Click on any underlined callsign prefix to receive a more detailed breakdown of allocations (mainly amateur) within that block.
The 3 letter ISO country code (as used in amateur packet radio but NOT on the internet) is also shown in brackets.
| Prefix | Country |
|---|---|
| ?? | Palestine and Gaza Strip (??.AS) (Allocation due 1997) |
| AA-AL | United States of America (USA.NA) |
| AM-AO | Spain (ESP.EU) |
| AP-AS | Pakistan (PAK.AS) |
| AT-AW | India (IND.AS) |
| AX | Australia (AUS.OC) |
| AY-AZ | Argentina (ARG.SA) |
| A0 | Unallocated |
| A1 | Abu Ail and Jabal at Tair (??.AS) |
| A2 | Botswana (BWA.AF) |
| A3 | Tonga (TON.OC) |
| A4 | Oman (OMN.AS) |
| A5 | Bhutan (BTN.AS) |
| A6 | United Arab Emirates (ARE.AS) |
| A7 | Qatar (QAT.AS) |
| A8 | Liberia (LBR.AF) |
| A9 | Bahrain (BHR.AS) |
| B | China (CHN.AS) |
| BV | Taiwan (TWN.AS) |
| CA-CE | Chile (CHL.SA) |
| CF-CK | Canada (CAN.NA) |
| CL-CM | Cuba (CUB.NA) |
| CN | Morocco (MAR.AF) |
| CO | Cuba (CUB.NA) |
| CP | Bolivia (BOL.SA) |
| CQ-CU | Portugal (PRT.EU) |
| CV-CX | Uruguay (URY.SA) |
| CY-CZ | Canada (CAN.NA) |
| C0 | Unallocated |
| C1 | Bougainville (unofficial prefix) (??.OC) |
| C2 | Nauru (NRU.OC) |
| C3 | Andorra (AND.EU) |
| C4 | Cyprus (CYP.EU) |
| C5 | Gambia (GMB.AF) |
| C6 | Bahamas (BHS.NA) |
| C7 | World Meteorological Organisation |
| C8-C9 | Mozambique (MOZ.AF) |
| DA-DR | Germany (DEU.EU) |
| DS-DT | South Korea (KDR.AS) |
| DU-DZ | Philippines (PHL.OC) |
| D0-D1 | Unallocated |
| D2-D3 | Angola (AGO.AF) |
| D4 | Cape Verde (CPV.AF) |
| D5 | Liberia (LBR.AF) |
| D6 | Comoros (COM.AF) |
| D7-D9 | South Korea (KDR.AS) |
| EA-EH | Spain (ESP.EU) |
| EI-EJ | Ireland (IRL.EU) |
| EK | Armenia (ARM.AS) |
| EL | Liberia (LBR.AF) |
| EM | Ukraine (UKR.EU) |
| EN | Unknown |
| EO | Ukraine (UKR.EU) |
| EP-EQ | Iran (IRN.AS) |
| ER | Moldova (MDA.EU) |
| ES | Estonia (EST.EU) |
| ET | Ethiopia (ETH.AF) |
| EU-EW | Belarus (BLR.EU) |
| EX | Kyrgyzstan (KGZ.AS) |
| EY | Tajikistan (TJK.AS) |
| EZ | Turkmenistan (TKM.AS) |
| E0-E1 | Unallocated |
| E2 | Thailand (THA.AS) |
| E3 | Eritrea (??.AF) |
| E4-E9 | Unallocated |
| F | France (FRA.EU) |
| FG | Guadeloupe (GLP.NA) |
| FH | Mayotte (MYT.AF) |
| FJ | French Saint Martin |
| FK | New Caledonia (NCL.OC) |
| FM | Martinique (MTQ.NA) |
| FO | French Polynesia and Clipperton Islands (PYF.OC) |
| FO0 | Clipperton Island (PYF.OC) |
| FP | St Pierre and Miquelon (SPM.NA) |
| FR | Reunion (REU.AF) |
| FR7 | Tromelin Is and Glorieuses Is |
| FS | French Saint Martin |
| FW | Wallis and Futuna Islands (WLF.OC) |
| FY | French Guiana and Inini (GUF.SA) |
| G | United Kingdom (GBR.EU) |
| HA | Hungary (HUN.EU) |
| HB | Switzerland (CHE.EU) |
