| 10401 | ST | Springfield Terminal Ry. Co. | Jan-94 | | NRHS |
| 10402 | ST | Springfield Terminal Ry. Co. (NH) | eliminated 10/97 | | NRHS |
| 10403 | ST | ST Rail System | Jul-00 | | NRHS |
| 10404 | ST | *GUILFORD RAIL SYSTEM [SPRINGFIELD TERMINAL RAILWAY] | | | PWRC |
| 10405 | ST | +ST RAIL SYSTEM | | | PWRC |
| 10406 | ST | Springfield Terminal Railway (Pan Am Railways) | | | RSRV |
| 10407 | ST | ST RAIL SYSTEM | | | SCAC4 |
| 10408 | ST | Sydtåg | 1991 - 1997 | S | svenska-lok.se |
| 10409 | ST | Sursee-Triengen-Bahn | | CH | TRAFFIC |
| 10410 | ST | Sursee-Triengen Bahn AG | | CH | VKM |
| 10411 | STA | Star Aviation | Callsign: Star, | GB | AVCODES |
| 10412 | STA | Star Aviation | | | ICAO1 |
| 10413 | STA | National Rail Corporation - SeaTrain | | AUS | TRAFFIC |
| 10414 | STA | Stahlberg Track Asset GmbH & Co. KG | | DE | VKM |
| 10415 | STAA | ST AMANT, ROSARIO | | | SCAC4 |
| 10416 | STAB | STAVANGER BAY KS | | | SCAC4 |
| 10417 | STAB | Svensk Tågkraft AB | 2004 - | S | svenska-lok.se |
| 10418 | STAB | Svensk Tågkraft AB | 2004 - | S | TRAFFIC |
| 10419 | STAB | Svensk Tågkraft AB | | SE | VKM |
| 10420 | STAC | STAR MOVING & STORAGE INC | | | SCAC4 |
| 10421 | STAC | Service de transport de l’agglomération chambérienne | City: Chambéry | F | TRAFFIC |
| 10422 | STAD | STANDARDEX LLC | | | SCAC4 |
| 10423 | STAE | ST AGUEDA TRANSP SERVS | | | SCAC4 |
| 10424 | STAG | Stadler Rail | | CH | TRAFFIC |
| 10425 | STAG | Stadler Bussnang AG | | CH | VKM |
| 10426 | STAGC | Stagecarriage | | GB | TRAFFIC |
| 10427 | STAI | STALLARD INC | | | SCAC4 |
| 10428 | STAK | STAR TRUCKING INC | | | SCAC4 |
| 10429 | STAL | STALLWORTH TRUCKING INC | | | SCAC4 |
| 10430 | STAL | Siemens Transformers Austria GmbH & Co KG | | AT | VKM |
| 10431 | STAO | STANDARD TOOL | | | SCAC4 |
| 10432 | STAP | STAR 2000 TRUCK LINES | | | SCAC4 |
| 10433 | STAP | Stadler Pankow GmbH | | DE | VKM |
| 10434 | STAR | STAR, A A, TRANSFER CO. | | | PWRC |
| 10435 | STAR | Stichting Stadskanaal Rail | | NL | TRAFFIC |
| 10436 | STARP | Aerolíneas Star Perú S.A. | | PE | TRAFFIC |
| 10437 | STARR | STARR | | US-NJ | TRAFFIC |
| 10438 | START | MÁV-START ZRt. | | HU | VKM |
| 10439 | STAS | | City: St. Etienne | F | TRAFFIC |
| 10440 | STAT | STAATS EXPRESS, INC | | | SCAC1 |
| 10441 | STAT | St. Albert Transit | | CDN | TRAFFIC |
| 10442 | STAU | {JSC "Russian Container Company"};ZIPCODE=123112 | | RUS | BIC |
| 10443 | STAU | STAR SHIPPING A NORWAY | | | PWRC |
| 10444 | STAU | Star Shipping A Norway | | | RSRV |
| 10445 | STAU | STAR SHIPPING A/S | | | SCAC1 |
| 10446 | STAUB | STAUB& CO Chemiehandelsgesellschaft mbH | | DE | VKM |
| 10447 | STAV | STAV GmbH | | DE | VKM |
| 10448 | STAX | Stauffer Chemical Co. (Northern California Branch) | 7/1930-7/1935 | | NAKINA |
| 10449 | STAX | Stauffer Chemical Co. — Northern California Branch | 7/1937-7/1954; eliminated 7/1956 | | NAKINA |
| 10450 | STAX | Stauffer Chemical Co. (Western Branch) | added 7/1956; 10/1957-1/1975 | | NAKINA |
| 10451 | STAX | Stauffer Chemical Co. | 1/1980; eliminated 4/1990 | | NAKINA |
| 10452 | STAX | Rhone-Poulenc Basic Chemicals Co. | added 4/1990; 1/1994; eliminated 7/1996 | | NAKINA |
