CALL SIGN PREFIXES
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Most radio stations are issued a call sign (also known as call letters) 
by the government that licenses or authorizes them. Call signs consist 
of a one or two letter/numeral prefix, a numeral, and an alphabetical 
suffix.
The different nations that authorize or license radio stations are 
assigned, by international agreement, a set of unique call sign prefixes 
to help identify where a station is located and under which national 
authority the station is operating. As a result, these prefixes can be a 
big aid in determining where a station you're hearing is located.

Call sign prefixes are not an infallible way to determine a station's 
location, however. A shipboard station will use the call letters 
assigned to it by its home nation regardless of where it is operating 
from. A nation's call sign allocations are also used for its territories 
and possessions, no matter how remote from the nation (for example, call 
signs in Guam use the U.S. allocations despite being distant from the 
landmass of the United States). Some stations in the former Soviet Union 
use their "traditional" call signs despite being located in a 
now-independent republic with different allocations. Many military 
stations use "tactical" call signs that follow no set allocations or 
rules. However, most ham radio, broadcasting, and maritime stations will 
have their call signs assigned in accordance with the list on this page.

Many call signs will not use all three characters of a prefix. For 
example, AA9XXX and AAA9XXX would both be valid call signs for a station 
licensed by the United States. 

Note that no official call signs use the QAA-QZZ block. These are 
reserved for international radiotelegraph "Q-signals." The most common 
Q-signals are found in our Radio Terms and Abbreviations section.

The allocations in the following list are in alphanumeric order. Click 
the letters in the table below to go to the allocation(s) beginning with 
the indicated letter(s) or number(s). To return to the table, click Top
 at the end of each allocation segment.
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AB-CD-EF-HI-KL-OP-STU-WXYZ1-3456789
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AAA-ALZ: United States
AMA-AOZ: Spain
APA-ASZ: Pakistan
ATA-AWZ: India
AXA-AXZ: Australia
AYA-AZZ: Argentina
A2A-A2Z: Botswana
A3A-A3Z: Tonga
A4A-A4Z: Oman
A5A-A5Z: Bhutan
A6A-A6Z: United Arab Emirates
A7A-A7Z: Qatar
A8A-A8Z: Liberia
A9A-A9Z: Bahrain

BAA-BZZ: China (BVA-BVZ used by Taiwan)

CAA-CEZ: Chile
CFA-CKZ: Canada
CLA-CMZ: Cuba
CNA-CNZ: Morocco
COA-COZ: Cuba
CPA-CPZ: Bolivia
CQA-CUZ: Portugal
CVA-CXA: Uruguay
CYA-CZX: Canada
C2A-C2Z: Nauru
C3A-C3Z: Andorra
C4A-C4Z: Cyprus
C5A-C5Z: The Gambia
C6A-C6Z: Bahamas
C7A-C7Z: World Meteorological Organization
C8A-C9Z: Mozambique

DAA-DRZ: Germany
DSA-DTZ: South Korea
DUA-DZZ: Philippines
D2A-D3Z: Angola
D4A-D4Z: Cape Verde Islands
D5A-D5Z: Liberia
D6A-D6Z: Comoros
D7A-D9Z: South Korea

EAA-EHZ: Spain
EIA-EJZ: Ireland
EKA-EKZ: Armenia
ELA-ELZ: Liberia
EMA-EOZ: Ukraine
EPA-EQZ: Iran
ERA-ERZ: Moldova
ESA-ESZ: Estonia
ETA-ETZ: Ethiopia
EUA-EWZ: Belarus
EXA-EXZ: Kyrgyzstan
EYA-EYZ: Tajikistan
EZA-EZZ: Turkmenistan
E2A-E2Z: Thailand
E3A-E3Z: Eritrea
E4A-E9Z: Not allocated

FAA-FZZ: France

GAA-GZZ: Great Britain

HAA-HAZ: Hungary
HBA-HBZ: Switzerland
HCA-HDZ: Ecuador
HEA-HEZ: Switzerland
HFA-HFZ: Poland
HGA-HGZ: Hungary
HHA-HHZ: Haiti
HIA-HIZ: Dominican Republic
HJA-HKZ: Colombia
HLA-HLZ: South Korea
HMA-HMZ: North Korea
HNA-HNZ: Iraq
HOA-HPZ: Panama
HQA-HRZ: Honduras
HSA-HSZ: Thailand
HTA-HTZ: Nicaragua
HUA-HUZ: El Salvador
HVA-HVZ: Vatican City
HWA-HWZ: France
HZA-HZZ: Saudi Arabia
H2A-H2Z: Cyprus
H3A-H3Z: Panama
H4A-H4Z: Solomon Islands
H6A-H7Z: Nicaragua
H8A-H9Z: Panama

