To cite package ‘ip2locationio’ in publications use:

IP2Location.io (2025). ip2locationio: Lookup Geolocation and Proxy Information using 'IP2Location.io' API. R package version 1.1.0, https://CRAN.R-project.org/package=ip2locationio.

Corresponding BibTeX entry:

  @Manual{,
    title = {ip2locationio: Lookup Geolocation and Proxy Information
      using 'IP2Location.io' API},
    author = {{IP2Location.io}},
    year = {2025},
    note = {R package version 1.1.0},
    url = {https://CRAN.R-project.org/package=ip2locationio},
  }