Real world company prefixes
8
9
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
Ø
P
Q
R
S
T
U
V
W
X
Y
Z
S& SA SB SC SD SE SF SG SH SI SJ SK SL SM SN SO SP SQ SR SS ST SU SV SW SX SY SZ
SE& SEA SEB SEC SED SEE SEF SEG SEH SEI SEJ SEK SEL SEM SEN SEO SEP SEQ SER SES SET SEU SEV SEW SEX SEY SEZ
S& SA SB SC SD SE SF SG SH SI SJ SK SL SM SN SO SP SQ SR SS ST SU SV SW SX SY SZ
SE& SEA SEB SEC SED SEE SEF SEG SEH SEI SEJ SEK SEL SEM SEN SEO SEP SEQ SER SES SET SEU SEV SEW SEX SEY SEZ
| 301 | SEOC | SOUTHEASTERN OIL CO INC | SCAC4 | ||
| 302 | SEOH | SLADE LOGISTICS | SCAC4 | ||
| 303 | SEOI | SEALE OILFIELD CONSULTANTS INC | SCAC4 | ||
| 304 | SEOL | SOUTHEAST LOGISTICS INC | SCAC4 | ||
| 305 | SEOM | SEOMA TRANSPORT LLC | SCAC4 | ||
| 306 | SEON | SUNSET NEON LTD | SCAC4 | ||
| 307 | SEOQ | SIX EIGHT ONE TWO SIX ONE NINE (681 | SCAC4 | ||
| 308 | SEOY | SEA OIL CHARTERING (USA) INC | SCAC4 | ||
| 309 | SEPA | Southeastern Pennsylvania Transporation Authority (passenger commuter operation) | 1/94-7/2000 | NRHS | |
| 310 | SEPA | SOUTHEASTERN PENNSYLVANIA TRANSPORTATION AUTHORITY (SEPTA) | PWRC | ||
| 311 | SEPA | Southeastern Pennsylvania Transporation Authority (passenger commuter operation) | 1/1994-7/2005 | NAKINA | |
| 312 | SEPA | Southeastern Pennsylvania Transportation Authority (SEPTA) | RSRV | ||
| 313 | SEPB | SPREE EXPEDITIONS INC | SCAC4 | ||
| 314 | SEPC | SOUTHWEST ELECTRIC POWER CO. | PWRC | ||
| 315 | SEPC | STEP2 COMPANY LLC, THE | SCAC4 | ||
| 316 | SEPE | SHEPHERD ENTERPRISES LTD | SCAC4 | ||
| 317 | SEPF | SERVICIOS PUBLICO FEDERAL CARGA GEN | SCAC4 | ||
| 318 | SEPK | SHIP-IT EXPRESS II | SCAC4 | ||
| 319 | SEPL | SEASONS TRANSPORTATION SERVICES | SCAC4 | ||
| 320 | SEPN | SOUTHEASTEN SHIPPING LINE LTD | SCAC4 | ||
| 321 | SEPO | SUMMIT ELECTRIC PRODUCTS | SCAC4 | ||
| 322 | SEPQ | SPECIAL EVENT PRODUCTION INC | SCAC4 | ||
| 323 | SEPS | SUREXPRE | SCAC4 | ||
| 324 | SEPSA | Societá per l\'Esercizio di Pubblici Servizi SpA | IT | VKM | |
| 325 | SEPTA | SOUTHEASTERN PENNSYLVANIA TRANSPORTATION AUTHORITY | PWRC | ||
| 326 | SEPX | Shell Eastern Petroleum Products (Shell Union Oil Corp.) | Apr-38 | NRHS | |
| 327 | SEPX | Southwestern Electric Power Co. | 1/80-7/2000 | NRHS | |
| 328 | SEPX | *SHELL OIL CO. | PWRC | ||
| 329 | SEPX | +SOUTHWESTERN ELECTRIC POWER COMPANY | PWRC | ||
| 330 | SEPX | Shell Eastern Petroleum Products | 7/1930 | NAKINA | |
| 331 | SEPX | Shell Eastern Petroleum Products, Inc. | 7/1932-7/1935 | NAKINA | |
| 332 | SEPX | Shell Union Oil Corp. | 7/1937-4/1938 | NAKINA | |
| 333 | SEPX | Shell Oil Co., Inc. | 1/1941-1/1943 | NAKINA | |
| 334 | SEPX | Southwestern Electric Power Co. | 1/1980-7/2005 | NAKINA | |
| 335 | SEPX | Southwestern Electric Power | RSRV | ||
| 336 | SEPX | SOUTHWESTERN ELECTRIC POWER COMPANY | SCAC4 | ||
| 337 | SEQ | Sky Eyes | IATA: I6 | ICAO1 | |
| 338 | SEQA | SEQUOIA AIR FREIGHT | SCAC4 | ||
| 339 | SEQB | SAUNDERS EQUIPMENT LTD | SCAC4 | ||
| 340 | SEQC | SELECT TRANSPORTATION SOLUTIONS INC | SCAC4 | ||
| 341 | SEQD | SPECIALIZED EQUIPMENT RENTAL & DIST | SCAC4 | ||
| 342 | SEQF | STEEL EQUIPMENT SPECIALISTS | SCAC4 | ||
| 343 | SEQL | STEELE ENTERPRISE LLC | SCAC4 | ||
| 344 | SEQP | SIERENS EQUIPMENT LTD | SCAC4 | ||
| 345 | SEQQ | STRATTON EQUITY COOPERATIVE CO | SCAC4 | ||
| 346 | SEQU | Simmonds Equipment | RSRV | ||
| 347 | SEQV | SEA-MAR INC (CONTAINER DIVISION) | SCAC4 | ||
| 348 | SEQX | Sequa Chemicals, Inc. | added 4/97; 7/2000 | NRHS | |
