| 7501 | SNLG | STANDARD LOGISTICS LLC | | | SCAC4 |
| 7502 | SNLH | SUNSET LOGISTICS LLC | | | SCAC4 |
| 7503 | SNLI | SCHNEIDER NATIONAL CARRIERS INC - S | | | SCAC4 |
| 7504 | SNLJ | SANJEL (USA) INC | | | SCAC4 |
| 7505 | SNLK | SUNDERLAND TRUCKING LLC | | | SCAC4 |
| 7506 | SNLL | SANDHILL LOGISTICS CO | | | SCAC4 |
| 7507 | SNLM | SUN-LITE METALS INC | | | SCAC4 |
| 7508 | SNLP | SCHNEIDER LOGISTICS TRANSPORTATION | | | SCAC4 |
| 7509 | SNLU | SCHNEIDER NATIONAL | | | PWRC |
| 7510 | SNLU | Schneider National | | | RSRV |
| 7511 | SNLU | SinoTrans | | | SCAC2 |
| 7512 | SNLU | SCHNEIDER NATIONAL CARRIERS INC-INT | | | SCAC4 |
| 7513 | SNLV | SIGFUSSON NORTHERN LTD | | | SCAC4 |
| 7514 | SNLY | SOLUTIONS LOGISTICS INC (INTERMODAL | | | SCAC4 |
| 7515 | SNLZ | SCHNEIDER NATIONAL | | | PWRC |
| 7516 | SNLZ | Schneider National | | | RSRV |
| 7517 | SNLZ | SCHNEIDER NATIONAL | | | SCAC4 |
| 7518 | SNM | Servizi Aerei S.p.A. | Callsign: Servizi Aerei, | I | AVCODES |
| 7519 | SNM | SNAM S.p.A. | | I | AVCODES |
| 7520 | SNM | Servizi Aerei | | | ICAO1 |
| 7521 | SNME | SINO-AMERIC | | | SCAC4 |
| 7522 | SNMF | SHOUN, MICHAEL E | | | SCAC4 |
| 7523 | SNMH | SINOMAN MUSIC LTD | | | SCAC4 |
| 7524 | SNMI | STEEL&MACHINERY TRANSPORT, INC | | | SCAC1 |
| 7525 | SNMI | STEEL & MACHINERY TRANSPORTATION IN | | | SCAC4 |
| 7526 | SNMJ | SOUTHERN MISS TRUCKING INC | | | SCAC4 |
| 7527 | SNML | SCHUKRA OF NORTH AMERICA LTD | | | SCAC4 |
| 7528 | SNMM | SPARTAN MOTORS INC | | | SCAC4 |
| 7529 | SNMN | STINSON MATERIALS INC | | | SCAC4 |
| 7530 | SNMQ | S&M MOVING SYSTEMS | | | SCAC1 |
| 7531 | SNMQ | S & M MOVING SYSTEMS | | | SCAC4 |
| 7532 | SNMR | SUNMAR MARITIME INC | | | SCAC4 |
| 7533 | SNMT | SANTIAM TRANSPORT LLC | | | SCAC4 |
| 7534 | SNMW | STONE, M TRANSPORT & | | | SCAC4 |
| 7535 | SNMX | SNM&P RAILWAY INC. | | | PWRC |
| 7536 | SNMY | SNAP MARKETING LLC | | | SCAC4 |
| 7537 | SNNA | SANTANA TRANSPORTATION | | | SCAC4 |
| 7538 | SNNB | Stubbekøbing - Nykøbing - Nysted Banen (Stubbekøbingbanen) | 1910 - 1966 | DK | jernbanen.dk |
| 7539 | SNNB | Stubbekøbing - Nykøbing - Nysted Banen (Stubbekøbingbanen) | 1910 - 1966 | DK | TRAFFIC |
| 7540 | SNND | SCHINN TRANSPORT INC | | | SCAC4 |
| 7541 | SNNE | SCHNEIDER NATIONAL CARRIERS INC (DE | | | SCAC4 |
| 7542 | SNNF | SOUTHERN COUNTIES | | | SCAC4 |
| 7543 | SNNJ | SHAN CONTAINER LINE | | | SCAC4 |
| 7544 | SNNK | SOUTHERN AIRE TRUCKING LLC | | | SCAC4 |
| 7545 | SNNL | SCHNEIDER NATIONAL CARRIERS INC (NA | | | SCAC4 |
| 7546 | SNNO | STONE CONNECTION INC | | | SCAC4 |
| 7547 | SNNS | SANNS TRANSPORT | | | SCAC4 |
| 7548 | SNNT | SONNEBORN TRANSPORTATION INC | | | SCAC4 |
| 7549 | SNNU | STRAZH-NN LTD | | | SCAC4 |
| 7550 | SNNV | STEVENSON, DAVID | | | SCAC4 |
| 7551 | SNNW | SORENSEN WENDLER TRUCKING, INC | | | SCAC1 |
