Cisco IOS Configuration Fundamentals Command Reference, Release 12.2
ASCII Character Set and Hex Values
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ASCII Character Set and Hex Values

Table Of Contents

ASCII Character Set and Hex Values


ASCII Character Set and Hex Values


Some commands described in the Cisco IOS documentation set, such as the escape-character line configuration command, require that you enter the decimal representation of an ASCII character. Other commands, such as the snmp-server group command, make use of hexadecimal representations.

Table 136 provides code translations from the decimal numbers to their hexadecimal and ASCII equivalents. It also provides the keyword entry for each ASCII character. For example, the ASCII carriage return (CR) is decimal 13. Entering Ctrl-M at your terminal generates decimal 13, which is interpreted as a CR.

Table 136 ASCII Translation Table 

Numeric Values
Decimal   Hex
ASCII Character
Meaning
Keyboard Entry

0

00

NUL

Null

Ctrl-@

1

01

SOH

Start of heading

Ctrl-A

2

02

STX

Start of text

Ctrl-B

3

03

ETX

Break/end of text

Ctrl-C

4

04

EOT

End of transmission

Ctrl-D

5

05

ENQ

Enquiry

Ctrl-E

6

06

ACK

Positive acknowledgment

Ctrl-F

7

07

BEL

Bell

Ctrl-G

8

08

BS

Backspace

Ctrl-H

9

09

HT

Horizontal tab

Ctrl-I

10

0A

LF

Line feed

Ctrl-J

11

0B

VT

Vertical tab

Ctrl-K

12

0C

FF

Form feed

Ctrl-L

13

0D

CR

Carriage return (Equivilant to the Enter or Return key)

Ctrl-M

14

0E

SO

Shift out

Ctrl-N

15

0F

SI

Shift in/XON (resume output)

Ctrl-O

16

10

DLE

Data link escape

Ctrl-P

17

11

DC1

Device control character 1

Ctrl-Q

18

12

DC2

Device control character 2

Ctrl-R

19

13

DC3

Device control character 3

Ctrl-S

20

14

DC4

Device control character 4

Ctrl-T

21

15

NAK

Negative acknowledgment

Ctrl-U

22

16

SYN

Synchronous idle

Ctrl-V

23

17

ETB

End of transmission block

Ctrl-W

24

18

CAN

Cancel

Ctrl-X

25

19

EM

End of medium

Ctrl-Y

26

1A

SUB

Substitute/end of file

Ctrl-Z

27

1B

ESC

Escape

Ctrl-[

28

1C

FS

File separator

Ctrl-\

29

1D

GS

Group separator

Ctrl-]

30

1E

RS

Record separator

Ctrl-^

31

1F

US

Unit separator

Ctrl-_

32

20

SP

Space

Space

33

21

!

!

!

34

22

"

"

"

35

23

#

#

#

36

24

$

$

$

37

25

%

%

%

38

26

&

&

&

39

27

'

'

'

40

28

(

(

(

41

29

)

)

)

42

2A

*

*

*

43

2B

+

+

+

44

2C

,

,

,

45

2D

-

-

-

46

2E

.

.

.

47

2F

/

/

/

48

30

0

Zero

0

49

31

1

One

1

50

32

2

Two

2

51

33

3

Three

3

52

34

4

Four

4

53

35

5

Five

5

54

36

6

Six

6

55

37

7

Seven

7

56

38

8

Eight

8

57

39

9

Nine

9

58

3A

:

:

:

59

3B

;

;

;

60

3C

<

<

<

61

3D

=

=

=

62

3E

>

>

>

63

3F

?

?

?

64

40

@

@

@

65

41

A

A

A

66

42

B

B

B

67

43

C

C

C

68

44

D

D

D

69

45

E

E

E

70

46

F

F

F

71

47

G

G

G

72

48

H

H

H

73

49

I

I

I

74

4A

J

J

J

75

4B

K

K

K

76

4C

L

L

L

77

4D

M

M

M

78

4E

N

N

N

79

4F

O

O

O

80

50

P

P

P

81

51

Q

Q

Q

82

52

R

R

R

83

53

S

S

S

84

54

T

T

T

85

55

U

U

U

86

56

V

V

V

87

57

W

W

W

88

58

X

X

X

89

59

Y

Y

Y

90

5A

Z

Z

Z

91

5B

[

[

[

92

5C

\

\

\

93

5D

]

]

]

94

5E

^

^

^

95

5F

_

_

_

96

60

`

`

`

97

61

a

a

a

98

62

b

b

b

99

63

c

c

c

100

64

d

d

d

101

65

e

e

e

102

66

f

f

f

103

67

g

g

g

104

68

h

h

h

105

69

i

i

i

106

6A

j

j

j

107

6B

k

k

k

108

6C

l

l

l

109

6D

m

m

m

110

6E

n

n

n

111

6F

o

o

o

112

70

p

p

p

113

71

q

q

q

114

72

r

r

r

115

73

s

s

s

116

74

t

t

t

117

75

u

u

u

118

76

v

v

v

119

77

w

w

w

120

78

x

x

x

121

79

y

y

y

122

7A

z

z

z

123

7B

{

{

{

124

7C

|

|

|

125

7D

}

}

}

126

7E

~

Tilde

~

127

7F

DEL

Delete

Del