Hoofdnummer

Hoofdnummer is a Dutch term meaning "main number." It is used as a generic label for the primary numeric identifier used to contact or identify an entity, with several domain-specific meanings. In telecommunication, the hoofdnummer refers to the main telephone number published for an organization or person. It is the number callers dial first, and it often serves as the entry point that can be routed to different departments or extensions. Extensions are additional numbers that allow direct dialing to individuals or subsystems connected to the hoofdnummer.

In business administration or customer management, the hoofdnummer can be the primary phone number associated with a customer account or organization profile. Additional numbers may exist for mobiles, fax, or alternate lines, but the hoofdnummer remains the central reference. In directories and public listings, the hoofdnummer is typically the number shown as the main contact method for the entity.

In practice, designating a hoofdnummer helps ensure consistency of contact and simplifies routing or record-keeping. It is commonly used alongside extensions or subordinate numbers. The exact meaning can vary by organization or system, so it is advisable to confirm how a specific context defines its hoofdnummer.