from wikipedia:
Letter Code word Conflicting accounts of the pronunciation
US Army
standard[10]
ICAO[9] and ITU
Roman standard[11]
FAA
standards[12][13]
ICAO
IPA standard[9]
SIO[14]
(France)
ICAO recording
(1955)[7]
Consolidated transcription
A Alfa
ATIS: Alpha
AL fah AL FAH ALFAH or
AL-FAH
ˈlfɑ al fah [ˈlfʌ] /ˈlfɑː/ AL-fah
B Bravo BRAH voh BRAH VOH
(1955: BRAH VOH)
BRAHVOH or
BRAH-VO
[ˈbrɑːˈvo] bra vo [brɑˈvoʊ] /ˈbrɑːv/ BRAH-voh
C Charlie CHAR lee CHAR LEE CHARLEE or
CHAR-LEE
ˈtʃɑːli  or
ˈʃɑːli
tchah li,
char li
[ˈtʃɑ˞li],
[ˈʃɑ˞li]
/ˈɑrl/ CHAR-lee or
/ˈʃɑrl/ SHAR-lee
D Delta DEL tah DELL TAH DELLTAH or
DELL-TAH
ˈdeltɑ del tah [ˈdɛltʌ] /ˈdɛltɑː/ DEL-tah
E Echo EKK oh ECK OH ECKOH or
ECK-OH
ˈeko k o [ˈɛkoʊ] /ˈɛk/ EK-oh
F Foxtrot FOKS trot FOKS TROT FOKSTROT or
FOKS-TROT
ˈfɔkstrɔt fox trott [ˈfɑkstrɑt] /ˈfɒkstrɒt/ FOKS-trot
G Golf Golf GOLF GOLF ɡʌlf [sic] golf [ˈɡʌl(f)] /ˈɡɒlf/ GOLF
H Hotel HO tell HOH TELL HOHTELL or
HOH-TELL
hoːˈtel ho tll [hoʊˈtɛl] /hˈtɛl/ hoh-TEL
I India IN dee ah IN DEE AH INDEE AH or
IN-DEE-AH
ˈindiˑɑ in di ah [ˈɪndi.ʌ] /ˈɪndɑː/ IN-dee-ah
J Juliett
ATIS: Juliet
JEW lee ett JEW LEE ETT JEWLEE ETT or
JEW-LEE-ETT
ˈdʒuːliˑˈet djou li tt [ˌdʒuliˈɛt] /ˈlɛt/ JEW-lee-et or
/ˌlˈɛt/ JEW-lee-ET
K Kilo KEY loh KEY LOH KEYLOH or
KEY-LOH
ˈkiːlo ki lo [ˈkiloʊ] /ˈkl/ KEE-loh
L Lima LEE mah LEE MAH LEEMAH or
LEE-MAH
ˈliːmɑ li mah [ˈlimʌ] /ˈlmɑː/ LEE-mah
M Mike Mike MIKE MIKE mɑik mak [ˈmʌɪk] /ˈmk/ MYK
N November NOH vem ber NO VEM BER NOVEMBER or
NO-VEM-BER
noˈvembə no vmm ber [noʊˈvɛmbɹ̩] /nˈvɛmbər/ noh-VEM-bər[15]
O Oscar OSS car OSS CAH OSSCAH or
OSS-CAH
ˈɔskɑ oss kar [ˈɑskɹ̩] /ˈɒskɑː/ OS-kah
P Papa PAH pah PAH PAH PAHPAH or
PAH-PAH
pəˈpɑ pah pah [pəˈpɑ] /pɑːˈpɑː/ pah-PAH
Q Quebec keh BECK KEH BECK KEHBECK or
KEH-BECK
keˈbek k bk [kɛˈbɛk] /kɛˈbɛk/ ke-BEK
R Romeo ROW me oh ROW ME OH ROWME OH or
ROW-ME-OH
ˈroːmiˑo ro mi o [ˈɹoʊmi.oʊ] /ˈrm/ ROH-mee-oh
S Sierra see AIR ah SEE AIR RAH SEEAIRAH or
SEE-AIR-AH
siˈerɑ si r rah [siˈɛɾʌ] /sˈɛrɑː/ see-ERR-ah
T Tango TANG go TANG GO TANGGO or
TANG-GO
ˈtnɡo tang go [ˈtŋɡoʊ] /ˈtŋɡ/ TANG-goh
U Uniform YOU nee form YOU NEE FORM or
OO NEE FORM
YOUNEE FORM or
YOU-NEE-FORM or
OO-NEE-FORM
ˈjuːnifɔːm  or
ˈuːnifɔrm
you ni form,
ou ni form
[ˈjunɪ̈fɔ˞m],
[ˈunɪ̈fɔ˞m]
/ˈjuːnfɔrm/ EW-nee-form or
/ˈnfɔrm/ OO-nee-form
V Victor VIK ter VIK TAH VIKTAH or
VIK-TAH
ˈviktɑ vik tar [ˈvɪktəɹ] /ˈvɪktɑː/ VIK-tah
W Whiskey WISS key WISS KEY WISSKEY or
WISS-KEY
ˈwiski ouiss ki [ˈwɪski] /ˈwɪsk/ WIS-kee
X X-ray
or Xray
EKS ray ECKS RAY ECKSRAY [sic] or
ECKS-RAY
ˈeksˈrei kss r [ˈɛksɹeɪ] /ˈɛksr/ EKS-ray or
/ˌɛksˈr/ EKS-RAY
Y Yankee YANG kee YANG KEY YANGKEY [sic] or
YANG-KEY
ˈjnki yang ki [ˈjŋki] /ˈjŋk/ YANG-kee
Z Zulu ZOO loo ZOO LOO ZOOLOO or
ZOO-LOO
ˈzuːluː zou lou [ˈzulu] /ˈzl/ ZOO-loo
- (hyphen) Dash /ˈdʃ/ DASH