Your civic number is the main physical feature used by emergency responders when locating the source of a 9-1-1 call.
Every owner of a residence or business must display the civic address number so it is clearly visible from the main roadway. This allows emergency responders to find the address quickly in an emergency.
Your civic address is used by many different service agencies (i.e. banks, insurance companies, etc). These agencies may require your valid civic address before offering or delivering services to you.