To cite package ‘PhoneValidator’ in publications use:

  Ozturk O (2025). _PhoneValidator: Client for 'GenderAPI.io' Phone
  Number Validation API_. R package version 1.0.0,
  <https://github.com/genderapi/phonevalidator-r>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {PhoneValidator: Client for 'GenderAPI.io' Phone Number Validation API},
    author = {Onur Ozturk},
    year = {2025},
    note = {R package version 1.0.0},
    url = {https://github.com/genderapi/phonevalidator-r},
  }