anonym vs calling name

anonym

noun
  • An assumed or false name; a pseudonym. 

  • An anonymous person. 

  • A mere name; a name resting upon no diagnosis or other recognized basis. 

calling name

noun
  • The name by which a person is normally identified in conversation. 

  • The name associated with the telephone number or similar identifier of a caller. 

How often have the words anonym and calling name occurred in a corpus of books? (source: Google Ngram Viewer )