| 10601 | BSDX | Border States Distributing Co. | Jan-52 | | NRHS |
| 10602 | BSDX | BORDER STATES DISTRIBUTING CO. | | | PWRC |
| 10603 | BSDY | BIG SANDY TRUCKING | | | SCAC3 |
| 10604 | BSE | BIRMINGHAM & SOUTHEASTERN RR | | | PWRC |
| 10605 | BSE | Braunschweig-Schöniger Eisenbahn | | D | TRAFFIC |
| 10606 | BSEA | BAY SEA TRANSPORT INC | | | SCAC3 |
| 10607 | BSEA | BLUE STREAK EXPEDITED SERVICES INC | | | SCAC4 |
| 10608 | BSEC | BASIC STEEL ERECTORS INC | | | SCAC3 |
| 10609 | BSED | BERKSHIRE ESCORTED TOURS | | | SCAC3 |
| 10610 | BSED | BENSON & SONS ENTERPRISES | | | SCAC4 |
| 10611 | BSEE | BUSY BEE | | | SCAC3 |
| 10612 | BSEE | BEDESSE | | | SCAC4 |
| 10613 | BSEF | BOSE CORPORATION | | | SCAC3 |
| 10614 | BSEF | BOSE CORPORATION | | | SCAC4 |
| 10615 | BSEG | Brohltal Schmalspur Eisenbahn Betriebs GmbH | Brohl | D | privat-bahn.de |
| 10616 | BSEI | BOSTON SHIPPING ENT INC BROOKLYN | | | SCAC3 |
| 10617 | BSEJ | BREAKTHRU SEEDS ENHANCEMENT CORPORA | | | SCAC4 |
| 10618 | BSEK | BLOSENSKI TRANSPORT | | | SCAC3 |
| 10619 | BSEL | BEST EXECUTIVE LIMOUSINE SERVICE | | | SCAC3 |
| 10620 | BSEL | BIG SKY EQUIPMENT LTD | | | SCAC4 |
| 10621 | BSEM | BROUSSARD, ED MARINE SERVICE INC | | | SCAC3 |
| 10622 | BSEO | B & S STEEL | | | SCAC3 |
| 10623 | BSEP | BLUE STAR EXPRESS, INC. | | | SCAC3 |
| 10624 | BSEP | BLUE STAR EXPRESS INC | | | SCAC4 |
| 10625 | BSEQ | BLUE ROUTE DELIVERY SERVICE | | | SCAC3 |
| 10626 | BSEQ | BASIC STRUCTURE ENGINEERING & GLAZI | | | SCAC4 |
| 10627 | BSER | BETTES, WARREN EVERETT | | | SCAC3 |
| 10628 | BSER | BORDER SERVICES INC | | | SCAC4 |
| 10629 | BSERV | Baneservice | Real: bs | N | TRAFFIC |
| 10630 | BSES | BUS EXPRESS SERVICES INC | | | SCAC3 |
| 10631 | BSEV | BENTEX SERVICES INC | | | SCAC3 |
| 10632 | BSEV | BENTEX SERVICES INC | | | SCAC4 |
| 10633 | BSEW | BOESEN, T K A/S | | | SCAC3 |
| 10634 | BSEW | BEST SHIPPING EVER INC | | | SCAC4 |
| 10635 | BSEX | BADGER STATE ETHANOL, LLC | | | PWRC |
| 10636 | BSEX | BADGER STATE ETHANOL LLC | | | SCAC4 |
| 10637 | BSF | Business Flight of Scandinavia A/S | Callsign: Business Flight, | DK | AVCODES |
| 10638 | BSF | BS Mekaniska Verkstad AB | | SE | VKM |
| 10639 | BSFA | BAY STATE FUEL OIL INC OF AGAWAM | | | SCAC4 |
| 10640 | BSFC | BESSEN, FRANCIS C | | | SCAC3 |
| 10641 | BSFC | BERNARDS SEAFOOD CO LTD | | | SCAC4 |
| 10642 | BSFD | B & S FISHING LTD | | | SCAC4 |
| 10643 | BSFE | BSF TRUCKING LLC | | | SCAC4 |
| 10644 | BSFF | BRIESE SCHIFFAHRTS VERWALTUNGS GMBH | | | SCAC4 |
| 10645 | BSFG | BROTHERS FORWARDING INC | | | SCAC3 |
| 10646 | BSFH | BESTRANS FREIGHT SYSTEM INC | | | SCAC3 |
| 10647 | BSFH | BLU-SKYY FREIGHT & LOGISTICS | | | SCAC4 |
| 10648 | BSFI | BIG STATE FAST FREIGHT | | | SCAC3 |
| 10649 | BSFJ | BERKS TOWING LLC | | | SCAC4 |
| 10650 | BSFK | B S F TRUCKING INC | | | SCAC4 |
| 10651 | BSFL | BARNES, F L TRUCKING INC | | | SCAC4 |
