Https://community.bigbeartechworld.com/t/full-list-of-lufthansa-irlines-customer-service-numbers-in-usa-a-step-by-step-guide/4916 https://community.bigbeartechworld.com/t/full-list-of-lufthansa-irlines-customer-service-numbers-in-usa-a-step-by-step-guide/4916