| 5601 | AGRX | Agrifos | | | RSRV |
| 5602 | AGRX | AGRI-EMPRESA INC | | | SCAC4 |
| 5603 | AGRY | AGGREGATES RAILWAY COMPANY | | | SCAC3 |
| 5604 | AGRZ | AGRA PROCESSING | | | PWRC |
| 5605 | AGS | Air Gambia | Callsign: Atas, | WAG | AVCODES |
| 5606 | AGS | Air Go Airlines S.A. | IATA: 4A, Callsign: Airgo Cargo, IATA Prefix: 454, Commenced operations in September 2008. Ceased operations in October 2011. | GR | AVCODES |
| 5607 | AGS | AOT Ground Aviation Services Co., Ltd. | Callsign: Blue Port, | T | AVCODES |
| 5608 | AGS | Alabama Great Southern R.R. Co. | 1/1975-7/2005 | | NAKINA |
| 5609 | AGS | Alabama Great Southern R.R. Co. | 1/75-7/2000 | | NRHS |
| 5610 | AGS | ALABAMA GREAT SOUTHERN RR | | | PWRC |
| 5611 | AGS | Alabama Great Southern Railroad | | | RSRV |
| 5612 | AGSB | ACCELERATED LOGISTICS INC | | | SCAC4 |
| 5613 | AGSD | ATLANTIC & GULF STEVEDORES OF ALABA | | | SCAC3 |
| 5614 | AGSG | ANGLIA SHIPPING COMPANY LIMITED | | | SCAC3 |
| 5615 | AGSH | ANGLOMAR SHIPPING COMPANY LIMITED | | | SCAC3 |
| 5616 | AGSI | ARGONAUT SHIPPING CORPORATION | | | SCAC3 |
| 5617 | AGSI | ABS GLOBAL SERVICES INC | | | SCAC4 |
| 5618 | AGSJ | AGS WORLD TRANSPORT LP | | | SCAC4 |
| 5619 | AGSK | ALL GIRLS TRANSPORTATION & LOGISTIC | | | SCAC4 |
| 5620 | AGSL | ALDER GULCH SHORT LINE RWY. | | | PWRC |
| 5621 | AGSL | ALLSTATES GOLD SERVICES LTD | | | SCAC3 |
| 5622 | AGSM | AGS GOLD COAST INC | | | SCAC3 |
| 5623 | AGSM | AG SHIELD MFG | | | SCAC4 |
| 5624 | AGSN | AGRELLA & SON | | | SCAC3 |
| 5625 | AGSO | AGWAY SYSTEMS INCORPORATED | | | SCAC3 |
| 5626 | AGSO | AGWAY SYSTEMS INCORPORATED | | | SCAC4 |
| 5627 | AGSP | AG SUPPLY INC | | | SCAC3 |
| 5628 | AGSP | AGS TRANSPORT INC | | | SCAC4 |
| 5629 | AGSQ | AGASSIZ TRAILERS | | | SCAC4 |
| 5630 | AGSR | AG RESOURCES | | | SCAC4 |
| 5631 | AGSS | AGS SOUTHERN STAR INC | | | SCAC3 |
| 5632 | AGSS | A G ENTERPRISES | | | SCAC4 |
| 5633 | AGST | AUGUST TRANSPORT INC | | | SCAC4 |
| 5634 | AGSU | LINDE GAS AB | | GB | BIC |
| 5635 | AGSU | ARTHUR GUINNESS & SON CO., LTD | | | SCAC3 |
| 5636 | AGSU | AGA GAS AB | | | SCAC4 |
| 5637 | AGSV | ASHLAND GAS SERVICE INC | | | SCAC3 |
| 5638 | AGSX | Alabama-Georgia Syrup Co. | 1/1952; eliminated 10/1953 | | NAKINA |
| 5639 | AGSX | Alabama-Georgia Syrup Co. | 1/52; eliminated 10/53 | | NRHS |
| 5640 | AGSX | ALABAMA-GEORGIA SYRUP CO. | | | PWRC |
| 5641 | AGSY | AGS EURASIA LINE | | | SCAC4 |
| 5642 | AGT | Amadeus Global Travel Distribution, S.A. | IATA: 1A, Changed from Amadeus Marketing S.A. Name changed to Amadeus IT Group SA. Computer Reservation System | E | AVCODES |
| 5643 | AGT | Amadeus Marketing, S.A. | IATA: 1A, Changed to Amadeus Global Travel Distribution S.A. Computer Reservation System | E | AVCODES |
| 5644 | AGT | Amadeus IT Group SA. | IATA: 1A, Callsign: Amadeus, Changed from Amadeus Marketing S.A. Name changed from Amadeus Global Travel Distribution, S.A. Computer Reservation System | E | AVCODES |
| 5645 | AGT | Amadeus Global Travel Distribution | IATA: 1A | | ICAO1 |
| 5646 | AGT | Allgemeine Gleis- und Tiefbau- Bauunternehmung GmbH | | DE | VKM |
