ASCII Codes 415
ASCII Codes
This appendix provides the 128 ASCII codes (American Standard Code for Information Interchange)
as defined by ANSI (American National Standards Institute) Standard X3.4-1977.
Control Codes
Hex Dec Character Name Description
00 0 ^ @ NUL Null
01 1 ^A SOH Start of Header
02 2 ^B STX Start of Text
03 3 ^C ETX End of Text
04 4 ^D EOT End of Transmission
05 5 ^E ENQ Enquiry
06 6 ^F ACK Acknowledge
07 7 ^G BEL Bell
08 8 ^H BS Backspace
09 9 ^I HT Horizontal Tab
0A 10 ^J LF Line Feed
0B 11 ^K VT Vertical Tab
0C 12 ^L FF Form Feed
0D 13 ^M CR Carriage Return
0E 14 ^N SO Shift Out
0F 15 ^O SI Shift In
10 16 ^P DLE Data Link Escape
11 17 ^Q DCI Device Control 1
12 18 ^R DC2 Device Control 2
13 19 ^S DC3 Device Control 3
14 20 ^T DC4 Device Control 4
15 21 ^U NAK Negative Acknowledge
16 22 ^V SYN Synchronous Idle
17 23 ^W ETB End Transmission Block
18 24 ^X CAN Cancel
19 25 ^Y EM End of Medium
1A 26 ^Z Sub Substitute
1B 27 ^[ ESC Escape
1C 28 ^\ FS File Separator
1D 29 ^] GS Group Separator
1E 30 ^^ RS Record Separator
1F 31 ^_ US Unit Separator
20 32 SP Space
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