The naming of hurricanes (North Atlantic) in alphabetical order began in the early 1950’s. Since then, 88 names have been “retired”, due to their ferocity, damage, and/or casualties - never to be used again.
The most common first letter to be retired is the letter “I” - 12 times, followed by “C” and “F” - 9 times each. Every letter used (Q, U, V, X, Y, Z are not used) had has at least one name retired.