| 1 | 0 | 000 | 00 | 00000000 | NUL | � | | Null char | ASCII control characters (character code 0-31) |
| 2 | 1 | 001 | 01 | 00000001 | SOH | | | Start of Heading | ASCII control characters (character code 0-31) |
| 3 | 2 | 002 | 02 | 00000010 | STX | | | Start of Text | ASCII control characters (character code 0-31) |
| 4 | 3 | 003 | 03 | 00000011 | ETX | | | End of Text | ASCII control characters (character code 0-31) |
| 5 | 4 | 004 | 04 | 00000100 | EOT | | | End of Transmission | ASCII control characters (character code 0-31) |
| 6 | 5 | 005 | 05 | 00000101 | ENQ | | | Enquiry | ASCII control characters (character code 0-31) |
| 7 | 6 | 006 | 06 | 00000110 | ACK | | | Acknowledgment | ASCII control characters (character code 0-31) |
| 8 | 7 | 007 | 07 | 00000111 | BEL | | | Bell | ASCII control characters (character code 0-31) |
| 9 | 8 | 010 | 08 | 00001000 | BS | | | Back Space | ASCII control characters (character code 0-31) |
| 10 | 9 | 011 | 09 | 00001001 | HT | | | Horizontal Tab | ASCII control characters (character code 0-31) |
| 11 | 10 | 012 | 0A | 00001010 | LF |
| | Line Feed | ASCII control characters (character code 0-31) |
| 12 | 11 | 013 | 0B | 00001011 | VT | | | Vertical Tab | ASCII control characters (character code 0-31) |
| 13 | 12 | 014 | 0C | 00001100 | FF | | | Form Feed | ASCII control characters (character code 0-31) |
| 14 | 13 | 015 | 0D | 00001101 | CR |
| | Carriage Return | ASCII control characters (character code 0-31) |
| 15 | 14 | 016 | 0E | 00001110 | SO | | | Shift Out / X-On | ASCII control characters (character code 0-31) |
| 16 | 15 | 017 | 0F | 00001111 | SI | | | Shift In / X-Off | ASCII control characters (character code 0-31) |
| 17 | 16 | 020 | 10 | 00010000 | DLE | | | Data Line Escape | ASCII control characters (character code 0-31) |
| 18 | 17 | 021 | 11 | 00010001 | DC1 | | | Device Control 1 (oft. XON) | ASCII control characters (character code 0-31) |
| 19 | 18 | 022 | 12 | 00010010 | DC2 | | | Device Control 2 | ASCII control characters (character code 0-31) |
| 20 | 19 | 023 | 13 | 00010011 | DC3 | | | Device Control 3 (oft. XOFF) | ASCII control characters (character code 0-31) |
| 21 | 20 | 024 | 14 | 00010100 | DC4 | | | Device Control 4 | ASCII control characters (character code 0-31) |
| 22 | 21 | 025 | 15 | 00010101 | NAK | | | Negative Acknowledgement | ASCII control characters (character code 0-31) |
| 23 | 22 | 026 | 16 | 00010110 | SYN | | | Synchronous Idle | ASCII control characters (character code 0-31) |
| 24 | 23 | 027 | 17 | 00010111 | ETB | | | End of Transmit Block | ASCII control characters (character code 0-31) |
| 25 | 24 | 030 | 18 | 00011000 | CAN | | | Cancel | ASCII control characters (character code 0-31) |
| 26 | 25 | 031 | 19 | 00011001 | EM | | | End of Medium | ASCII control characters (character code 0-31) |
| 27 | 26 | 032 | 1A | 00011010 | SUB | | | Substitute | ASCII control characters (character code 0-31) |
| 28 | 27 | 033 | 1B | 00011011 | ESC | | | Escape | ASCII control characters (character code 0-31) |
| 29 | 28 | 034 | 1C | 00011100 | FS | | | File Separator | ASCII control characters (character code 0-31) |
| 30 | 29 | 035 | 1D | 00011101 | GS | | | Group Separator | ASCII control characters (character code 0-31) |