| 9801 | RUSK | RUSSELL TRUCKING | | | SCAC4 |
| 9802 | RUSL | RUSSELL, H. B | | | SCAC3 |
| 9803 | RUSM | RUSH TRANSPORT INC | | | SCAC3 |
| 9804 | RUSN | RUSSELLS H J INC | | | SCAC3 |
| 9805 | RUSN | RUSHDALE ANTIQUES | | | SCAC4 |
| 9806 | RUSO | RUSSO, ROBERT R | | | SCAC3 |
| 9807 | RUSO | RUSH TRANSPORTATION INC | | | SCAC4 |
| 9808 | RUSP | RUTHERFORD, S P TRANSFER AND STORAG | | | SCAC3 |
| 9809 | RUSQ | RUSSEY DELIVERY SERVICE | | | SCAC3 |
| 9810 | RUSR | RUTHERFORD STORAGE INC | | | SCAC3 |
| 9811 | RUSS | RUSSO SERVICES INC | | | SCAC3 |
| 9812 | RUST | RUSTAN, LARRY TRUCKING INC | | | SCAC4 |
| 9813 | RUSU | BALTICA-TRANS LOGISTIC LLC | | RUS | BIC |
| 9814 | RUSU | REEDEREI ERNST RUSS | | | SCAC3 |
| 9815 | RUSU | RUSRAIL LTD | | | SCAC4 |
| 9816 | RUSV | R U S T TRUCKING | | | SCAC3 |
| 9817 | RUSX | First Union Rail | added 10/1996; 7/2000-7/2005 | | NAKINA |
| 9818 | RUSX | USL Capital Rail Services | added 4/1994; eliminated 10/1996 | | NAKINA |
| 9819 | RUSX | U.S. Rail Services, Inc. | added 4/1978; 1/1980-1/1994; eliminated 4/1994 | | NAKINA |
| 9820 | RUSX | Rail-U.S. Leasing, Inc. | added 4/1973; 1/1975; eliminated 4/1978 | | NAKINA |
| 9821 | RUSX | Resinera Uruapan, S. de R.L. | added 1/1963; 7/1965-4/1970; eliminated 10/1970 | | NAKINA |
| 9822 | RUSX | Resinera Uruapan, S.A. | 1/1945-4/1961; eliminated 1/1963 | | NAKINA |
| 9823 | RUSX | Resinera Uruapan, S. de R.L. | 1/52-4/70; eliminated 10/70 | | NRHS |
| 9824 | RUSX | Rail-U.S. Leasing, Inc. | added 4/73; 1/75; eliminated 4/78 | | NRHS |
| 9825 | RUSX | U.S. Rail Services, Inc. | added 4/78; 1/80-1/94; eliminated 4/94 | | NRHS |
| 9826 | RUSX | USL Capital Rail Services | added 4/94; eliminated 10/96 | | NRHS |
| 9827 | RUSX | First Union Rail | added 10/96; 7/2000 | | NRHS |
| 9828 | RUSX | *RESINERA URUAPAN, SA | | | PWRC |
| 9829 | RUSX | +FIRST UNION RAIL [USL CAPITAL RAIL SERVICES; RAIL-U.S. LEASING, INC.] | | | PWRC |
| 9830 | RUSX | US Rail Services | | | RSRV |
| 9831 | RUSX | RESINERA URUAPAN S DE R L | | | SCAC3 |
| 9832 | RUSY | RUSSELL, J T & SONS INC | | | SCAC4 |
| 9833 | RUT | Routair Aviation Services | Callsign: Routair, | WAN | AVCODES |
| 9834 | RUT | Reut Airways Ltd | Callsign: Yadid, | IL | AVCODES |
| 9835 | RUT | Vermont Ry., Inc. | 1/1994-7/2005 | | NAKINA |
| 9836 | RUT | Vermont Ry., Inc. | 1/94-7/2000 | | NRHS |
| 9837 | RUT | (VTR) VERMONT RAILWAY, INC. [RUTLAND RAILROAD] | | | PWRC |
| 9838 | RUT | Rutland Railroad (Vermont Railway) | | | RSRV |
| 9839 | RUT | Rutland Railroad | Real: R | USA | TRAFFIC |
| 9840 | RUTA | RUSSELLS TRANSPORT | | | SCAC3 |
| 9841 | RUTB | REULES TRUCKING INC | | | SCAC3 |
| 9842 | RUTC | RUSSELL TRUCK COMPANY | | | SCAC3 |
| 9843 | RUTD | RUTHERFORD TRUCKING | | | SCAC3 |
| 9844 | RUTE | RUT'S MOVING&DELIVERY SERVICE, INC. | | | SCAC3 |
| 9845 | RUTER | Ruter AS | City: Oslo, Ruter AS is the public transport authority for Oslo and Akershus counties in Norway, it is responsible for the administration, funding, and marketing (but not direct operation) of public transport in the two counties | N | TRAFFIC |
| 9846 | RUTF | RUTHERFORD GROUP INC | | | SCAC4 |
| 9847 | RUTG | RUTGERS EXPRESS, INC | | | SCAC3 |
| 9848 | RUTI | RUTIGLIANO, JOSEPH AND SONS INC | | | SCAC4 |
| 9849 | RUTJ | RUTLEDGE TRUCKING | | | SCAC3 |
| 9850 | RUTL | RUTLAND OIL CO INC | | | SCAC4 |
| 9851 | RUTM | RUTHERFORD MOVERS | | | SCAC3 |
