| Abbreviation | Definition |
|---|---|
| XIY | Xianyang, Mainland China |
| XJQ | Jonquiere, Quebec, Canada |
| XKA | Kantchari, Burkina Faso |
| XKH | Xieng Khouang, Laos |
| XKO | Kemano, British Columbia, Canada |
| XKS | Kasabonika, Ontario, Canada |
| XKY | Kaya, Burkina Faso |
| XLB | Lac Brochet Airport, Lac Brochet, Monitoba, Canada |
| XLF | Leaf Bay, Quebec, Canada |
| XLO | Long Xuyen, Vietnam |
| XLU | Leo, Burkina Faso |
| XLW | Lemwerder, Germany |
| XMB | M'Bahiakro, Cote D'Ivoire |
| XMC | Mallacoota, Victoria, Australia |
| XMD | Madison, South Dakota |
| XMG | Mahendranagar, Nepal |
| XMH | Manihi, Tuamotu Islands, French Polynesia, South Pacific |
| XMI | Masasi, Tanzania |
| XMN | Xiamen, Mainland China |
| XMP | Macmillan Pass, Yukon, Canada |