| 6601 | TNEL | TRANSPORT NELSON ST-LAURENT INC | | | SCAC4 |
| 6602 | TNEO | TRANSNET INC | | | SCAC4 |
| 6603 | TNER | Texas Northeastern Division, Mid-Michigan R.R., Inc. | added 1/1991; 1/1994-7/2005 | | NAKINA |
| 6604 | TNER | Texas Northeastern Division, Mid-Michigan R.R., Inc. | added 1/91; 1/94-7/2000 | | NRHS |
| 6605 | TNER | TEXAS NORTHEASTERN DIV., MID-MICHIGAN RAILROAD, INC. | | | PWRC |
| 6606 | TNER | Texas Northeastern Division Mid-Michigan Railroad | | | RSRV |
| 6607 | TNER | TEXAS NORTHEASTERN DIVISION MID-MIC | | | SCAC4 |
| 6608 | TNES | TRANSPORTES NETASA | | | SCAC4 |
| 6609 | TNEU | TRANSNAV LINE | | | SCAC1 |
| 6610 | TNEU | TRANSNAVE LINE | | | SCAC4 |
| 6611 | TNEU | Tramways de Neuchâtel | Real: TN, City: Neuchâtel | CH | TRAFFIC |
| 6612 | TNEV | TEAM NELSON | | | SCAC4 |
| 6613 | TNEY | TONEY TRANSPORTATION | | | SCAC4 |
| 6614 | TNEZ | TRANSPORTES NAVIEROS ECUATORIANOS | | | SCAC4 |
| 6615 | TNF | Tatneftaero | Callsign: Tatneft, | RUS | AVCODES |
| 6616 | TNF | Transafricaine S.A. | IATA Prefix: 917, Accounting Code 917 recalled by IATA | BF | AVCODES |
| 6617 | TNF | Transafricaine | | | ICAO1 |
| 6618 | TNFA | TWO NINE FIVE SIX FOUR NINE (295649 | | | SCAC4 |
| 6619 | TNFG | TM TRADING INC | | | SCAC4 |
| 6620 | TNFH | TRANSFREIGHT INC | | | SCAC4 |
| 6621 | TNFJ | T N S TRANSPORT LLC | | | SCAC4 |
| 6622 | TNFL | TRANSFER ALARCON | | | SCAC4 |
| 6623 | TNFN | TWO NINE FIVE FIVE SEVEN ZERO (2955 | | | SCAC4 |
| 6624 | TNFO | THREE NINE FOUR FOUR ZERO FIVE ONE | | | SCAC4 |
| 6625 | TNFS | TWO NINE FOUR SIX-NINE SIX SEVEN TH | | | SCAC4 |
| 6626 | TNFT | TRANSFRONTERA SA DE CV | | | SCAC4 |
| 6627 | TNFU | TANFAC INDUSTRIES LTD | | IND | BIC |
| 6628 | TNFU | TANFAC INDUSTRIES LTD | | | SCAC4 |
| 6629 | TNFW | TERRACE TRANSPORTATION LLC | | | SCAC4 |
| 6630 | TNFY | TANGENTFLOW INC | | | SCAC4 |
| 6631 | TNG | Tennessee Air National Guard, 164th Airlift Group | | USA | AVCODES |
| 6632 | TNG | Tennessee Air National Guard 164th Airlift Group | | | ICAO1 |
| 6633 | TNGA | TRUE NORTH GALLERY OF CIRCUMPOLAR A | | | SCAC4 |
| 6634 | TNGC | TEXAS INTERNATIONAL GAS & OIL | | | SCAC4 |
| 6635 | TNGD | TRIANGLE DIE & TOOL CO LTD | | | SCAC4 |
| 6636 | TNGE | T & G | | | SCAC4 |
| 6637 | TNGG | TITAN GLOBAL LOGISTICS INC | | | SCAC4 |
| 6638 | TNGI | TRANSGAB INC | | | SCAC4 |
| 6639 | TNGJ | TRIANGLE-J INC | | | SCAC4 |
| 6640 | TNGK | TRITON LOGGIN INC | | | SCAC4 |
| 6641 | TNGL | TRANSPORTES NORTE DE BC S DE RL DE | | | SCAC4 |
| 6642 | TNGM | TURNER GAS COMPANY | | | SCAC4 |
| 6643 | TNGO | TANGO | | | SCAC4 |
| 6644 | TNGP | TRANSPORTES GAP | | | SCAC4 |
| 6645 | TNGR | TNG TRANSPORTATION SERVICES | | | SCAC4 |
| 6646 | TNGS | TRANSGLOBE EXPRESS | | | SCAC4 |
| 6647 | TNGT | T M T INC | | | SCAC4 |
| 6648 | TNGW | TRULINE LOGISTICS INC | | | SCAC4 |
| 6649 | TNGX | Texas Natural Gasoline Corp. | 1/1952-10/1957; eliminated 7/1960 | | NAKINA |
