| 1 | RIA | Rich International Airways, Inc. | Callsign: Richair, | USA | AVCODES |
| 2 | RIA | Rich International Airways, Inc. | IATA: JN, Callsign: Richair, | USA | AVCODES |
| 3 | RIA | Rich International Airways, Inc. | IATA: RZ, Callsign: Richair, | USA | AVCODES |
| 4 | RIA | Rich International Airways | | | ICAO1 |
| 5 | RIA | Islamic Republic of Iran Railways | Real: RAI | IR | TRAFFIC |
| 6 | RIAC | RICHARDSON & SONS TRUCKING CO | | | SCAC3 |
| 7 | RIAD | RITE AID CORPORATION | | | SCAC3 |
| 8 | RIAD | RIF LINE | | | SCAC4 |
| 9 | RIAF | RENTON ISSAQUAH FREIGHTLINES INC | | | SCAC3 |
| 10 | RIAF | Royal Indian Air Force | | IND | TRAFFIC |
| 11 | RIAG | RELIABLE CARTAGE INC | | | SCAC4 |
| 12 | RIAI | RIG ALL INC | | | SCAC3 |
| 13 | RIAI | RILEY, MIKE TRUCKING | | | SCAC4 |
| 14 | RIAL | RITCHEY, ALAN INC | | | SCAC3 |
| 15 | RIAL | RITCHEY, ALAN INC | | | SCAC4 |
| 16 | RIAM | RYAN INTERNATIONAL AIRLINES (MAINFR | | | SCAC4 |
| 17 | RIAN | RICHARD, NORMAN & SONS | | | SCAC3 |
| 18 | RIAS | REINANTE ARMADORA SA | | | SCAC3 |
| 19 | RIAT | R I A TRUCKINNG | | | SCAC3 |
| 20 | RIAT | RICHIE AUTO TRANSPORT INC | | | SCAC4 |
