| ␀ | NUL (Null) | 0 | Control | Empty state, zero value | Spirit / Void |
| ␁ | SOH (Start of Heading) | 1 | Control | Begin meta-information | Air / Initiate |
| ␂ | STX (Start of Text) | 2 | Control | Begin data stream | Air / Data Start |
| ␃ | ETX (End of Text) | 3 | Control | Close data stream | Air / Data End |
| ␄ | EOT (End of Transmission) | 4 | Control | Communication termination | Earth / Closure |
| ␅ | ENQ (Enquiry) | 5 | Control | Request status | Air / Query |
| ␆ | ACK (Acknowledge) | 6 | Control | Confirm receipt | Earth / Affirmation |
| ␇ | BEL (Bell) | 7 | Control | Alert signal | Fire / Alert |
| ␈ | BS (Backspace) | 8 | Control | Remove previous character | Earth / Correction |
| ␉ | HT (Horizontal Tab) | 9 | Control | Move to next field | Air / Spacing |
| ␊ | LF (Line Feed) | 10 | Control | New line start | Water / Flow |
| ␋ | VT (Vertical Tab) | 11 | Control | Move vertical field | Air / Vertical Space |
| ␌ | FF (Form Feed) | 12 | Control | New page or section | Earth / Page Break |
| ␍ | CR (Carriage Return) | 13 | Control | Return to line start | Earth / Reset Line |
| ␎ | SO (Shift Out) | 14 | Control | Switch to alt set | Air / Mode Change |
| ␏ | SI (Shift In) | 15 | Control | Switch to primary set | Air / Mode Return |
| ␐ | DLE (Data Link Escape) | 16 | Control | Escape control channel | Air / Channel Control |
| ␑ | DC1 (Device Control 1) | 17 | Control | Flow control ON | Fire / Enable |
| ␒ | DC2 (Device Control 2) | 18 | Control | Alt device action | Fire / Device Mode |
| ␓ | DC3 (Device Control 3) | 19 | Control | Flow control OFF | Water / Disable |
| ␔ | DC4 (Device Control 4) | 20 | Control | Alt device control | Fire / Device Mode Alt |
| ␕ | NAK (Negative Acknowledge) | 21 | Control | Transmission error | Earth / Error |
| ␖ | SYN (Synchronous Idle) | 22 | Control | Keep-alive signal | Air / Heartbeat |
| ␗ | ETB (End of Transmission Block) | 23 | Control | Block transmission close | Earth / Block End |
| ␘ | CAN (Cancel) | 24 | Control | Abort sequence | Earth / Cancel |
| ␙ | EM (End of Medium) | 25 | Control | End of storage media | Earth / Storage End |
| ␚ | SUB (Substitute) | 26 | Control | Replace with placeholder | Air / Replacement |
| ␛ | ESC (Escape) | 27 | Control | Start control sequence | Air / Escape Mode |
| ␜ | FS (File Separator) | 28 | Control | Divide data units | Earth / Data Split |
| ␝ | GS (Group Separator) | 29 | Control | Divide record groups | Earth / Group Split |
| ␞ | RS (Record Separator) | 30 | Control | Divide records | Earth / Record Split |
| ␟ | US (Unit Separator) | 31 | Control | Divide smallest units | Earth / Unit Split |
| ␠ | Space | 32 | Whitespace | Separate words | Air / Gap |
| ␡ | DEL (Delete) | 127 | Control | Remove item | Earth / Remove |
| ␢ | Blank Symbol | — | Typographic | Visible space marker | Air / Space Marker |
| ␣ | Open Box (Visible Space) | — | Typographic | Show whitespace explicitly | Air / Visible Gap |
|  | Newline Symbol | — | Typographic | Mark line break | Water / Flow Break |
| ␥ | Symbol for Carriage Return | — | Typographic | Mark CR | Earth / Return Mark |
| ␦ | Symbol for Delete | — | Typographic | Show deletion | Earth / Erasure |