| HC-HD | Ecuador (ECU.SA) |
| HE | Switzerland (CHE.EU) |
| HF | Poland (POL.EU) |
| HG | Hungary (HUN.EU) |
| HH | Haiti (HTI.NA) |
| HI | Dominican Republic (DOM.NA) |
| HJ-HK | Colombia (COL.SA) |
| HL | South Korea (KDR.AS) |
| HM | North Korea (PRK.AS) |
| HN | Iraq (IRQ.AS) |
| HO-HP | Panama (PAN.NA) |
| HQ-HR | Honduras (HND.NA) |
| HS | Thailand (THA.AS) |
| HT | Nicaragua (NIC.NA) |
| HU | El Salvador (SLV.NA) |
| HV | Vatican City (VAT.EU) |
| HW-HY | France (FRA.EU) |
| HZ | Saudi Arabia (SAU.AS) |
| H0-H1 | Unallocated |
| H2 | Cyprus (CYP.EU) |
| H3 | Panama (PAN.NA) |
| H4 | Solomon Islands (SLB.OC) |
| H5 | South Africa (ZAF.AF) |
| H6-H7 | Nicaragua (NIC.NA) |
| H8-H9 | Panama (PAN.NA) |
| I | Italy (ITA.EU) |
| JA-JS | Japan (JPN.AS) |
| JT-JV | Mongolia (MNG.AS) |
| JW-JX | Norway (NOR.EU) |
| JY | Jordan (JOR.AS) |
| JZ | Indonesia (IDN.OC) |
| J0-J1 | Unallocated |
| J2 | Djibouti (DJI.AF) |
| J3 | Grenada and Dependencies (GRD.NA) |
| J4 | Greece (GRC.EU) |
| J5 | Guinea-Bissau (GNB.AF) |
| J6 | St Lucia (LCA.NA) |
| J7 | Dominica (DMA.NA) |
| J8 | St Vincent and Dependencies (VCT.NA) |
| J9 | Unallocated |
| K | United States of America (USA.NA) |
| LA-LN | Norway (NOR.EU) |
| LO-LW | Argentina (ARG.SA) |
| LX | Luxembourg (LUX.EU) |
| LY | Lithuania (LTU.EU) |
| LZ | Bulgaria (BFR.EU) |
| L0-L1 | Unallocated |
| L2-L9 | Argentina (ARG.SA) |
| M | United Kingdom (GBR.EU) |
| N | United States of America (USA.NA) |
| OA-OC | Peru (PER.SA) |
| OD | Lebanon (LBN.AS) |
| OE | Austria (AUT.EU) |
| OF-OJ | Finland (FIN.EU) |
| OK-OL | Czech Republic (CZE.EU) |
| OM | Slovakia (SVK.EU) |
| ON-OT | Belgium (BEL.EU) |
| OU-OW | Denmark (DEN.EU) |
| OX | Greenland (GRL.NA) |
| OY | Faroe Islands (FRO.EU) |
| OZ | Denmark (DEN.EU) |
| PA-PI | Netherlands (NLD.EU) |
| PJ | Netherlands Antilles (ANT.SA) |
| PK-PO | Indonesia (IDN.OC) |
| PP-PY | Brazil (BRA.SA) |
| PZ | Surinam (SUR.SA) |
| P2 | Papua New Guinea (PNG.OC) |
| P3 | Cyprus (CYP.EU) |
| P4 | Netherlands Antilles (ANT.SA) |
| P5-P9 | North Korea (PRK.AS) |
| R | Russia (RUS.EU) |
| SA-SM | Sweden (SWE.EU) |
| SN-SR | Poland (POL.EU) |
| SS-ST | Sudan (SDN.AF) |
| SU | Egypt (EGY.AF) |
| SV-SZ | Greece (GRC.EU) |
| S0 | Saharui Arab Democratic Republic (ESH.AF) |
| S1 | Unallocated (used unofficially by Republic of Sealand) |
| S2-S3 | Bangladesh (BGD.AS) |
| S4 | South Africa (ZAF.AF) |
| S5 | Slovenia (SVN.EU) |
| S6 | Singapore (SGP.AS) |
| S7 | Seychelles (SYC.AF) |
| S8 | South Africa (ZAF.AF) |
| S9 | Sao Tome et Principe (STP.AF) |
| TA-TC | Turkey (TUR.AS) |
| TD | Guatemala (GTM.NA) |
| TE | Costa Rica (CRI.NA) |
| TF | Iceland (ISL.EU) |
| TG | Guatemala (GTM.NA) |
| TH | France (FRA.EU) |
