When in doubt, the ITU Phonetic Alphabet should always be used. This phonetic alphabet is an international standard and is used worldwide, not only by Amateur Radio operators, but also by military, maritime, and aviation interests.

We also provide the APCO Phonetic Alphabet for reference. The APCO alphabet is commonly used by law enforcement organizations. You should use this phonetic alphabet only if you are familiar enough to use it correctly and only if you are certain that the person on the receiving end customarily uses this alphabet. Law enforcement organizations in some jurisdictions use variations on the APCO phonetics, usually for historical reasons. This can be a source of confusion.

Character	ITU Phonetic	Spoken As	APCO Phonetic
A	Alfa	AL FAH	Adam
B	Bravo	BRAH VOH	Boy
C	Charlie	CHAR LEE or SHAR LEE	Charles
D	Delta	DELL TAH	David
E	Echo	ECK OH	Edward
F	Foxtrot	FOKS TROT	Frank
G	Golf	GOLF	George
H	Hotel	HOH TELL	Henry
I	India	IN DEE AH	Ida
J	Juliett	JEW LEE ETT	John
K	Kilo	KEY LOH	King
L	Lima	LEE MAH	Klincoln
M	Mike	MIKE	Mary
N	November	NO VEM BER	Nora
O	Oscar	OSS CAH	Ocean
P	Papa	PAH PAH	Paul
Q	Quebec	KEH BECK	Queen
R	Romeo	ROW ME OH	Robert
S	Sierra	SEE AIR RAH	Sam
T	Tango	TANG GO	Tom
U	Uniform	YOU NEE FORM or OO NEE FORM	Union
V	Victor	VIK TAH	Victor
W	Whiskey	WISS KEY	William
X	X-ray	ECKS RAY	Xray
Y	Yankee	YANG KEY	Young
Z	Zulu	ZOO LOO	Zebra
0	Zero	ZAY ROH
1	One	WUN
2	Two	TOO
3	Three	TREE
4	Four	FOWER
5	Five	FIVE
6	Six	SIX
7	Seven	SEVEN
8	Eight	AIT
9	Nine	NINER
.	Decimal	DAY SEE MAL