Using phonetics is commonplace especially in RTO when reading out a Licence plate or Spelling someone's name for greater clarity.

Alternatively, LAPD Phonetics language is preferred when calling out Call-Signs, though this is optional. 

Alpha

Bravo
Charlie

Delta

Echo

Foxtrot

Golf

Hotel

India

Juliet

Kilo

Lima

Mike

November

Oscar

Papa

Quebec

Romeo

Sierra

Tango

Uniform

Victor

Whiskey

X-Ray

Yankey

Zulu

Adam

Boy

Charles

David

Edward

Frank

George

Henry

Ida

John
King

Lincoln

Mary

Nora

Ocean

Paul

Queen

Robert

Sam

Tom

Union

Victor

William

X-Ray

Young

Zebra