From https://hamradioprep.com/
Ready to get a custom call sign for your ham radio license? In this video, I’ll walk you through the entire vanity call sign application process, step by step. We’ll cover everything from choosing the perfect call sign format (and checking availability) to submitting your application via the FCC License Manager and paying the fee. Plus, stay tuned to the end for a secret hack that lets you switch call signs without paying the application fee!