| 5701 | BKCG | BRICK CARTAGE COMPNY | | | SCAC3 |
| 5702 | BKCG | BLUE STREAK COURIER SERVICE INC | | | SCAC4 |
| 5703 | BKCH | BAKER, CHARLES H JR-BUSINESS TRUST | | | SCAC3 |
| 5704 | BKCI | BAKICH, E A TRUCKING INC | | | SCAC3 |
| 5705 | BKCK | BROCK TRUCKING INC | | | SCAC4 |
| 5706 | BKCL | BROKEN CIRCLE TRANSPORTATION INC | | | SCAC3 |
| 5707 | BKCM | BULK COMMODITIES TRANSPORT INC | | | SCAC3 |
| 5708 | BKCM | BECKETTS CREEK FARMS | | | SCAC4 |
| 5709 | BKCN | B K TRUCKLINES INC | | | SCAC4 |
| 5710 | BKCO | BERKS MUTUAL LEASING CORP | | | SCAC3 |
| 5711 | BKCO | BK TRUCKING COMPANY INC | | | SCAC4 |
| 5712 | BKCP | BLOCKSOM & COMPANY | | | SCAC3 |
| 5713 | BKCP | BLUESKY CORPORATION | | | SCAC4 |
| 5714 | BKCQ | BURKE CARTAGE | | | SCAC3 |
| 5715 | BKCR | BROOKS CONTRACT CARRIERS INC | | | SCAC3 |
| 5716 | BKCR | BROOKSIDE COLD STORAGE INC | | | SCAC4 |
| 5717 | BKCS | B O T TRUCKING CO | | | SCAC3 |
| 5718 | BKCT | BUCK COMPANY, THE | | | SCAC3 |
| 5719 | BKCT | BUCK COMPANY, THE | | | SCAC4 |
| 5720 | BKCV | B K C INC | | | SCAC3 |
| 5721 | BKCV | BROOKS COURIER SERVICE INC | | | SCAC4 |
| 5722 | BKCX | The Berkshire Chemical Co. | 7/1935-4/1938 | | NAKINA |
| 5723 | BKCX | The Berkshire Chemical Co. | Apr-38 | | NRHS |
| 5724 | BKCX | BERKSHIRE CHEMICAL CO. | | | PWRC |
| 5725 | BKCY | BLOCKHOUSE CO INC | | | SCAC3 |
| 5726 | BKCY | BLOCKHOUSE CO INC | | | SCAC4 |
| 5727 | BKD | Borkumer Kleinbahn und Dampfschifffahrt | | DE | VKM |
| 5728 | BKDA | BROCK, DARRELL | | | SCAC3 |
| 5729 | BKDB | BICKFORD, ROBERT LEE | | | SCAC4 |
| 5730 | BKDC | BEKINS DISTRIBUTION CENTER | | | SCAC3 |
| 5731 | BKDD | BAKER, DALE C | | | SCAC3 |
| 5732 | BKDD | BECKER, D D | | | SCAC4 |
| 5733 | BKDE | BLACK DIAMOND TRANSPORTATION INC | | | SCAC3 |
| 5734 | BKDE | BUICK DESIGNS | | | SCAC4 |
| 5735 | BKDG | BECKER, DEAN GORDON | | | SCAC3 |
| 5736 | BKDG | BLOCK, DUANE TRUCKING INC | | | SCAC4 |
| 5737 | BKDH | BLACK DIAMOND ASPHALT INC | | | SCAC4 |
| 5738 | BKDI | BAKER-DUNCAN VAN & STORAGE CO | | | SCAC3 |
| 5739 | BKDK | BURKE, DENNIS K INC | | | SCAC3 |
| 5740 | BKDM | BLACK DIAMOND TRUCKING | | | SCAC3 |
| 5741 | BKDM | BLACK DIAMOND TRUCKING | | | SCAC4 |
| 5742 | BKDP | BRAKE DIAPHRAGM INC | | | SCAC3 |
| 5743 | BKDQ | BENLIN-KNOWLTON DISTRIBUTION CTR IN | | | SCAC3 |
| 5744 | BKDQ | BLACK DIAMOND CARRIER INC | | | SCAC4 |
| 5745 | BKDS | B & K DELIVERY SERVICE | | | SCAC3 |
| 5746 | BKDS | BARSKI INDUSTRIES NINETEEN EIGHTY F | | | SCAC4 |
| 5747 | BKDT | BROOKS, DAVID TRUCKING | | | SCAC3 |
| 5748 | BKDU | JSC CTR OF OP OF SPACE GROUND BASED INF | | RUS | BIC |
| 5749 | BKDU | FSUE CTR OF OP OF SPACE | | | SCAC4 |
