ITU prefix/Grid chart

Template:Main article

1st ltr/num →
2nd ltr/num ↓
A
B
C
D
E
F
G
H
I
A
United States of America
People's Republic of China Chile Germany Spain France United Kingdom Hungary Italy
B
Switzerland
(HB0 prefix allocated to Liechtenstein)
C
Ecuador
D
E
Switzerland
F
Canada Poland
G
Hungary
H
Haiti
I
Ireland Dominican Republic
J
Colombia
K
Armenia
L
Cuba
Liberia
South Korea
1st ltr/num →
2nd ltr/num ↕
A
B
C
D
E
F
G
H
I
M
Spain
People's Republic of China Cuba
Germany Ukraine France United Kingdom North Korea
Italy
N
Morocco
Iraq
O
Cuba
Panama
P
Pakistan
Bolivia
Iran
Q
Portugal Honduras
R
Moldova
S
South Korea Estonia
Thailand
T
India
Ethiopia
Nicaragua
U
Philippines Belarus El Salvador
V
Uruguay Vatican City State
W
France
X
Australia
Kyrgyzstan
1st ltr/num →
2nd ltr/num ↕
A
B
C
D
E
F
G
H
I
Y
Argentina
People's Republic of China Canada Philippines Tajikistan
France United Kingdom France
Italy
Z
Turkmenistan
Saudi Arabia
0
Not used
Not used Not used
Not used
Not used
1
2
Botswana
Nauru
Angola
Thailand
Cyprus
3
Tonga
Andorra
Eritrea
Panama
4
Oman
Cyprus
Cape Verde
Palestinian Authority 2
Solomon Islands
5
Bhutan
The Gambia
Liberia
Cook Islands Not used
6
United Arab Emirates
Bahamas
Comoros
Not used Nicaragua
7
Qatar
World Meteorological Organization 1
South Korea Nicaragua
8
Liberia
Mozambique
Panama
9
Bahrain
Panama



1st ltr/num →
2nd ltr/num ↓
J
K
L
M
N
O
P
Q
R
A
Japan United States of America Norway United Kingdom United States of America Peru Netherlands Not used 3 Russia
B
C
D
Lebanon
E
Austria
F
Finland
G
H
I
J
Netherlands Antilles
K
Czech Republic
Indonesia
L
1st ltr/num →
2nd ltr/num ↕
J
K
L
M
N
O
P Q
R
M
Japan United States of America Norway United Kingdom United States of America Slovakia
Indonesia Not used 3 Russia
N
Belgium
O
Argentina
P
Brazil
Q
R
S
T
Mongolia
U
Denmark
V
W
Norway
X
Luxembourg
1st ltr/num →
2nd ltr/num ↕
J
K
L
M
N
O
P Q
R
Y
Jordan
United States of America Lithuania
United Kingdom United States of America Denmark Brazil
Not used 3 Russia
Z
Indonesia
Bulgaria
Suriname
0
Not used Not used Not used
Not used
1
2
Djibouti
Argentina Papua New Guinea
3
Grenada
Cyprus
4
Greece
Aruba
5
Guinea-Bissau
North Korea
6
Saint Lucia
7
Dominica
8
Saint Vincent and the Grenadines
9
Not used



