | |
21 | 25 | 15 | NAK | negative acknowledge |
22 | 26 | 16 | SYN | synchronous idle |
23 | 27 | 17 | ETB | end of transmission block |
24 | 30 | 18 | CAN | cancel |
25 | 31 | 19 | EM | end of medium |
26 | 32 | 1A | SUB | substitute |
27 | 33 | 1B | ESC | escape |
28 | 34 | 1C | FS | file separator |
29 | 35 | 1D | GS | group separator |
30 | 36 | 1E | RS | record separator |
31 | 37 | 1F | US | unit separator |
32 | 40 | 20 | SPC | space |
33 | 41 | 21 | ! | |
34 | 42 | 22 | “ | |
35 | 43 | 23 | # | |
36 | 44 | 24 | $ | |
37 | 45 | 25 | % | |
38 | 46 | 26 | & | |
39 | 47 | 27 | ' | |
40 | 50 | 28 | ( | |
41 | 51 | 29 | ) | |
42 | 52 | 2A | * | |
43 | 53 | 2B | + | |
44 | 54 | 2C | , | |
45 | 55 | 2D | - | |
46 | 56 | 2E | . | |
47 | 57 | 2F | / | |
48 | 60 | 30 | 0 | |
49 | 61 | 31 | 1 | |
50 | 62 | 32 | 2 | |
51 | 63 | 33 | 3 | |
52 | 64 | 34 | 4 | |
53 | 65 | 35 | 5 | |
54 | 66 | 36 | 6 | |
55 | 67 | 37 | 7 | |
56 | 70 | 38 | 8 | |
57 | 71 | 39 | 9 | |
58 | 72 | 3A | : | |
59 | 73 | 3B | ; | |
60 | 74 | 3C | < | |
61 | 75 | 3D | = | |
62 | 76 | 3E | > | |
63 | 77 | 3F | ? | |
64 | 100 | 40 | @ | |
65 | 101 | 41 | A | |
66 | 102 | 42 | B | |
67 | 103 | 43 | C | |
68 | 104 | 44 | D | |
69 | 105 | 45 | E | |
70 | 106 | 46 | F | |
71 | 107 | 47 | G | |
72 | 110 | 48 | H | |
73 | 111 | 49 | I | |
74 | 112 | 4A | J | |
75 | 113 | 4B | K | |
76 | 114 | 4C | L | |
77 | 115 | 4D | M | |
78 | 116 | 4E | N | |
79 | 117 | 4F | O | |
80 | 120 | 50 | P | |
81 | 121 | 51 | Q | |
82 | 122 | 52 | R | |
83 | 123 | 53 | S | |
84 | 124 | 54 | T | |
85 | 125 | 55 | U | |
86 | 126 | 56 | V | |
87 | 127 | 57 | W | |
88 | 130 | 58 | X | |
89 | 131 | 59 | Y | |
90 | 132 | 5A | Z | |
91 | 133 | 5B | [ | |
92 | 134 | 5C | \ | |
93 | 135 | 5D | ] | |
94 | 136 | 5E | ^ | |
95 | 137 | 5F | _ | |
96 | 140 | 60 | ` | |
97 | 141 | 61 | a | |
98 | 142 | 62 | b | |
99 | 143 | 63 | c | |
100 | 144 | 64 | d | |
101 | 145 | 65 | e | |
102 | 146 | 66 | f | |
103 | 147 | 67 | g | |
104 | 150 | 68 | h | |
105 | 151 | 69 | i | |
106 | 152 | 6A | j | |
107 | 153 | 6B | k | |
108 | 154 | 6C | l | |
109 | 155 | 6D | m | |
110 | 156 | 6E | n | |
111 | 157 | 6F | o | |
112 | 160 | 70 | p | |
113 | 161 | 71 | q | |
114 | 162 | 72 | r | |
115 | 163 | 73 | s | |
116 | 164 | 74 | t | |
117 | 165 | 75 | u | |
118 | 166 | 76 | v | |
119 | 167 | 77 | w | |
120 | 170 | 78 | x | |
121 | 171 | 79 | y | |
122 | 172 | 7A | z | |
123 | 173 | 7B | { | |
124 | 174 | 7C | | | |
125 | 175 | 7D | } | |
126 | 176 | 7E | ~ | |
127 | 177 | 7F | DEL | delete |