Die ASCII-Tabelle enthält alle Kodierungen des ASCII-Zeichensatzes:
| Zeichen | Wert | Hex | Zeichen | Wert | Hex | Zeichen | Wert | Hex | Zeichen | Wert | Hex |
| NUL (null) | 0 | 0x00 | SOH (start of heading) | 1 | 0x01 | STX (start of text) | 2 | 0x02 | ETX (end of text) | 3 | 0x03 |
| EOT (end of transmission) | 4 | 0x04 | ENQ (enquiry) | 5 | 0x05 | ACK (acknowledge) | 6 | 0x06 | BEL (Bel) | 7 | 0x07 |
| BS (Backspace) | 8 | 0x08 | TAB (horizontal tab) | 9 | 0x09 | LF (Line Feed) | 10 | 0x0A | VT (vertical tab) | 11 | 0x0B |
| FF (Form Feed) | 12 | 0x0C | CR (Carriage Return) | 13 | 0x0D | SO (shift out) | 14 | 0x0E | SI (shift in) | 15 | 0x0F |
| DLE (data link escape) | 16 | 0x10 | x-on/DC1 (Daten senden) | 17 | 0x11 | DC2 (device control 2) | 18 | 0x12 | x-off/DC3 (keine Daten senden) | 19 | 0x13 |
| DC4 (device control 4) | 20 | 0x14 | NAK (negative acknowledge) | 21 | 0x15 | SYN (synchronous idle) | 22 | 0x16 | ETB (end of transmission block) | 23 | 0x17 |
| CAN (cancel) | 24 | 0x18 | EM (end of medium) | 25 | 0x19 | SUB (substitute) | 26 | 0x1A | ESC (escape) | 27 | 0x1B |
| FS (file separator) | 28 | 0x1C | GS (group separator) | 29 | 0x1D | RS (record separator) | 30 | 0x1E | US (unit separator) | 31 | 0x1F |
| SPC (Space) | 32 | 0x20 | ! | 33 | 0x21 | " | 34 | 0x22 | # | 35 | 0x23 |
| $ | 36 | 0x24 | % | 37 | 0x25 | & | 38 | 0x26 | ' | 39 | 0x27 |
| ( | 40 | 0x28 | ) | 41 | 0x29 | * | 42 | 0x2A | + | 43 | 0x2B |
| , | 44 | 0x2C | - | 45 | 0x2D | . | 46 | 0x2E | / | 47 | 0x2F |
| 0 | 48 | 0x30 | 1 | 49 | 0x31 | 2 | 50 | 0x32 | 3 | 51 | 0x33 |
| 4 | 52 | 0x34 | 5 | 53 | 0x35 | 6 | 54 | 0x36 | 7 | 55 | 0x37 |
| 8 | 56 | 0x38 | 9 | 57 | 0x39 | : | 58 | 0x3A | ; | 59 | 0x3B |
| < | 60 | 0x3C | = | 61 | 0x3D | > | 62 | 0x3E | ? | 63 | 0x3F |
| @ | 64 | 0x40 | A | 65 | 0x41 | B | 66 | 0x42 | C | 67 | 0x43 |
| D | 68 | 0x44 | E | 69 | 0x45 | F | 70 | 0x46 | G | 71 | 0x47 |
| H | 72 | 0x48 | I | 73 | 0x49 | J | 74 | 0x4A | K | 75 | 0x4B |
| L | 76 | 0x4C | M | 77 | 0x4D | N | 78 | 0x4E | O | 79 | 0x4F |
| P | 80 | 0x50 | Q | 81 | 0x51 | R | 82 | 0x52 | S | 83 | 0x53 |
| T | 84 | 0x54 | U | 85 | 0x55 | V | 86 | 0x56 | W | 87 | 0x57 |
| X | 88 | 0x58 | Y | 89 | 0x59 | Z | 90 | 0x5A | [ | 91 | 0x5B |
| \ | 92 | 0x5C | ] | 93 | 0x5D | ^ | 94 | 0x5E | _ | 95 | 0x5F |
| ` | 96 | 0x60 | a | 97 | 0x61 | b | 98 | 0x62 | c | 99 | 0x63 |
| d | 100 | 0x64 | e | 101 | 0x65 | f | 102 | 0x66 | g | 103 | 0x67 |
| h | 104 | 0x68 | i | 105 | 0x69 | j | 106 | 0x6A | k | 107 | 0x6B |
| l | 108 | 0x6C | m | 109 | 0x6D | n | 110 | 0x6E | o | 111 | 0x6F |
| p | 112 | 0x70 | q | 113 | 0x71 | r | 114 | 0x72 | s | 115 | 0x73 |
| t | 116 | 0x74 | u | 117 | 0x75 | v | 118 | 0x76 | w | 119 | 0x77 |
| x | 120 | 0x78 | y | 121 | 0x79 | z | 122 | 0x7A | { | 123 | 0x7B |
| 124 | 0x7C | } | 125 | 0x7D | ~ | 126 | 0x7E | DEL (rubout) | 127 | 0x7F |