| 1 | RIP | Ilford-Riverton Airways Ltd | Callsign: Ilford, | CDN | AVCODES |
| 2 | RIPA | RHODE ISLAND PUBLIC TRANSIT AUTHORI | | | SCAC3 |
| 3 | RIPA | REFRIGERADOS INTERNACIONALES PARAIS | | | SCAC4 |
| 4 | RIPD | RIPPE, DONALD W | | | SCAC3 |
| 5 | RIPE | RIPPEE, D & S & SON TRUCKING | | | SCAC3 |
| 6 | RIPH | RICHARD, PHILIPPE, LTD | | | SCAC3 |
| 7 | RIPL | RINGSBY-PACIFIC LTD. | | | PWRC |
| 8 | RIPM | R I P TRUCKING | | | SCAC3 |
| 9 | RIPN | R I P TRANSPORTATION | | | SCAC3 |
| 10 | RIPO | RIP-O-BEC INC | | | SCAC4 |
| 11 | RIPP | RIPPEE, RICHARD | | | SCAC3 |
| 12 | RIPR | RIVERSIDE PRODUCE INC | | | SCAC3 |
| 13 | RIPTA | Rhode Island Public Transit Authority | | USA | TRAFFIC |
| 14 | RIPX | Rochester Independent Packer, Inc. | added 7/1969; 4/1970-1/1980; eliminated 5/1983; 1/1994 (not listed) | | NAKINA |
| 15 | RIPX | Rock Island Petroleum Co. | 8/1920 | | NAKINA |
| 16 | RIPX | Rochester Independent Packer, Inc. | added 7/69; 4/70-1/80; eliminated 5/83; 1/94 | | NRHS |
| 17 | RIPX | *ROCK ISLAND PETROLEUM CO. | | | PWRC |
| 18 | RIPX | *ROCHESTER INDEPENDENT PACKER, INC. | | | PWRC |
| 19 | RIPZ | ROANOKE INDUSTRIAL PARK | | | PWRC |
