X
- X?
- XB. Halifax to Boston (reverse BX)
- XIF. Egypt to Italy (reverse IXF)
- XK. Gibraltar to UK (reverse KX)
- XT. Alexandria to Tripoli (reverse TX)
- XTG. Alexandria Tripoli Gibraltar 1943 (reverse GTX)
- XW. Alexandria to Western Desert (reverse WX)
Read more about this topic: List Of World War II Convoy Codes