| 9852 | RUTN | RUBY TANKER CORP NEW YORK | | | SCAC3 |
| 9853 | RUTO | RUTERBORIES INC | | | SCAC4 |
| 9854 | RUTQ | RUTHERFORD FREIGHT LINES INC | | | SCAC3 |
| 9855 | RUTS | RUSH TRUCKING SERVICE | | | SCAC3 |
| 9856 | RUTT | RUSSELL TOWING AND TRANSPORTATION C | | | SCAC3 |
| 9857 | RUTX | Pan-Am Southern Corp. | 1/1950 | | NAKINA |
| 9858 | RUTX | Root Petroleum Co. | 7/1937-4/1947 | | NAKINA |
| 9859 | RUTX | Root Refining Co. | 7/1930-7/1935 | | NAKINA |
| 9860 | RUTX | Root Refineries | 7/1923 | | NAKINA |
| 9861 | RUTX | Root Petroleum Co. | Apr-38 | | NRHS |
| 9862 | RUTX | PAN-AM SOUTHERN CORP. [ROOT PETROLEUM] | | | PWRC |
| 9863 | RUTY | RUTH TRUCKING INC | | | SCAC4 |
| 9864 | RUUU | RUSCON (SHANGHAI) INTERNATIONAL LOGISTICS LTD. | | PRC | BIC |
| 9865 | RUVU | RUBANTRANS LTD | | UA | BIC |
| 9866 | RUWA | RUWA Drahtschweisswerk AG | | CH | VKM |
| 9867 | RUWE | RUWE TOWING INC | | | SCAC3 |
| 9868 | RUWM | RUPP TRUCKING | | | SCAC3 |
| 9869 | RUX | The Ruberoid Co. | 7/1935-1/1945; added 10/1956; 10/1957-4/1961; eliminated 10/1963 | | NAKINA |
| 9870 | RUX | The Ruberoid Co. | 4/38 & 10/57-4/61 | | NRHS |
| 9871 | RUX | RUBEROID CO. | | | PWRC |
| 9872 | RUXI | ROUTEX INTERNATIONAL | | | SCAC4 |
| 9873 | RUXT | RUXTONS EXPRESS | | | SCAC3 |
| 9874 | RUZ | Rosuertol | Callsign: Rostuertol, | RUS | AVCODES |
| 9875 | RUZ | Rusuertol | | | ICAO1 |
| 9876 | RUZB | RUIZ BEAS, PEDRO (MX-493457) | | | SCAC4 |
| 9877 | RUZC | RUIZ CASTILLO, SERGIO | | | SCAC4 |
| 9878 | RUZD | RUIZ, DIANE | | | SCAC4 |
| 9879 | RUZE | RUZILA'S EXPRESS SERVICE, INC | | | SCAC3 |
| 9880 | RUZH | RUIZ, HILARION M | | | SCAC3 |
| 9881 | RUZI | RUDZINSKI TRANSPORTATION INC | | | SCAC3 |
| 9882 | RUZI | RUIZ GARCIA, MARIO | | | SCAC4 |
| 9883 | RUZS | RUIZ, S TRANSPORTATION | | | SCAC4 |
| 9884 | RUZT | RUIZ TRUCKING | | | SCAC4 |
| 9885 | RV | Reeve Aleutian Airways, Inc. | ICAO: RVV, Callsign: Reeve, Ceased operations on 06 December 2000. Designator RV recalled by IATA | USA | AVCODES |
| 9886 | RV | Caspian Airlines Service Company Ltd. | ICAO: CPN, Callsign: Caspian, Designator RV recalled by IATA | IR | AVCODES |
| 9887 | RV | PT. Republic Express Airlines | ICAO: RPH, IATA designator changed to RH | RI | AVCODES |
| 9888 | RV | Redair Limited | ICAO: AFI, Callsign: Africaworld, | WAG | AVCODES |
| 9889 | RV | Venezolana | ICAO: VAO, | YV | AVCODES |
| 9890 | RV | 8165343 Canada Inc. dba Air Canada rouge | ICAO: ROU, Callsign: Rouge, Name changed to Air Canada rouge LP w.e.f. 09 January 2014. | CDN | AVCODES |
| 9891 | RV | Air Canada rouge LP | ICAO: ROU, Callsign: Rouge, Name changed from 8165343 Canada Inc. dba Air Canada rouge w.e.f. 09 January 2014. | CDN | AVCODES |
| 9892 | RV | Rahway Valley R.R. | eliminated 4/1989 | | NAKINA |
| 9893 | RV | Rahway Valley R.R. Co. (transferred to New York, Susquehanna and Western Ry. Corp.) | added 10/1988 | | NAKINA |
| 9894 | RV | Rahway Valley R.R. | eliminated 10/1988 | | NAKINA |
| 9895 | RV | Rahway Valley R.R. Co. (Rahway Valley Co., Lessee) | added 10/1979; 1/1980 | | NAKINA |
| 9896 | RV | Rahway Valley R.R. (Rahway Valley Co., Lessee) | 1/1975; eliminated 10/1979 | | NAKINA |
| 9897 | RV | Rahway Valley R.R. | 7/1923-4/1970 | | NAKINA |
| 9898 | RV | Rahway Valley R.R. | 4/38-4/70 | | NRHS |
| 9899 | RV | Rahway Valley R.R. Co. (Rahway Valley Co., Lessee) | 1/75-1/80 | | NRHS |
| 9900 | RV | Rahway Valley R.R. | eliminated 10/88 | | NRHS |
