EDIT This Unicode block is a collection of visible glyphs for control characters.
 
U+2400U+2401U+2402U+2403U+2404U+2405U+2406U+2407U+2408U+2409U+240AU+240BU+240CU+240DU+240EU+240FU+2410U+2411U+2412U+2413U+2414U+2415U+2416U+2417U+2418U+2419U+241AU+241BU+241CU+241DU+241EU+241FU+2420U+2421U+2422U+2423U+2424U+2425U+2426U+2427 NOT ASSIGNEDU+2428 NOT ASSIGNEDU+2429 NOT ASSIGNEDU+242A NOT ASSIGNEDU+242B NOT ASSIGNEDU+242C NOT ASSIGNEDU+242D NOT ASSIGNEDU+242E NOT ASSIGNEDU+242F NOT ASSIGNEDU+2430 NOT ASSIGNEDU+2431 NOT ASSIGNEDU+2432 NOT ASSIGNEDU+2433 NOT ASSIGNEDU+2434 NOT ASSIGNEDU+2435 NOT ASSIGNEDU+2436 NOT ASSIGNEDU+2437 NOT ASSIGNEDU+2438 NOT ASSIGNEDU+2439 NOT ASSIGNEDU+243A NOT ASSIGNEDU+243B NOT ASSIGNEDU+243C NOT ASSIGNEDU+243D NOT ASSIGNEDU+243E NOT ASSIGNEDU+243F NOT ASSIGNED
U+2400 SYMBOL FOR NULL
U+2401 SYMBOL FOR START OF HEADING
U+2402 SYMBOL FOR START OF TEXT
U+2403 SYMBOL FOR END OF TEXT
U+2404 SYMBOL FOR END OF TRANSMISSION
U+2405 SYMBOL FOR ENQUIRY
U+2406 SYMBOL FOR ACKNOWLEDGE
U+2407 SYMBOL FOR BELL
U+2408 SYMBOL FOR BACKSPACE
U+2409 SYMBOL FOR HORIZONTAL TABULATION
U+240A SYMBOL FOR LINE FEED
U+240B SYMBOL FOR VERTICAL TABULATION
U+240C SYMBOL FOR FORM FEED
U+240D SYMBOL FOR CARRIAGE RETURN
U+240E SYMBOL FOR SHIFT OUT
U+240F SYMBOL FOR SHIFT IN
U+2410 SYMBOL FOR DATA LINK ESCAPE
U+2411 SYMBOL FOR DEVICE CONTROL ONE
U+2412 SYMBOL FOR DEVICE CONTROL TWO
U+2413 SYMBOL FOR DEVICE CONTROL THREE
U+2414 SYMBOL FOR DEVICE CONTROL FOUR
U+2415 SYMBOL FOR NEGATIVE ACKNOWLEDGE
U+2416 SYMBOL FOR SYNCHRONOUS IDLE
U+2417 SYMBOL FOR END OF TRANSMISSION BLOCK
U+2418 SYMBOL FOR CANCEL
U+2419 SYMBOL FOR END OF MEDIUM
U+241A SYMBOL FOR SUBSTITUTE
U+241B SYMBOL FOR ESCAPE
U+241C SYMBOL FOR FILE SEPARATOR
U+241D SYMBOL FOR GROUP SEPARATOR
U+241E SYMBOL FOR RECORD SEPARATOR
U+241F SYMBOL FOR UNIT SEPARATOR
U+2420 SYMBOL FOR SPACE
U+2421 SYMBOL FOR DELETE
U+2422 BLANK SYMBOL
U+2423 OPEN BOX
U+2424 SYMBOL FOR NEWLINE
U+2425 SYMBOL FOR DELETE FORM TWO
U+2426 SYMBOL FOR SUBSTITUTE FORM TWO
U+2427 
U+2428 
U+2429 
U+242A 
U+242B 
U+242C 
U+242D 
U+242E 
U+242F 
U+2430 
U+2431 
U+2432 
U+2433 
U+2434 
U+2435 
U+2436 
U+2437 
U+2438 
U+2439 
U+243A 
U+243B 
U+243C 
U+243D 
U+243E 
U+243F 
CHARACTER  < BLOCK > 
U+2400 – U+243F Control Pictures
DEUTSCH : ENGLISH