1st ltr/num →
2nd ltr/num ↓
S
T
U
V
W
X
Y
Z
0
A
Sweden Turkey
Russia
Canada United States of America Mexico Afghanistan
Albania
Not used
B
Indonesia United Kingdom
C
D
Guatemala
E
Costa Rica
F
Iceland
G
Guatemala
H
France
Australia
I
Costa Rica
Iraq
J
Cameroon
Uzbekistan Canada Vanuatu
K
France
Syria
New Zealand
L
Central African Republic
Latvia
1st ltr/num →
2nd ltr/num ↕
S
T
U V
W
X
Y
Z
0
M
Sweden
France
Uzbekistan
Australia United States of America Canada Turkey
New Zealand
Not used
N
Poland Republic of the Congo
Kazakhstan Nicaragua
United Kingdom
O
France
Canada
Romania
P
United Kingdom
Denmark
Paraguay
Q
Chile United Kingdom
R
Gabon
Ukraine Hong Kong
South Africa
S
Egypt (A-M)
Sudan (N-Z) 4
Tunisia
United Kingdom
People's Republic of China
El Salvador
T
Sudan
Chad
India Burkina Faso
Serbia and Montenegro
U
Egypt
Côte d'Ivoire
Cambodia
V
Greece
France
Viet Nam
Venezuela
Brazil
W
Laos
X
Canada
Not used
1st ltr/num →
2nd ltr/num ↕
S
T
U
V
W
X
Y
Z
0
Y
Greece Benin
Ukraine
Canada
United States of America Myanmar
Venezuela
Brazil Not used
Z
Mali
Australia
Serbia and Montenegro
0
Not used
Not used
Not used
Not used
Not used
Not used
Not used
1
2
Bangladesh
Tuvalu
Antigua and Barbuda
Germany
Zimbabwe
3
Kiribati
Belize
Macedonia
4
Not used
Cuba
Saint Kitts and Nevis
Not used
5
Slovenia
Somalia
Namibia
6
Singapore
Afghanistan
Federated States of Micronesia
7
Seychelles
San Marino
Marshall Islands
8
South Africa
Palau
Brunei Darussalam
9
São Tomé and Príncipe
Bosnia and Herzegovina
Not used



1st ltr/num →
2nd ltr/num ↓
1
2
3
4
5
6
7
8 9
A
Not used United Kingdom Monaco
Mexico Libya
Egypt
Indonesia
Indonesia Croatia
B
Mauritius
Cyprus
Iran
C
Equatorial Guinea
Morocco Syria
D
Swaziland (A-M)
Fiji (N-Z) 4
Philippines
Mexico
E
Panama
Ethiopia
F
G
Chile
Ghana
H
People's Republic of China
Tanzania Malta
I
Zambia
J
Azerbaijan
Colombia Japan Japan
K
South Korea Kuwait
L
Georgia
Liberia
Sierra Leone
1st ltr/num →
2nd ltr/num ↕
1
2
3
4
5
6
7
8
9
M
Not used United Kingdom People's Republic of China Venezuela
Liberia
South Korea
Japan Japan Malaysia
N
Serbia and Montenegro Nigeria
Nepal
O
Somalia
Yemen
Botswana
Democratic Republic of the Congo
P
Sri Lanka
Denmark Pakistan Lesotho
Barbados
Q
Malawi
Maldives
R
Madagascar Algeria
Guyana
S
Sweden
Sweden
T
Peru
Mauritania
Sudan Algeria India
U
United Nations 1
Niger
Burundi
V
Tunisia
Haiti
Togo
Senegal
Singapore
W
Viet Nam
Timor-Leste
Samoa
Malaysia
X
Guinea
Israel
Uganda
Madagascar
Rwanda
1st ltr/num →
2nd ltr/num ↕
1
2
3
4
5
6
7
8
9
Y
Not used United Kingdom Norway
International Civil Aviation Organization 1
Kenya Jamaica
Algeria
India
Trinidad and Tobago
Z
Poland
Israel
Liberia
Saudi Arabia
Saudi Arabia
0
Not used
Not used Not used Not used Not used Not used Not used
1
2
3
4
5
6
7
8
9

1 Series allocated to an international organization.

2 Provisional allocation in accordance with No. S19.33: (S19.33 Between radiocommunication conferences, the Secretary-General is authorized to deal with questions relating to changes in the allocation of series of call signs, on a provisional basis, and subject to confirmation by the following conference).

3 Three letter codes beginning with Q are for communication abbreviations, the Q Codes and not used as callsign prefixes.

4 Half series allocation.

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