ITU prefix

The International Telecommunication Union (ITU) allocates call sign prefixes for radio and television stations of all types. They also form the basis for, but do not exactly match, aircraft registration identifiers. These prefixes are agreed upon internationally, and are a form of country code. A call sign can be any number of letters and numerals but each country must only use call signs that begin with the characters allocated for use in that country.

A few countries do not fully comply with these rules. Australian broadcast stations officially have—but do not use—the VL prefix, and Canada uses Chile's CB for its own Canadian Broadcasting Corporation stations. This is through a special agreement[1] with the government of Chile, which is officially assigned the CB prefix.

With regard to the second and/or third letters in the prefixes in the list below, if the country in question is allocated all callsigns with A to Z in that position, then that country can also use call signs with the digits 0 to 9 in that position. For example, the United States is assigned KAKZ, and therefore can also use prefixes like KW0 or K1.

Many large countries in turn have internal rules on how and where specific subsets of their callsigns can be used (such as Mexico's XE for AM and XH for FM radio and television broadcasting), which are not covered here.

Unallocated and unavailable call sign prefixes

Further information: Non-ITU prefix

Unallocated: The following call sign prefixes are available for future allocation by the ITU. (x represents any letter; n represents any digit from 29.)

(* Indicates a prefix that has recently been returned to the ITU.)

Unavailable: Under present ITU guidelines the following call sign prefixes shall not be allocated .[2] They are sometimes used unofficially - such as amateur radio operators operating in a disputed territory or in a nation state that has no official prefix (e.g. S0 in Western Sahara or station 1A0 at Knights of Malta headquarters in Rome or station 1L in Liberland ). (x represents any letter; n represents any digit from 29.)

Table of Allocation of International Call Sign Series

Linked country codes are from ISO 3166-1.

       Series allocated to an international organization.
       Provisional allocation in accordance with No. 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."
       Half series allocation. The first country listed uses all callsigns beginning with the listed prefix followed by A-M, and the second country listed uses N-Z.

