CN - Camden, New Jersey
CO = Conan O’Brien
CP - Cole Porter
CQ - Cairns, Queensland
CR = Chris Rock
CS - Charles Schulz
CT = Chrissy Teigen
CU = Cambridge, United Kingdom
CV = Cornelius Vanderbilt
CW = Cheyenne, Wyoming
CX = Constantin Xenakis
Greek-born artist living in France
CY = Chuck Yeager
CZ = Carl Zeiss
DA - Darwin, Australia
DB - David Bowie
DC - David Copperfield
DD = Doris Day
DE - Dwight Eisenhower
DF = Dan Fogelberg
DG - Danny Glover