| TI | Costa Rica (CRI.NA) |
| TJ | Cameroun (CMR.AF) |
| TK | France (FRA.EU) |
| TL | Central African Republic (CAF.AF) |
| TM | France (FRA.EU) |
| TN | Congo (COG.AF) |
| TO-TQ | France (FRA.EU) |
| TR | Gabon (GAB.AF) |
| TS | Tunisia (TUN.AF) |
| TT | Chad (TCD.AF) |
| TU | Ivory Coast (CIV.AF) |
| TV-TX | France (FRA.EU) |
| TY | Benin (BEN.AF) |
| TZ | Mali (MLI.AF) |
| T0-T1 | Unallocated |
| T2 | Tuvalu (TUV.OC) |
| T3 | Kiribati (KIR.OC) |
| T4 | Cuba (CUB.NA) |
| T5 | Somalia (SOM.AF) |
| T6 | Afghanistan (AFG.AS) |
| T7 | San Marino (SMR.EU) |
| T9 | Bosnia-Herzegovina (BIH.EU) |
| UA-UI | Russia (RUS.EU) |
| UJ-UM | Uzbekistan (UZB.AS) |
| UN-UQ | Kazakhstan (KAZ.AS) |
| UR-UZ | Ukraine (UKR.EU) |
| U0-U9 | Unallocated |
| VA-VG | Canada (CAN.NA) |
| VH-VN | Australia (AUS.OC) |
| VO | Canada (CAN.NA) |
| VP | Bermuda (??.NA) |
| VQ | United Kingdom (Overseas Territories) |
| VR | China (Hong Kong) |
| VS | United Kingdom (Overseas Territories) |
| VT-VW | India (IND.AS) |
| VX-VY | Canada (CAN.NA) |
| VZ | Australia (AUS.OC) |
| V0-V1 | Unallocated |
| V2 | Antigua (ATG.NA) |
| V3 | Belize (BLZ.SA) |
| V4 | St Kitts and Nevis (KNA.NA) |
| V5 | Namibia (NAM.AF) |
| V6 | Federated States of Micronesia (FSM.OC) |
| V7 | Marshall Islands (MHL.OC) |
| V8 | Brunei (BRN.AS) |
| V9 | South Africa (ZAF.AF) |
| W | United States of America (USA.NA) |
| XA-XI | Mexico (MEX.NA) |
| XJ-XO | Canada (CAN.NA) |
| XP | Greenland (GRL.NA) |
| XQ-XR | Chile (CHL.SA) |
| XS | China (CHN.AS) |
| XT | Burkina-Faso (HVO.AF) |
| XU | Cambodia (KHM.AS) |
| XV | Vietnam (VNM.AS) |
| XW | Laos (LAO.AS) |
| XX | Portugal (PRT.EU) |
| XY-XZ | Myanmar (BUR.AS) |
| X0-X4 | Unallocated |
| X5 | Belau and Micronesia (??.OC) |
| X6-X9 | Unallocated |
| YA | Afghanistan (AFG.AS) |
| YB-YH | Indonesia (IDN.OC) |
| YI | Iraq (IRQ.AS) |
| YJ | Vanuatu (VUT.OC) |
| YK | Syria (SYR.AS) |
| YL | Latvia (LVA.EU) |
| YM | Turkey (TUR.AS) |
| YN | Nicaragua (NIC.NA) |
| YO-YR | Romania (ROM.EU) |
| YS | El Salvador (SLV.NA) |
| YT-YU | Yugoslavia (YUG.EU) |
| YV-YY | Venezuela (VEN.SA) |
| YY-Yz | Yugoslavia (YUG.EU) |
| Y0-Y9 | Unallocated |
| ZA | Albania (ALB.EU) |
| ZB-ZE | United Kingdom (Overseas Territories) |
| ZF | Cayman Islands (CYM.NA) |
| ZG-ZJ | United Kingdom (Overseas Territories) |
| ZK-ZM | New Zealand (NZL.OC) |
| ZN-ZO | United Kingdom (Overseas Territories) |
| ZP | Paraguay (PRY.SA) |
| ZQ | United Kingdom (Overseas Territories) |
| ZR-ZU | South Africa (ZAF.AF) |
| ZV-ZZ | Brazil (BRA.SA) |
| Z0-Z1 | Unallocated |
| Z2 | Zimbabwe (ZWE.AF) |
| Z3 | Macedonia (??.EU) |
| Z4-Z9 | Unallocated |
| 1A0 | Rome - Sovereign Military Order of Malta (??.EU) |
