The official NATO phonetic alphabet, which is used to replace ABC for the phonetic equivalent.

A: Alpha
B: Bravo
C: Charlie
D: Delta
E: Echo
F: Foxtrot
G: Golf
H: Hotel
I: India
J: Juliet
K: Kilo
L: Lima
M: Mike
N: November
O: Oscar
P: Papa
Q: Quebec
R: Romeo
S: Sierra
T: Tango
U: Uniform
V: Victor
W: Whiskey
X: Xray
Y: Yankee
Z: Zulu

The NATO Phonetic Alphabet dates back to 1955, and is appoved by the ICAO (International Civil Aviation Organization), the FAA and the ITU amongst others. Its been noted that the british police use I:"indigo" instead of "india". "Beta" is only used within a Indonesian phrasebook. Other versions of the examples used in other countries and/or previous versions in no specific order can include such words as:
Beta, Ultra, Volvo, Alfa, Coca, Metro, Nectar, Siera, Union, Whisky and Extra et al.

(src: updated oct. 2000 - Columbia.edu)