| 5750 | BKE | Airbrock Management and Charter Services, Inc. | Callsign: Air Brock, | USA | AVCODES |
| 5751 | BKEA | BECKER, ELIZABETH | | | SCAC3 |
| 5752 | BKEB | BECKER TRANSPORTATION | | | SCAC3 |
| 5753 | BKEC | BROKERAGE CO OF AMERICA INC | | | SCAC3 |
| 5754 | BKED | BAKER TRUCKING INC | | | SCAC3 |
| 5755 | BKEE | BUCKNER, EARL | | | SCAC3 |
| 5756 | BKEE | BERKELEY EXPRESS | | | SCAC4 |
| 5757 | BKEF | BAKER, FLOYD E TRUCKING | | | SCAC3 |
| 5758 | BKEG | BECKER TRUCKING INC | | | SCAC3 |
| 5759 | BKEH | BELK ENTERPRISE INC | | | SCAC3 |
| 5760 | BKEH | BLADES, KENNETH R | | | SCAC4 |
| 5761 | BKEI | BURKE, RAY TRUCKING | | | SCAC3 |
| 5762 | BKEI | BLACK EAGLE TRANSPORTATION INC | | | SCAC4 |
| 5763 | BKEJ | BURKE TRANSPORTATION | | | SCAC3 |
| 5764 | BKEK | BLAKE SHIPPING COMPANY | | | SCAC3 |
| 5765 | BKEL | BAKER LOGGING, INC | | | SCAC3 |
| 5766 | BKEM | BLAKE TRANSPORTATION | | | SCAC3 |
| 5767 | BKEM | BARBER, KENNETH | | | SCAC4 |
| 5768 | BKEN | BROKEN LANCE TRUCK LINES | | | SCAC3 |
| 5769 | BKEN | BULK EXPRESS LOGISTICS INC | | | SCAC4 |
| 5770 | BKEO | BURKE TOURS & CHARTER INC | | | SCAC3 |
| 5771 | BKEO | BLACKICENYC CO | | | SCAC4 |
| 5772 | BKEQ | BUCKEYE CO | | | SCAC3 |
| 5773 | BKER | BAKER MOTOR SERVICE INC | | | SCAC3 |
| 5774 | BKES | BANKERS COURIERS INC | | | SCAC3 |
| 5775 | BKET | BAKER TRUCKING COMPANY | | | SCAC3 |
| 5776 | BKET | BOKE TRADING INC | | | SCAC4 |
| 5777 | BKEV | BURKE TRANSPORT SERVICE INC | | | SCAC4 |
| 5778 | BKEW | BLANKET WRAP | | | SCAC3 |
| 5779 | BKEY | BERKELEY TRANSPORTATION COMPANY INC | | | SCAC4 |
| 5780 | BKF | BF-Lento Oy | Callsign: Bakerflight, | FIN | AVCODES |
| 5781 | BKF | Birkaflyg AB | Callsign: Birka, | S | AVCODES |
| 5782 | BKF | BF-Lento OY | | | ICAO1 |
| 5783 | BKFA | BLOCKER FARMS | | | SCAC3 |
| 5784 | BKFA | B & K FARMS INC | | | SCAC4 |
| 5785 | BKFC | BECK FUEL INC | | | SCAC4 |
| 5786 | BKFD | BROOKFIELD FARMS | | | SCAC3 |
| 5787 | BKFE | BLACKS TRANSFER LTD | | | SCAC4 |
| 5788 | BKFF | BUCKEYE FAST FREIGHT INC | | | SCAC3 |
| 5789 | BKFG | BAKER TRANSFER & STORAGE CO | | | SCAC3 |
| 5790 | BKFG | B & K FREIGHT LINES INC | | | SCAC4 |
| 5791 | BKFH | BECKER FREIGHT SYSTEMS LLC | | | SCAC4 |
| 5792 | BKFJ | BAKER TRUCKING | | | SCAC3 |
| 5793 | BKFJ | B & K FREIGHT | | | SCAC4 |
| 5794 | BKFK | BLAKE SHIPPING COMPANY | | | SCAC3 |
| 5795 | BKFM | BREKKE FARMS | | | SCAC4 |
| 5796 | BKFO | B & K FORWARDING INC | | | SCAC3 |
| 5797 | BKFO | BACK AND FORTH TRANSPORT | | | SCAC4 |
| 5798 | BKFP | BURCH, KE | | | SCAC4 |
| 5799 | BKFQ | BAR-K-FARMS | | | SCAC4 |
| 5800 | BKFR | BICKFORD, RAY | | | SCAC3 |