IAA-IZZ: Italy

JAA-JSZ: Japan
JTA-JVZ: Mongolia
JWA-JXZ: Norway
JYA-JYZ: Jordan
J2A-J2Z: Djibouti
J3A-J3Z: Grenada
J4A-J4Z: Greece
J5A-J5Z: Guinea-Bissau
J6A-J6Z: St. Lucia
J7A-J7Z: Dominica
J8A-J8Z: St. Vincent
J9A-J9Z: Not allocated

KAA-KZZ: United States

LAA-LNZ: Norway
LOA-LWZ: Argentina
LXA-LXZ: Luxembourg
LYA-LYZ: Lithuania
LZA-LZZ: Bulgaria
L2A-L9Z: Argentina

MAA-MZZ: Great Britain

NAA-NZZ: United States

OAA-OCZ: Peru
ODA-ODZ: Lebanon
OEA-OEZ: Austria
OFA-OJZ: Finland
OKA-OLZ: Czech Republic
OMA-OMZ: Slovak Republic
ONA-OTZ: Belgium
OUA-OTZ: Denmark
O2A-O9Z: Not allocated

PAA-PIZ: Netherlands
PJA-PJZ: Netherlands Antilles
PKA-POZ: Indonesia
PPA-PYZ: Brazil
PZA-PZZ: Surinam
P2A-P2Z: Papua New Guinea
P3A-P3Z: Cyprus
P4A-P4Z: Aruba
P5A-P9Z: North Korea

RAA-RZZ: Russia

SAA-SMZ: Sweden
SNA-SRZ: Poland
SSA-SSM: Egypt
SSN-STZ: Sudan
SUA-SUZ: Egypt
SVA-SVZ: Greece
S2A-S3Z: Bangladesh
S5A-S5Z: Slovenia
S6A-S6Z: Singapore
S7A-S7Z: Seychelles
S8A-S8Z: South Africa
S9A-S9Z: Sao Tome e Principe

TAA-TCZ: Turkey
TDA-TDZ: Guatemala
TEA-TEZ: Costa Rica
TFA-TFZ: Iceland
TGA-TGZ: Guatemala
THA-THZ: France
TIA-TIZ: Costa Rica
TJA-TJZ: Cameroon
TKA-TKZ: France
TLA-TLZ: Central African Republic
TMA-TMZ: France
TNA-TNZ: Congo
TOA-TQZ: France
TRA-TRZ: Gabon
TSA-TSZ: Tunisia
TTA-TTZ: Chad
TUA-TUZ: Cote d'Ivoire
TVA-TXZ: France
TYA-TYZ: Benin
TZA-TZZ: Mali
T2A-T2Z: Tuvalu
T3A-T3Z: Kiribati
T4A-T4Z: Cuba
T5A-T5Z: Somalia
T6A-T6Z: Afghanistan
T7A-T7Z: San Marino
T8A-T8Z: Palau
T9A-T9Z: Bosnia-Herzegovina

UAA-UIZ: Russia
UJA-UMZ: Uzbekistan
UNA-UQZ: Kazakhstan
URA-UZZ: Ukraine

VAA-VGZ: Canada
VHA-VNZ: Australia
VOA-VOZ: Canada
VPA-VSZ: Great Britain
VTA-VWZ: India
VXA-VYZ: Canada
VZA-VZZ: Australia
V2A-V2Z: Antigua and Barbuda
V3A-V3Z: Belize
V4A-V4Z: St. Kitts and Nevis
V5A-V5Z: Namibia
V6A-V6Z: Micronesia
V7A-V7Z: Marshall Islands
V8A-V8Z: Brunei
V9A-V9Z: Not allocated

WAA-WZZ: United States

XAA-XIZ: Mexico
XJA-XOZ: Canada
XPA-XPZ: Denmark
XQA-XRZ: Chile
XSA-XSZ: China
XTA-XTZ: Burkina Faso
XUA-XUZ: Cambodia
XVA-XVZ: Vietnam
XWA-XWZ: Laos
XXA-XXZ: Portugal
XYA-XZZ: Myanmar
X2A-X9Z: Not allocated

