| Source Code | Source Description |
|---|---|
| AB | Arab Satellite Communications Organization |
| ABS | Asia Broadcast Satellite |
| AC | Asia Satellite Telecommunications Company (ASIASAT) |
| ALG | Algeria |
| ANG | Angola |
| ARGN | Argentina |
| ARM | Republic of Armenia |
| ASRA | Austria |
| AUS | Australia |
| AZER | Azerbaijan |
| BEL | Belgium |
| BELA | Belarus |
| BERM | Bermuda |
| BGD | Peoples Republic of Bangladesh |
| BHUT | Kingdom of Bhutan |
| BOL | Bolivia |
| BRAZ | Brazil |
| BUL | Bulgaria |
| CA | Canada |
| CHBZ | China/Brazil |
| CHTU | China/Turkey |
| CHLE | Chile |
| CIS | Commonwealth of Independent States (former USSR) |
| COL | Colombia |
| CRI | Republic of Costa Rica |
| CZCH | Czech Republic (former Czechoslovakia) |
| DEN | Denmark |
| DJI | Republic of Djibouti |
| ECU | Ecuador |
| EGYP | Egypt |
| ESA | European Space Agency |
| ESRO | European Space Research Organization |
| EST | Estonia |
| ETH | Ethiopia |
| EUME | European Organization for the Exploitation of Meteorological Satellites (EUMETSAT) |
| EUTE | European Telecommunications Satellite Organization (EUTELSAT) |
| FGER | France/Germany |
| FIN | Finland |
| FR | France |
| FRIT | France/Italy |
| GER | Germany |
| GHA | Republic of Ghana |
| GLOB | Globalstar |
| GREC | Greece |
| GRSA | Greece/Saudi Arabia |
| GUAT | Guatemala |
| HUN | Hungary |
| IM | International Mobile Satellite Organization (INMARSAT) |
| IND | India |
| INDO | Indonesia |
| IRAN | Iran |
| IRAQ | Iraq |
| IRID | Iridium |
| IRL | Ireland |
| ISRA | Israel |
| ISRO | Indian Space Research Organisation |
| ISS | International Space Station |
| IT | Italy |
| ITSO | International Telecommunications Satellite Organization (INTELSAT) |
| JPN | Japan |
| KAZ | Kazakhstan |
| KEN | Republic of Kenya |
| LAOS | Laos |
| LKA | Democratic Socialist Republic of Sri Lanka |
| LTU | Lithuania |
| LUXE | Luxembourg |
| MA | Morroco |
| MALA | Malaysia |
| MCO | Principality of Monaco |
| MDA | Republic of Moldova |
| MEX | Mexico |
| MMR | Republic of the Union of Myanmar |
| MNG | Mongolia |
| MUS | Mauritius |
| NATO | North Atlantic Treaty Organization |
| NETH | Netherlands |
| NICO | New ICO |
| NIG | Nigeria |
| NKOR | Democratic People's Republic of Korea |
| NOR | Norway |
| NPL | Federal Democratic Republic of Nepal |
| NZ | New Zealand |
| O3B | O3b Networks |
| ORB | ORBCOMM |
| PAKI | Pakistan |
| PERU | Peru |
| POL | Poland |
| POR | Portugal |
| PRC | People's Republic of China |
| PRY | Republic of Paraguay |
| PRES | People's Republic of China/European Space Agency |
| QAT | State of Qatar |
| RASC | RascomStar-QAF |
| ROC | Taiwan (Republic of China) |
| ROM | Romania |
| RP | Philippines (Republic of the Philippines) |
| RWA | Republic of Rwanda |
| SAFR | South Africa |
| SAUD | Saudi Arabia |
| SDN | Republic of Sudan |
| SEAL | Sea Launch |
| SEN | Republic of Senegal |
| SES | SES |
| SGJP | Singapore/Japan |
| SING | Singapore |
| SKOR | Republic of Korea |
| SPN | Spain |
| STCT | Singapore/Taiwan |
| SVN | Slovenia |
| SWED | Sweden |
| SWTZ | Switzerland |
| TBD | To Be Determined |
| THAI | Thailand |
| TMMC | Turkmenistan/Monaco |
| TUN | Republic of Tunisia |
| TURK | Turkey |
| UAE | United Arab Emirates |
| UK | United Kingdom |
| UKR | Ukraine |
| UNK | Unknown |
| URY | Uruguay |
| US | United States |
| USBZ | United States/Brazil |
| VAT | Vatican City State |
| VENZ | Venezuela |
| VTNM | Vietnam |
| ZWE | Republic of Zimbabwe |