| 5647 | AGTA | AMERICAN GENERAL TRANSPORT LLC | | | SCAC4 |
| 5648 | AGTB | AMERICAN GRAIN TRIMMERS INCORPORATE | | | SCAC3 |
| 5649 | AGTB | AGROINDUSTRIAS TOMBELL S A DE C V | | | SCAC4 |
| 5650 | AGTC | ANGELINA TRUCKING COMPANY | | | SCAC3 |
| 5651 | AGTC | ATG TRANSPORTATION LLC | | | SCAC4 |
| 5652 | AGTE | AGI TRANSPORT INC | | | SCAC4 |
| 5653 | AGTF | ARGUS TRANSFER & STORAGE INC | | | SCAC3 |
| 5654 | AGTF | ARGUS TRANSFER & STORAGE INC | | | SCAC4 |
| 5655 | AGTG | AG TRUCKING INC | | | SCAC3 |
| 5656 | AGTH | ANDERSON, GARITH R TRUCKING INC | | | SCAC3 |
| 5657 | AGTH | ANDERSON, GARITH R TRUCKING INC | | | SCAC4 |
| 5658 | AGTI | AUGIES TRUCKING SERVICE | | | SCAC3 |
| 5659 | AGTJ | AGRI-TEL TRANSPORTATION INC | | | SCAC4 |
| 5660 | AGTK | APEX GW TRUCKING CORP | | | SCAC4 |
| 5661 | AGTM | ALL GIRLS TRUCKING INC | | | SCAC4 |
| 5662 | AGTN | AGRI TRANSPORT INC | | | SCAC3 |
| 5663 | AGTN | AGRI-TRANS | | | SCAC4 |
| 5664 | AGTO | AGRUTTO CARTAGE INC | | | SCAC3 |
| 5665 | AGTQ | ALL GOOD TERMINAL WAREHOUSE | | | SCAC3 |
| 5666 | AGTQ | AGUILERA TRANSFER | | | SCAC4 |
| 5667 | AGTR | A & G TRANSPORT INC | | | SCAC3 |
| 5668 | AGTS | AGRI-TECH SERVICE INC | | | SCAC3 |
| 5669 | AGTS | AGRI TECH SERVICE INC | | | SCAC4 |
| 5670 | AGTT | AGENTS TRANSPORT | | | SCAC3 |
| 5671 | AGTU | AQUA GULF TRANSPORT INC. | | | SCAC3 |
| 5672 | AGTU | AQUA GULF TRANSPORT INC | | | SCAC4 |
| 5673 | AGTV | AG TRANSPORTATION & MARKETING INC | | | SCAC3 |
| 5674 | AGTV | AGRI TRANS SERVICES | | | SCAC4 |
| 5675 | AGTW | AUGUSTA TOWING CO INC | | | SCAC3 |
| 5676 | AGTW | ARMSTRONG TRANSPORTATION & TRAILERS | | | SCAC4 |
| 5677 | AGTX | AmeriGas Propane L.P. | added 10/1996; eliminated 7/1999 | | NAKINA |
| 5678 | AGTX | Anderson & Gustafson, Inc. (C.A. Gufstafson Co., Inc.) | 7/1923 | | NAKINA |
| 5679 | AGTX | Anderson & Gustafson, Inc. | 8/1920 | | NAKINA |
| 5680 | AGTX | AmeriGas Propane L.P. | added 10/96; eliminated 7/99 | | NRHS |
| 5681 | AGTX | *ANDERSON & GUSTAFSON, INC. (C. A. GUFTAFSON CO., INC.) | | | PWRC |
| 5682 | AGTX | *AMERIGAS PROPANE LP | | | PWRC |
| 5683 | AGTY | ANDERSEN GRAIN & TRUCKING CO | | | SCAC3 |
| 5684 | AGTY | AG TRANSPORT SERVICE | | | SCAC4 |
| 5685 | AGU | Open Joint Stock Company "Angara Airlines" | IATA: 2G, Callsign: Sarma, | RUS | AVCODES |
| 5686 | AGU | Air Guadeloupe | IATA: TX, Callsign: Air Guadeloupe, | GP | AVCODES |
| 5687 | AGU | Angara Airlines | | | ICAO1 |
| 5688 | AGUA | AGUA DULCE COMPANIA NAVIERA S A | | | SCAC3 |
| 5689 | AGUC | AG SUPPLY OF WENATCHEE | | | SCAC4 |
| 5690 | AGUE | AGUIRRE TRUCKING | | | SCAC3 |
| 5691 | AGUG | ATG TRUCKING | | | SCAC4 |
| 5692 | AGUH | AUTOTRANSPORTES GUTIERREZ | | | SCAC4 |
| 5693 | AGUI | AGUILAR, DAVID G | | | SCAC3 |
| 5694 | AGUL | AGRICULTURAL TRANSPORTATION ASSOCIATION OF ILLINOIS | | | SCAC3 |
| 5695 | AGUL | AGRICULTURAL TRANSPORTATION ASSOCIA | | | SCAC4 |
| 5696 | AGUM | ARGUERO MANCILLA, LUIS ENRIQUE | | | SCAC4 |
| 5697 | AGUN | AGRICULTURAL TRANSPORT INC | | | SCAC4 |
| 5698 | AGUQ | AGUIAR, ERNEST | | | SCAC3 |
| 5699 | AGUR | AGUIAR, ROBERT TRUCKING | | | SCAC3 |
| 5700 | AGUR | AGUILAR, M TRANSPORT | | | SCAC4 |