| 10453 | STAX | OCI Chemical Corp. | added 7/1996; 7/2000-7/2005 | | NAKINA |
| 10454 | STAX | Stauffer Chemical Co. -- Northern California Branch | 4/38-1/52; eliminated 7/56 | | NRHS |
| 10455 | STAX | Stauffer Chemical Co. (Western Branch) | added 7/56; 10/57-1/75 | | NRHS |
| 10456 | STAX | Stauffer Chemical Co. | 1/80; eliminated 4/90 | | NRHS |
| 10457 | STAX | Rhone-Poulenc Basic Chemicals Co. | added 4/90; 1/94; eliminated 7/96 | | NRHS |
| 10458 | STAX | OCI Chemical Corp. | added 7/96; 7/2000 | | NRHS |
| 10459 | STAX | OCI CHEMICAL CORPORATION [(RPBX) RHONE-POULENC BASIC CHEMICALS CO.; STAUFFER CHEMICAL CO.] | | | PWRC |
| 10460 | STAX | Stauffer Chemical (OCI Chemical Corporation) | | | RSRV |
| 10461 | STAZT | Trolleybusni Prevoz Stara Zagora | | BG | TRAFFIC |
| 10462 | STB | Staero Ltd. | Callsign: Staero, | RUS | AVCODES |
| 10463 | STB | Star Airways sh.p.k | IATA: 4S, | AL | AVCODES |
| 10464 | STB | St Barth Executive | Callsign: Sea Barth, | BLM | AVCODES |
| 10465 | STB | Status-Alpha Airline | | | ICAO1 |
| 10466 | STB | Süd Thüringen Bahn GmbH | Meiningen | D | privat-bahn.de |
| 10467 | STB | Seetalbahn | | CH | TRAFFIC |
| 10468 | STB | Süd-Thüringen Bahn | | DE | VKM |
| 10469 | STBA | SANTA BARBARA AIRBUS | | | SCAC4 |
| 10470 | STBAT | Steiermarkbahn Transport & Logistik GmbH | | AT | VKM |
| 10471 | STBC | STUBBLEFIELD COMPANY | | | SCAC4 |
| 10472 | STBE | SIMS CAB DEPOT | | | SCAC4 |
| 10473 | STBE | Süd-Thüringen Bahn | Real: STB, a subsidiary of the Erfurter Industriebahn | D | TRAFFIC |
| 10474 | STBH | SELLERS TRANSPORTATION INC | | | SCAC4 |
| 10475 | STBI | STONINGTON GALLERY INC | | | SCAC4 |
| 10476 | STBL | SPARTAN TRANSPORT NATIONWIDE LLC | | | SCAC4 |
| 10477 | STBN | SCOTT & BEARSKIN | | | PWRC |
| 10478 | STBO | STONE, BOB | | | SCAC4 |
| 10479 | STBQ | S T BROS | | | SCAC4 |
| 10480 | STBR | Stadtwerke Bad Reichenhall | | D | TRAFFIC |
| 10481 | STBS | ST-BASILE TRANSPORT INC (DIV OF CIM | | | SCAC4 |
| 10482 | STBU | STOLT TANK CONTAINERS LEASING LTD | | BM | BIC |
| 10483 | STBU | STOLT TANK CONTAINERS LEASING LTD | | | SCAC4 |
| 10484 | STBV | STUBBS, KEVIN TRUCKING INC | | | SCAC4 |
| 10485 | STBY | SCROGGINS TRUCKING | | | SCAC4 |
| 10486 | STC | Stadium City Limited | Callsign: Stadium, | GB | AVCODES |
| 10487 | STC | Skytaxi Luftfahrt GmbH | Callsign: Air Jet, | A | AVCODES |
| 10488 | STC | Stadium City Limited | | | ICAO1 |
| 10489 | STC | SIMPSON TIMBER CO. | | | PWRC |
| 10490 | STC | Saskatchewan Transportation Company | | CDN | TRAFFIC |
| 10491 | STCB | STEUBENVILLE TRANSFER CO | | | SCAC1 |
| 10492 | STCC | SHRED-TECH CORPORATION | | | SCAC4 |
| 10493 | STCD | STATUS TRANSPORT CORP | | | SCAC4 |
| 10494 | STCE | STRICKLAND TRANSP CO INC | | | PWRC |
| 10495 | STCE | STAR TRANSPORTATION CO | | | SCAC4 |
| 10496 | STCE | Société des Transports de Calais et Extensions | City: Calais | F | TRAFFIC |
| 10497 | STCG | SUMMERS TRUCKING INC | | | SCAC4 |
| 10498 | STCH | SIX THREE ONE ZERO FIVE NINE ONE (6 | | | SCAC4 |
| 10499 | STCI | STANLEY TRUCKING COMPANY INC | | | SCAC4 |
| 10500 | STCK | SOUTHWEST TRANSPORT CO | | | SCAC4 |