| 1B | Unallocated (used unofficially by Turkish zone of Cyprus) |
| 1C-1R | Unallocated |
| 1S | Spratley Islands (??.AS) |
| 1T-1Y | Unallocated |
| 1Z | Myanmar (BUR.AS) |
| 2 | United Kingdom (GBR.EU) |
| 3A | Monaco (MCO.EU) |
| 3B | Mauritius (MUS.AF) |
| 3C | Equatorial Guinea (GNQ.AF) |
| 3C0 | Pagalu and Annobon Island |
| 3DA | Swaziland (SWX.AF) |
| 3D2 | Fiji (FJI.OC) |
| 3D6 | Swaziland (SWX.AF) |
| 3E-3F | Panama (PAN.NA) |
| 3G | Chile (CHL.SA) |
| 3H-3U | China (CHN.AS) |
| 3V | Tunisia (TUN.AF) |
| 3W | Vietnam (VNM.AS) |
| 3X | Guinea (GIN.AF) |
| 3Y | Bouvet Island / Peter 1 Island (BVT.AF) / Antarctic bases |
| 3Z | Poland (POL.EU) |
| 4A-4C | Mexico (MEX.NA) |
| 4D-4I | Philippines (PHL.OC) |
| 4J-4K | Azerbaijan (AZE.AS) |
| 4L | Georgia (GEO.AS) |
| 4M | Venezuela (VEN.SA) |
| 4O | Yugoslavia (YUG.EU) |
| 4P-4S | Sri Lanka (LKA.AS) |
| 4T | Peru (PER.SA) |
| 4U | United Nations Organisation |
| 4V | Haiti (HTI.NA) |
| ? | W Yemen (YEM.AS) |
| 4X | Israel (ISR.AS) |
| 4Y | International Civil Aviation Organisation |
| 4Z | Israel (ISR.AS) |
| 5A | Libya (LBY.AF) |
| 5B | Cyprus (CYP.EU) |
| 5C-5G | Morocco (MAR.AF) |
| 5H-5I | Tanzania (TZA.AF) |
| 5J-5K | Colombia (COL.SA) |
| 5L-5M | Liberia (LBR.AF) |
| 5N-5O | Nigeria (NGA.AF) |
| 5P-5Q | Denmark (DEN.EU) |
| 5R-5S | Madagascar (MDG.AF) |
| 5T | Mauritania (MRT.AF) |
| 5U | Niger (NER.AF) |
| 5V | Togo (TGO.AF) |
| 5W | Western Samoa (WSM.OC) |
| 5X | Uganda (UGA.AF) |
| 5Y-5Z | Kenya (KEN.AF) |
| 6A-6B | Egypt (EGY.AF) |
| 6C | Syria (SYR.AS) |
| 6D-6J | Mexico (MEX.NA) |
| 6K-6N | South Korea (KDR.AS) |
| 6O | Somalia (SOM.AF) |
| 6P-6S | Pakistan (PAK.AS) |
| 6T-6U | Sudan (SDN.AF) |
| 6X | Madagascar (MDG.AF) |
| 6V-6W | Senegal (SEN.AF) |
| 6Y | Jamaica (JAM.NA) |
| 6Z | Liberia (LBR.AF) |
| 7A-7I | Indonesia (IDN.OC) |
| 7J-7N | Japan (JPN.AS) |
| 7O | Yemen (YEM.AS) |
| 7P | Lesotho (LSO.AF) |
| 7Q | Malawi (MWI.AF) |
| 7R | Algeria (DZA.AF) |
| 7S | Sweden (SWE.EU) |
| 7T-7Y | Algeria (DZA.AF) |
| 7Z | Saudi Arabia (SAU.AS) |
| 8A-8I | Indonesia (IDN.OC) |
| 8J-8N | Japan (JPN.AS) |
| 8O | Botswana (BWA.AF) |
| 8P | Barbados (BRB.NA) |
| 8Q | Maldives (MDV.AF) |
| 8R | Guyana (GUY.NA) |
| 8S | Sweden (SWE.EU) |
| 8T-8Y | India (IND.AS) |
| 8Z | Saudi Arabia (SAU.AS) |
| 9A | Croatia (HVT.EU) |
| 9B-9D | Iran (IRN.AS) |
| 9E-9F | Ethiopia (ETH.AF) |
| 9G | Ghana (GHA.AF) |
| 9H | Malta (MLT.EU) |
| 9I-9J | Zambia (ZMB.AF) |
| 9K | Kuwait (KWT.AS) |
| 9L | Sierra Leone (SLE.AF) |
| 9M | Malaysia (MYS.AS) |
| 9N | Nepal (NPL.AS) |
| 9O-9T | Zaire (ZAR.AF) |
| 9U | Burundi (BDI.AF) |
| 9V | Singapore (SGP.AS) |
| 9W | Malaysia (MYS.AS) |
| 9X | Rwanda (RWA.AF) |
| 9Y-9Z | Trinidad and Tobago (TTO.NA) |