| 10652 | BSFM | BAIRD & STRAUB FARMS INC | | | SCAC3 |
| 10653 | BSFN | BASIC FIBRES INC | | | SCAC3 |
| 10654 | BSFO | BLUE SKY FORWARDING INC | | | SCAC4 |
| 10655 | BSFQ | BRUCE SEED FARM INC | | | SCAC4 |
| 10656 | BSFR | BIG SKY FARMERS & RANCHERS MARKETIN | | | SCAC3 |
| 10657 | BSFR | BLUE SEAL FREIGHT | | | SCAC4 |
| 10658 | BSFS | BEST EXPRESS FOODS | | | SCAC4 |
| 10659 | BSFV | BOJORQUEZ SANUDO, FRANCISCO JAVIER | | | SCAC4 |
| 10660 | BSFW | BEST FORWARDERS INC | | | SCAC3 |
| 10661 | BSFX | Brooks-Scanlon Corp. | 8/1920-7/1923 | | NAKINA |
| 10662 | BSFX | *BIG SOUTH FORK SCENIC RAILWAY | | | PWRC |
| 10663 | BSFX | BROOKS-SCANLON CORP. | | | PWRC |
| 10664 | BSG | Boss Air Group | Callsign: Boss-Group, | BG | AVCODES |
| 10665 | BSG | Blue Square Aviation Group Malta Ltd. | | M | AVCODES |
| 10666 | BSGA | BLUE SHIPPING AGENCY | | | SCAC3 |
| 10667 | BSGC | B & S TRUCKING CO | | | SCAC3 |
| 10668 | BSGD | BP & SONS GRAIN AND STORAGE INC | | | SCAC4 |
| 10669 | BSGE | BISGES, LEROY H INC | | | SCAC4 |
| 10670 | BSGF | BISSERT, GEORGE F | | | SCAC3 |
| 10671 | BSGF | BEAGLE SHIPPING INC | | | SCAC4 |
| 10672 | BSGG | BEISER, GREG | | | SCAC3 |
| 10673 | BSGI | BEST TRUCKING INC | | | SCAC3 |
| 10674 | BSGI | B & S TRUCKING CO INC | | | SCAC4 |
| 10675 | BSGJ | BRAZIL SHIPPING I LIMITED | | | SCAC4 |
| 10676 | BSGK | BULLDOG SERVICES INCORPORATED | | | SCAC4 |
| 10677 | BSGL | BERNICE SHIPPING LIMITED | | | SCAC3 |
| 10678 | BSGL | B-S TRUCKING LLC | | | SCAC4 |
| 10679 | BSGM | BC SUPPLY DE MEXICO SA DE CV | | | SCAC4 |
| 10680 | BSGN | BISON GRAIN COMPANY | | | SCAC4 |
| 10681 | BSGO | BALTIMORE SHIPPING CO INC | | | SCAC3 |
| 10682 | BSGO | BAYRAKTAR GEMI ISLETMECILIGI VE KIR | | | SCAC4 |
| 10683 | BSGP | BELLE SPRINGS TRUCKING INC | | | SCAC4 |
| 10684 | BSGQ | BOSS LOGISTICS INCORPORATED | | | SCAC4 |
| 10685 | BSGS | BASIC LOGISTICS CORP | | | SCAC4 |
| 10686 | BSGU | BLACK SEA SHIPPING SERVICE LTD | | | SCAC4 |
| 10687 | BSGV | BLUE STAR TRUCKING LLC | | | SCAC4 |
| 10688 | BSGX | Becker Sand & Gravel Co. | added 10/1969; 4/1970-1/1975; eliminated 10/1975 | | NAKINA |
| 10689 | BSGX | Becker Sand & Gravel Co. | added 10/69; 4/70-1/75 | | NRHS |
| 10690 | BSGZ | BECKER SAND & GRAVEL | | | PWRC |
| 10691 | BSH | Beijing Capital Airlines Helicopter General Aviation Services Co., Ltd | Callsign: Capital Rotor, | PRC | AVCODES |
| 10692 | BSH | Brenntag Schweizerhall AG | | CH | VKM |
| 10693 | BSHA | BFS TRANSPORTATION INC | | | SCAC4 |
| 10694 | BSHB | BISHOP BUS SERVICE | | | SCAC3 |
| 10695 | BSHB | BRODEUR SULKY & HARNESS MFG INC | | | SCAC4 |
| 10696 | BSHC | BELOEIL ST-HILAIRE TRANSPORT INC | | | SCAC3 |
| 10697 | BSHD | BUSHNELL TRANSPORTS INC | | | SCAC3 |
| 10698 | BSHE | BETTS, SHIRLEY EDWARD | | | SCAC3 |
| 10699 | BSHE | BUSH, EDGAR | | | SCAC4 |
| 10700 | BSHF | BASHFORD TRAVEL CORP | | | SCAC3 |