| 7552 | SNNZ | STONE CONNECTION INC | | | SCAC4 |
| 7553 | SNO | Delta Air Charter Ltd. | Callsign: Snowball, | CDN | AVCODES |
| 7554 | SNO | Delta Air Charter Ltd. | IATA: 9D, Callsign: Snowball, Designator recalled by IATA | CDN | AVCODES |
| 7555 | SNO | Delta Air Charter | | | ICAO1 |
| 7556 | SNOA | SANTOS TRANSPORTATION LLC | | | SCAC4 |
| 7557 | SNOB | SOLUTIONS ONE (1) LOGISTICS | | | SCAC4 |
| 7558 | SNOB | Nordostbahn | Real: NOB | CH | TRAFFIC |
| 7559 | SNOC | SINO CONTAINER LINE, INC. | | | SCAC4 |
| 7560 | SNOD | SANDERS OIL CO INC | | | SCAC4 |
| 7561 | SNOE | SANDERSON OIL CO INC | | | SCAC4 |
| 7562 | SNOF | STALLION CARRIER CORP | | | SCAC4 |
| 7563 | SNOG | SENN FREIGHT LINES INC | | | SCAC4 |
| 7564 | SNOH | SERRANO TRUCKING | | | SCAC4 |
| 7565 | SNOH | Community Transit Snohomish County | | US-WA | TRAFFIC |
| 7566 | SNOI | STERN OIL COMPANY INC | | | SCAC4 |
| 7567 | SNOJ | SPARTON | | | SCAC4 |
| 7568 | SNOM | SCHNEIDER NATIONAL CARRIERS INC (OP | | | SCAC4 |
| 7569 | SNON | SHANNON TRUCKING CO | | | SCAC1 |
| 7570 | SNON | SHANNON TRUCKING CO | | | SCAC4 |
| 7571 | SNOQ | SPINETRONICS LLC | | | SCAC4 |
| 7572 | SNOR | SONAR LIMITED PARTNERSHIP | | | SCAC4 |
| 7573 | SNOS | SANTARELLI & SONS OIL CO INC | | | SCAC4 |
| 7574 | SNOT | SIX NINE SEVEN THREE ONE EIGHT | | | SCAC4 |
| 7575 | SNOY | STONE OIL | | | SCAC4 |
| 7576 | SNP | Sun Pacific International, Inc. | Callsign: Sun Pacific, | USA | AVCODES |
| 7577 | SNP | Sun Pacific International | | | ICAO1 |
| 7578 | SNPB | SNAP TRUCKING | | | SCAC4 |
| 7579 | SNPC | S & P MIDWEST CARRIERS | | | SCAC4 |
| 7580 | SNPD | SPARTAN PERIPHERAL DEVICES | | | SCAC4 |
| 7581 | SNPE | SUN PACIFIC ENERGY INC | | | SCAC4 |
| 7582 | SNPF | SHARON PETROLEUM INC | | | SCAC4 |
| 7583 | SNPG | SUN PACIFIC TRUCKING | | | SCAC4 |
| 7584 | SNPH | SNR TRANSPORT INC | | | SCAC4 |
| 7585 | SNPI | SNAPPY DELIVERY | | | SCAC4 |
| 7586 | SNPJ | SUNRISE TRANSPORTATION LLC | | | SCAC4 |
| 7587 | SNPK | SCANPROTRANS | | | SCAC4 |
| 7588 | SNPL | SOLUTIONS ONE (1) TRANSPORT LLC | | | SCAC4 |
| 7589 | SNPM | SUN EXPRESS INC | | | SCAC4 |
| 7590 | SNPP | STEPHENS POTTERY & METAL | | | SCAC4 |
| 7591 | SNPQ | SULLENS, PAULA TRUCKING INC | | | SCAC4 |
| 7592 | SNPR | SNAP TRUCKING, INC | | | SCAC1 |
| 7593 | SNPR | SNAP TRUCKING INC | | | SCAC4 |
| 7594 | SNPU | SINPEX CONNECTION LOGISTICS LIMITED | | PRC | BIC |
| 7595 | SNQ | Sun Quest Executive Air Charter, Inc. | Callsign: Execu-Quest, | USA | AVCODES |
| 7596 | SNQ | Sun Quest Executive Air Charter | | | ICAO1 |
| 7597 | SNQA | SNAP LEASING INC | | | SCAC4 |
| 7598 | SNQE | SINQUETT, CHRIS TRUCKING | | | SCAC4 |
| 7599 | SNQI | SERVICES NOLITREX INC | | | SCAC4 |
| 7600 | SNQJ | SPENCERARL NIAGARA INC | | | SCAC4 |
