The ASCII table of 128 character codes

The ASCII (American Standard Code for Information Interchange) table specifies the characters (column c of the table below) associated with the numbers 0 to 127 (Unicode numbers U+0000 to U+007F). The set of all the characters in the table constitutes the ASCII alphabet.

decimal	byte	Unicode	`c`	observation

0	`00000000`	U+0000	\0	null byte
1	`00000001`	U+0001		not used
2	`00000010`	U+0002		not used
3	`00000011`	U+0003		not used
4	`00000100`	U+0004		not used
5	`00000101`	U+0005		not used
6	`00000110`	U+0006		not used
7	`00000111`	U+0007	\a	bell
8	`00001000`	U+0008	\b	backspace
9	`00001001`	U+0009	\t	tab
10	`00001010`	U+000A	\n	end of line
11	`00001011`	U+000B	\v	vertical tab
12	`00001100`	U+000C	\f	end of page
13	`00001101`	U+000D	\r	carriage return
14	`00001110`	U+000E		not used
15	`00001111`	U+000F		not used
16	`00010000`	U+0010		not used
17	`00010001`	U+0011		not used
18	`00010010`	U+0012		not used
19	`00010011`	U+0013		not used
20	`00010100`	U+0014		not used
21	`00010101`	U+0015		not used
22	`00010110`	U+0016		not used
23	`00010111`	U+0017		not used
24	`00011000`	U+0018		not used
25	`00011001`	U+0019		not used
26	`00011010`	U+001A		not used
27	`00011011`	U+001B		escape
28	`00011100`	U+001C		not used
29	`00011101`	U+001D		not used
30	`00011110`	U+001E		not used
31	`00011111`	U+001F		not used
32	`00100000`	U+0020		space
33	`00100001`	U+0021	!
34	`00100010`	U+0022	"	double quotes
35	`00100011`	U+0023	#
36	`00100100`	U+0024	$
37	`00100101`	U+0025	%
38	`00100110`	U+0026	&
39	`00100111`	U+0027	'	single quote
40	`00101000`	U+0028	(
41	`00101001`	U+0029	)
42	`00101010`	U+002A	*
43	`00101011`	U+002B	+
44	`00101100`	U+002C	,	comma
45	`00101101`	U+002D	-	hyphen
46	`00101110`	U+002E	.	dot
47	`00101111`	U+002F	/
48	`00110000`	U+0030	0
49	`00110001`	U+0031	1
50	`00110010`	U+0032	2
51	`00110011`	U+0033	3
52	`00110100`	U+0034	4
53	`00110101`	U+0035	5
54	`00110110`	U+0036	6
55	`00110111`	U+0037	7
56	`00111000`	U+0038	8
57	`00111001`	U+0039	9
58	`00111010`	U+003A	:
59	`00111011`	U+003B	;
60	`00111100`	U+003C	<
61	`00111101`	U+003D	=
62	`00111110`	U+003E	>
63	`00111111`	U+003F	?
64	`01000000`	U+0040	@
65	`01000001`	U+0041	A
66	`01000010`	U+0042	B
67	`01000011`	U+0043	C
68	`01000100`	U+0044	D
69	`01000101`	U+0045	E
70	`01000110`	U+0046	F
71	`01000111`	U+0047	G
72	`01001000`	U+0048	H
73	`01001001`	U+0049	I
74	`01001010`	U+004A	J
75	`01001011`	U+004B	K
76	`01001100`	U+004C	L
77	`01001101`	U+004D	M
78	`01001110`	U+004E	N
79	`01001111`	U+004F	O
80	`01010000`	U+0050	P
81	`01010001`	U+0051	Q
82	`01010010`	U+0052	R
83	`01010011`	U+0053	S
84	`01010100`	U+0054	T
85	`01010101`	U+0055	U
86	`01010110`	U+0056	V
87	`01010111`	U+0057	W
88	`01011000`	U+0058	X
89	`01011001`	U+0059	Y
90	`01011010`	U+005A	Z
91	`01011011`	U+005B	[
92	`01011100`	U+005C	\
93	`01011101`	U+005D	]
94	`01011110`	U+005E	^
95	`01011111`	U+005F	_	underscore
96	`01100000`	U+0060	`	grave accent
97	`01100001`	U+0061	a
98	`01100010`	U+0062	b
99	`01100011`	U+0063	c
100	`01100100`	U+0064	d
101	`01100101`	U+0065	e
102	`01100110`	U+0066	f
103	`01100111`	U+0067	g
104	`01101000`	U+0068	h
105	`01101001`	U+0069	i
106	`01101010`	U+006A	j
107	`01101011`	U+006B	k
108	`01101100`	U+006C	l
109	`01101101`	U+006D	m
110	`01101110`	U+006E	n
111	`01101111`	U+006F	o
112	`01110000`	U+0070	p
113	`01110001`	U+0071	q
114	`01110010`	U+0072	r
115	`01110011`	U+0073	s
116	`01110100`	U+0074	t
117	`01110101`	U+0075	u
118	`01110110`	U+0076	v
119	`01110111`	U+0077	w
120	`01111000`	U+0078	x
121	`01111001`	U+0079	y
122	`01111010`	U+007A	z
123	`01111011`	U+007B	{
124	`01111100`	U+007C	\|
125	`01111101`	U+007D	}
126	`01111110`	U+007E	~
127	`01111111`	U+007F		delete

decimal	byte	Unicode	`c`	observation

(The ISO-LATIN-1 extension of this table is rarely used since the popularization of the UTF-8 encoding.)