| 349 | SEQX | SEQUA CHEMICALS INCORPORATED | PWRC | ||
| 350 | SEQX | Sequa Chemicals, Inc. | added 4/1997; 7/2000; eliminated 10/2002; 7/2005 (not listed) | NAKINA | |
| 351 | SEQX | Sequa Chemicals | RSRV | ||
| 352 | SER | Aero California | IATA: JR | ICAO1 | |
| 353 | SER | Proservis Ekspres Lojistik Hizmetleri San. Ve.Tic. A.Ş. | TR | VKM | |
| 354 | SERA | Sierra R.R. Co. | 1/75-1/80; eliminated 1/88; eliminated 10/91; 1/94-7/2000 | NRHS | |
| 355 | SERA | SIERRA RAILROAD COMPANY | PWRC | ||
| 356 | SERA | Sierra R.R. Co. | 1/1975; added 1/1976; 1/1980; eliminated 1/1988; eliminated 10/1991; 1/1994-7/2005 | NAKINA | |
| 357 | SERA | Sierra Railroad | RSRV | ||
| 358 | SERA | SIERRA RAILROAD COMPANY | SCAC4 | ||
| 359 | SERC | SPENCERVILLE & ELGIN RAILROAD CO. | PWRC | ||
| 360 | SERC | SERCO INC | SCAC4 | ||
| 361 | SERCO | Serco Railtest | UK | VKM | |
| 362 | SERD | SUN DIEGO CHARTER COMPANY | SCAC4 | ||
| 363 | SERE | SERVICE EQUIPMENT&TRUCKING, INC | SCAC1 | ||
| 364 | SERF | SERVICO DE FLETES Y MONTECARGAS | SCAC4 | ||
| 365 | SERG | SERG TRANSPORT, INC | SCAC4 | ||
| 366 | SERH | SNELL, E R CONTRACTOR INC | SCAC4 | ||
| 367 | SERJ | SERVICE TRANSPORT, INC | SCAC1 | ||
| 368 | SERJ | SERVICE TRANSPORT INC | SCAC4 | ||
| 369 | SERK | SMOKIN ELK RANCH LTD | SCAC4 | ||
| 370 | SERL | SERTRAN LTD | SCAC4 | ||
| 371 | SERN | SOLTERO | SCAC1 | ||
| 372 | SERN | SOLTERO TRUCKING INC | SCAC4 | ||
| 373 | SERP | SEA-TAC ROOFING SUPPLY INC | SCAC4 | ||
| 374 | SERQ | SERTA MATTRESS | SCAC4 | ||
| 375 | SERR | SIERRA INDUSTRIAL S A DE C V | SCAC4 | ||
| 376 | SERSA | Sersa Group Management AG | CH | VKM | |
| 377 | SERSD | Sersa GmbH | DE | VKM | |
| 378 | SERT | SOUTHWEST CONTAINER TRANSPORT | SCAC4 | ||
| 379 | SERU | SERMAR LINE SRL | SCAC4 | ||
| 380 | SERVICES | CHICAG | SCAC4 | ||
| 381 | SERX | Service Tank Car Co. | Apr-38 | NRHS | |
| 382 | SERX | *SOUTHERN ELECTRIC RAILROAD | PWRC | ||
| 383 | SERX | +AMERICAN RAILCAR LEASING, INC. [ACF INDUSTRIES, INC.; SHIPPERS' CAR LINE CORP. (UNION CARBIDE - LESSEE)] | PWRC | ||
| 384 | SERX | Service Tank Car Co. | 7/1930-4/1938 | NAKINA | |
| 385 | SERX | Shippers' Car Line Corp. (Service Tank Car Co.) | 1/1941-7/1954 | NAKINA | |
| 386 | SERX | Shippers' Car Line Corp. | eliminated 7/1956 | NAKINA | |
| 387 | SERX | Shippers' Car Line Division of ACF Industries, Inc. | added 7/1956; 10/1957-1/1975; eliminated 1/1976 | NAKINA | |
| 388 | SERX | Shippers' Car Line Division, ACF Industries, Inc. | added 1/1976; 1/1980; eliminated 4/1988 | NAKINA | |
| 389 | SERX | ACF Industries, Inc. | added 4/1988; 1/1994-7/2000; eliminated 4/2005 | NAKINA | |
| 390 | SERX | American Railcar Leasing, Inc. | added 4/2005; 7/2005 | NAKINA | |
| 391 | SERX | ACF Industries Shippers Car Line Division | RSRV | ||
| 392 | SERX | AMERICAN RAILCAR LEASING LLC | SCAC4 | ||
| 393 | SERX | Shippers' Car Line Corp. (Service Tank Car Co.) | Jan-52 | NRHS | |
| 394 | SERX | Shippers' Car Line Corp. | eliminated 7/56 | NRHS | |
| 395 | SERX | Shippers' Car Line Division of ACF Industries, Inc. | added 7/56; 10/57-1/80; eliminated 4/88 | NRHS | |
| 396 | SERX | ACF Industries, Inc. | added 4/88; 1/94-7/2000 | NRHS | |
| 397 | SERY | SALAZAR EXPRESS REFRIGERADOS SA DE | SCAC4 | ||
| 398 | SES | Servicio Aereo Saltillo | ICAO1 | ||
| 399 | SES | SES Logistik GmbH | DE | VKM | |
| 400 | SES | SES Logistik GmbH | Volsemenhusen (SES = Süderwischer Eisenbahn-Service) | D | privat-bahn.de |