Find My Fbid -

If you are looking for specific business or page IDs rather than a personal profile, follow these steps provided by the Facebook Help Center :

To find your Facebook Numeric ID (FBID), you can use a public lookup tool or find it manually through your profile's source code. This ID is a unique string of numbers used by developers and apps to identify your specific account, even if you change your username. Methods to Find Your FBID find my fbid