Naics code Naics crossreference
488999 Providing support activities for air transportation--are classified in Industry Group 4881, Support Activities for Air Transportation
488999 Providing support activities for rail transportation--are classified in Industry 488210, Support Activities for Rail Transportation
488999 Providing support activities for water transportation--are classified in Industry Group 4883, Support Activities for Water Transportation
488999 Providing support activities for road transportation--are classified in Industry Group 4884, Support Activities for Road Transportation
488999 Arranging transportation of freight between shippers and carriers--are classified in Industry 488510, Freight Transportation Arrangement
488999 Providing ridesharing arrangement services and taxicab dispatch services--are classified in Industry 485310, Taxi and Ridesharing Services.
491110 Providing bulk transportation of mail on a contract basis to and from postal service establishments--are classified in Industry Group 4841, General Freight Trucking
491110 Providing services outside of the basic mail service, such as mail presort, mail consolidation, or address bar coding services, on a contract or fee basis--are classified in U.S. Industry 561499, All Other Business Support Services
491110 Providing courier services and express delivery of parcels without operating under a universal service obligation--are classified in Industry 492110, Couriers and Express Delivery Services
491110 Providing mailbox services along with other business services--are classified in U.S. Industry 561431, Private Mail Centers