In the EU, a VAT identification number can be verified online at the EU's official VIES website. It confirms that the number is currently allocated and can provide the name or other identifying details of the entity to whom the identifier has been allocated.
A culture is a way of life of a group of people--the behaviors, beliefs, values, and symbols that they accept, generally without thinking about them, and that are passed along by communication and imitation from one generation to the next. Culture is symbolic communication.
Community means a shared life. This ties back in to availibility but goes beyond it. Our life in one regard is made up of time. So if we want a shared life we must spend time together. Resources also need to be shared. Basically our checkbooks and our schedules can be a good guage of community.