Organization Call signs allocated
International Civil Aviation Organization 4Y
United Nations 4U
World Meteorological Organization C7
Call Sign Series Allocated to
A
AAAL United States
AMAO Spain
APAS Pakistan
ATAW India
AX Australia
AYAZ Argentina
A2 Botswana
A3 Tonga
A4 Oman
A5 Bhutan
A6 United Arab Emirates
A7 Qatar
A8 Liberia
A9 Bahrain
B
B People's Republic of China
B (BM-BQ, BU-BX) Republic of China (Taiwan)
C
CACE Chile
CFCK Canada
CLCM Cuba
CN Morocco
CO Cuba
CP Bolivia
CQCU Portugal
CVCX Uruguay
CYCZ Canada
C2 Nauru
C3 Andorra
C4 Cyprus
C5 The Gambia
C6 Bahamas
C7 World Meteorological Organization[Note 1]
C8C9 Mozambique
D
DADR Germany
DSDT South Korea
DUDZ Philippines
D2D3 Angola
D4 Cape Verde
D5 Liberia
D6 Comoros
D7D9 South Korea
E
EAEH Spain
EIEJ Ireland
EK Armenia
EL Liberia
EMEO Ukraine
EPEQ Iran
ER Moldova
ES Estonia
ET Ethiopia
EUEW Belarus
EX Kyrgyzstan
EY Tajikistan
EZ Turkmenistan
E2 Thailand
E3 Eritrea
E4 Palestinian Authority
E5 Cook Islands[Note 2]
E6 Niue
E7 Bosnia and Herzegovina[Note 2]
F
F France (and its Overseas departments/territories)
G
G United Kingdom (and its overseas territories/Crown dependencies)
H
HA Hungary
HB Switzerland
HB (HB0, HB3Y, HBL) Liechtenstein (uses prefixes allocated to Switzerland)
HCHD Ecuador
HE Switzerland
HF Poland
HG Hungary
HH Haiti
HI Dominican Republic
HJHK Colombia
HL South Korea
HM North Korea
HN Iraq
HOHP Panama
HQHR Honduras
HS Thailand
HT Nicaragua
HU El Salvador
HV Vatican City
HWHY France (and its Overseas departments/territories)
HZ Saudi Arabia
H2 Cyprus
H3 Panama
H4 Solomon Islands
H6H7 Nicaragua
H8H9 Panama
I
I Italy
J
JAJS Japan
JTJV Mongolia
JWJX Norway
JY Jordan
JZ Indonesia
J2 Djibouti
J3 Grenada
J4 Greece
J5 Guinea-Bissau
J6 Saint Lucia
J7 Dominica
J8 Saint Vincent and the Grenadines
K
K United States
L
LALN Norway
LOLW Argentina
LX Luxembourg
LY Lithuania
LZ Bulgaria
L2L9 Argentina
M
M United Kingdom (and its overseas territories/Crown dependencies)
N
N United States
O
OAOC Peru
OD Lebanon
OE Austria
OFOJ Finland
OKOL Czech Republic
OM Slovakia
ONOT Belgium
OUOZ Denmark
P
PAPI Netherlands
PJ Netherlands Former Netherlands Antilles
PKPO Indonesia
PPPY Brazil
PZ Suriname
P2 Papua New Guinea
P3 Cyprus
P4 Aruba
P5P9 North Korea
Q
There are no prefixes beginning with Q[Note 3]
R
R Russia
S
SASM Sweden
SNSR Poland
SSASSM Egypt[Note 4]
SSNSTZ Sudan[Note 4]
SU Egypt
SVSZ Greece
S2S3 Bangladesh
S5 Slovenia
S6 Singapore
S7 Seychelles
S8 South Africa
S9 São Tomé and Príncipe
T
TATC Turkey
TD Guatemala
TE Costa Rica
TF Iceland
TG Guatemala
TH France (and its Overseas departments/territories)
TI Costa Rica
TJ Cameroon
TK France (and its Overseas departments/territories)
TL Central African Republic
TM France (and its Overseas departments/territories)
TN Congo
TOTQ France (and its Overseas departments/territories)
TR Gabon
TS Tunisia
TT Chad
TU Ivory Coast
TVTX France (and its Overseas departments/territories)
TY Benin
TZ Mali
T2 Tuvalu
T3 Kiribati
T4 Cuba
T5 Somalia
T6 Afghanistan
T7 San Marino
T8 Palau
T9 (T9 returned to the ITU on 7 August 2007. Bosnia and Herzegovina is now E7)
U
UAUI Russia
UJUM Uzbekistan
UNUQ Kazakhstan
URUZ Ukraine
V
VAVG Canada
VHVN Australia
VO Canada (formerly Dominion of Newfoundland)
VPVQ United Kingdom (and its overseas territories/Crown dependencies)
VR Hong Kong (Special Administrative Region of the People's Republic of China)
VS United Kingdom
VTVW India
VXVY Canada
VZ Australia
V2 Antigua and Barbuda
V3 Belize
V4 Saint Kitts and Nevis
V5 Namibia
V6 Micronesia, Federated States of
V7 Marshall Islands
V8 Brunei
W
W United States
X
XAXI Mexico
XJXO Canada
XP Denmark
XQXR Chile
XS People's Republic of China
XT Burkina Faso
XU Cambodia
XV Vietnam
XW Laos
XX Macao (Special Administrative Region of the People's Republic of China) [Note 2]
XYXZ Burma
Y
YA Afghanistan
YBYH Indonesia
YI Iraq
YJ Vanuatu
YK Syria
YL Latvia
YM Turkey
YN Nicaragua
YOYR Romania
YS El Salvador
YTYU Serbia[Note 2]
YVYY Venezuela (Republic of)
Y2Y9 Germany
Z
ZA Albania
ZBZJ United Kingdom (and its overseas territories/Crown dependencies)
ZKZM New Zealand
ZNZO United Kingdom (and its overseas territories/Crown dependencies)
ZP Paraguay
ZQ United Kingdom (and its overseas territories/Crown dependencies)
ZRZU South Africa
ZVZZ Brazil
Z2 Zimbabwe
Z3 Republic of Macedonia
Z8 South Sudan
2
2 United Kingdom (and its overseas territories/Crown dependencies)
3
3A Monaco
3B Mauritius
3C Equatorial Guinea
3D-A3D-M Swaziland[Note 4]
3D-N3D-Z Fiji[Note 4]
3E3F Panama
3G Chile
3H3U People's Republic of China
3V Tunisia
3W Vietnam
3X Guinea
3Y Norway
3Z Poland
4
4A4C Mexico
4D4I Philippines
4J4K Azerbaijan
4L Georgia
4M Venezuela
4O Montenegro[Note 2]
4P4S Sri Lanka
4T Peru
4U United Nations[Note 1]
4V Haiti
4W East Timor
4X Israel
4Y International Civil Aviation Organization[Note 1]
4Z Israel
5
5A Libya
5B Cyprus
5C5G Morocco
5H5I Tanzania
5J5K Colombia
5L5M Liberia
5N5O Nigeria
5P5Q Denmark
5R5S Madagascar
5T Mauritania
5U Niger
5V Togo
5W Western Samoa
5X Uganda
5Y5Z Kenya
6
6A6B Egypt
6C Syria
6D6J Mexico
6K6N South Korea
6O Somalia
6P6S Pakistan
6T6U Sudan
6V6W Senegal
6X Madagascar
6Y Jamaica
6Z Liberia
7
7A7I Indonesia
7J7N Japan
7O Yemen
7P Lesotho
7Q Malawi
7R Algeria
7S Sweden
7T7Y Algeria
7Z Saudi Arabia
8
8A8I Indonesia
8J8N Japan
8O Botswana
8P Barbados
8Q Maldives
8R Guyana
8S Sweden
8T8Y India
8Z Saudi Arabia
9
9A Croatia
9B9D Iran
9E9F Ethiopia
9G Ghana
9H Malta
9I9J Zambia
9K Kuwait
9L Sierra Leone
9M Malaysia
9N Nepal
9O9T Democratic Republic of the Congo
9U Burundi
9V Singapore
9W Malaysia
9X Rwanda
9Y9Z Trinidad and Tobago

See also

Notes

  1. 1 2 3 Series allocated to an international organization.
  2. 1 2 3 4 5 Provisional allocation in accordance with No. 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 (Q codes) and therefore are not used as callsign prefixes to prevent confusion.
  4. 1 2 3 4 Half-series allocation.

References

External links

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