YAA-YAZ: Afghanistan
YBA-YHZ: Indonesia
YIA-YIZ: Iraq
YJA-YJZ: Vanuatu
YKA-YKZ: Syria
YLA-YLZ: Latvia
YMA-YMZ: Turkey
YNA-YNZ: Nicaragua
YOA-YRZ: Romania
YSA-YSZ: El Salvador
YTA-YUZ: Yugoslavia
YVA-YVZ: Venezuela
YZA-YZZ: Yugoslavia
Y2A-Y9Z: Germany

ZAA-ZAZ: Albania
ZBA-ZJZ: Great Britain
ZKA-ZMZ: New Zealand
ZNA-ZOZ: Great Britain
ZPA-ZPZ: Paraguay
ZQA-ZQZ: Great Britain
ZRA-ZUZ: South Africa
ZVA-ZVZ: Brazil
Z2A-Z2Z: Zimbabwe
Z2A-Z3Z: Macedonia
Z4A-Z9Z: Not allocated

1AA-1ZZ: Not allocated; unofficially used in disputed territories
2AA-2ZZ: Great Britain
3AA-3AZ: Monaco
3BA-3BZ: Mauritius
3CA-3CZ: Equatorial Guinea
3DA-3DM: Swaziland
3DN-3DZ: Fiji
3EA-3FZ: Panama
3GA-3GZ: Chile
3HA-3UZ: China
3VA-3VZ: Tunisia
3WA-3WZ: Vietnam
3XA-3XZ: Guinea
3YA-3YZ: Norway
3ZA-3ZZ: Poland
4AA-4CZ: Mexico
4DA-4IZ: Philippines
4JA-4KZ: Azerbaijan
4LA-4LZ: Georgia
4MA-4MZ: Venezuela
4NA-4OZ: Yugoslavia
4PA-4SZ: Sri Lanka
4TA-4TZ: Peru
4UA-4UZ: United Nations
4VA-4VZ: Haiti
4WA-4WZ: Not allocated
4YA-4YZ: International Civil Aviation Organization
4XA-4ZZ: Israel
5AA-5AZ: Libya
5BA-5BZ: Cyprus
5CA-5GZ: Morocco
5HA-5IZ: Tanzania
5JA-5KZ: Colombia
5LA-5MZ: Liberia
5NA-5OZ: Nigeria
5PA-5QZ: Denmark
5RA-5SZ: Madagascar
5TA-5TZ: Mauritania
5UA-5UZ: Niger
5VA-5VZ: Togo
5WA-5WZ: Western Samoa
5XA-5XZ: Uganda
5YA-5ZZ: Kenya
6AA-6BZ: Egypt
6CA-6CZ: Syria
6DA-6JZ: Mexico
6KA-6NZ: South Korea
6OA-6OZ: Somalia
6PA-6SZ: Pakistan
6TA-6UZ: Sudan
6VA-6WZ: Senegal
6XA-6XZ: Madagascar
6YA-6YZ: Jamaica
6ZA-6ZZ: Liberia
7AA-7IZ: Indonesia
7JA-7NZ: Japan
7OA-7OZ: Yemen
7PA-7PZ: Lesotho
7QA-7QZ: Malawi
7RA-7RZ: Algeria
7SA-7SZ: Sweden
7TA-7YZ: Algeria
7ZA-7ZZ: Saudi Arabia
8AA-8IZ: Indonesia
8JA-8NZ: Japan
8OA-8OZ: Botswana
8PA-8PZ: Barbados
8QA-8QZ: Maldives
8RA-8RZ: Guyana
8SA-8SZ: Sweden
8TA-8YZ: India
8ZA-8ZZ: Saudi Arabia
9AA-9AZ: Croatia
9BA-9DZ: Iran
9EA-9FZ: Ethiopia
9GA-9GZ: Ghana
9HA-9HZ: Malta
9IA-9JZ: Zambia
9KA-9KZ: Kuwait
9LA-9LZ: Sierra Leone
9MA-9MZ: Malaysia
9NA-9NZ: Nepal
9OA-9TZ: Zaire
9UA-9UZ: Burundi
9VA-9VZ: Singapore
9WA-9WZ: Malaysia
9XA-9XZ: Rwanda
9YA-9ZZ: Trinidad and Tobago
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