# United Cargo (UA)

> Combination carrier — bellyhold capacity under passenger flights, often with freighters alongside.

## Key facts

- IATA designator: UA
- ICAO code: UAL
- AWB prefix: 016
- Primary cargo hub: ORD — Chicago O'Hare International Airport
- Country: United States
- Service model: combination

## Air waybills

A master air waybill issued by United Cargo begins with the prefix 016, followed by an 8-digit serial whose last digit is the first seven digits modulo 7. Verify the prefix against the airline’s own documentation before issuing a waybill against it.

Source: https://airscanner.co/airlines/ua