| 6650 | TNGX | Union Texas Natural Gas Corp. | added 7/1960; 4/1961; eliminated 7/1962 | | NAKINA |
| 6651 | TNGX | Union Texas Petroleum, a Division of Allied Chemical Corp. | added 7/1962; eliminated 7/1964 | | NAKINA |
| 6652 | TNGX | Texas Natural Gasoline Corp. | 1/52-10/57; eliminated 7/60 | | NRHS |
| 6653 | TNGX | Union Texas Natural Gas Corp. | added 7/60; 4/61 | | NRHS |
| 6654 | TNGX | Union Texas Petroleum, a Division of Allied Chemical Corp. | eliminated 7/64 | | NRHS |
| 6655 | TNGX | UNION TEXAS DIV., ALLIED CHEMICAL CORP. [TEXAS NATURAL GASOLINE CORP.] | | | PWRC |
| 6656 | TNGY | TANNER, C M GROCERY COMPANY INC | | | SCAC4 |
| 6657 | TNH | Turnhouse Flying Club | Callsign: Turnhouse, | GB | AVCODES |
| 6658 | TNHB | TOP NOTCH TRUCKING | | | SCAC4 |
| 6659 | TNHC | TRANCY | | | SCAC4 |
| 6660 | TNHD | TRANSPORT HENRI DION INC | | | SCAC4 |
| 6661 | TNHE | TRANSPORT HENDY INC | | | SCAC4 |
| 6662 | TNHI | TRANAVI | | | SCAC4 |
| 6663 | TNHK | THUNDER ROAD TRANSPORTATION | | | SCAC4 |
| 6664 | TNHL | TRANSPORT PROS LLC | | | SCAC4 |
| 6665 | TNHM | TNYR | | | SCAC4 |
| 6666 | TNHN | T & N TRANSPORTATION | | | SCAC4 |
| 6667 | TNHR | Three Notch R.R. Co., Inc. | added 4/2005; 7/2005 | | NAKINA |
| 6668 | TNHR | THREE NOTCH RAILROAD CO., INC. | | | PWRC |
| 6669 | TNHR | Three Notch Railroad | | | RSRV |
| 6670 | TNHR | THREE NOTCH RAILWAY LLC | | | SCAC4 |
| 6671 | TNHT | TNT TRANSPORT | | | SCAC4 |
| 6672 | TNHY | THIESSEN, H L TRANSPORT | | | SCAC4 |
| 6673 | TNI | Transair International Linhas Aereas Ltda. | Callsign: Transinter, | BR | AVCODES |
| 6674 | TNI | Schwans Shared Services, LLC | Callsign: Inca, | USA | AVCODES |
| 6675 | TNI | Transair International Linhas Aereas | | | ICAO1 |
| 6676 | TNIA | TRANSPORTES IMPERIAL | | | SCAC4 |
| 6677 | TNIB | TRANSPORTES NIEBLA (MX-381363) | | | SCAC4 |
| 6678 | TNIC | TRANSPORTES INTERNACIONALES GARCIA | | | SCAC4 |
| 6679 | TNID | TRANSPORTES NIETO | | | SCAC4 |
| 6680 | TNIH | TAURUS NATURAL INC | | | SCAC4 |
| 6681 | TNIK | TRANSPORTES NICKS | | | SCAC4 |
| 6682 | TNIN | TRI-NATIONAL INC | | | SCAC4 |
| 6683 | TNIO | TRANSPORT I MARIN | | | SCAC4 |
| 6684 | TNIP | TRANSPORTES INTERNACIONALES MATIC C | | | SCAC4 |
| 6685 | TNIT | TRINITY LOGISTICS | | | SCAC4 |
| 6686 | TNIU | TN AMERICAS LLC | | USA | BIC |
| 6687 | TNIU | Areva Inc. | | | RSRV |
| 6688 | TNIV | THRUTAINERS INTERNATIONAL | | | SCAC4 |
| 6689 | TNJ | Transport of New Jersey | | USA | TRAFFIC |
| 6690 | TNJI | TRI-NET (JAPAN) INC | | | SCAC4 |
| 6691 | TNJK | T N J TRUCKING | | | SCAC4 |
| 6692 | TNJN | TRANSPORTES JONES | | | SCAC4 |
| 6693 | TNJQ | TRANSPORTES JESAB | | | SCAC4 |
| 6694 | TNJR | TRANSPORTES JER | | | SCAC4 |
| 6695 | TNK | Alfa Line | Callsign: Tengo, | KZ | AVCODES |
| 6696 | TNK | Airmax Airlines, Inc. | Callsign: Tonka, | USA | AVCODES |
| 6697 | TNKA | TANKERS INTL LLC LONDON ENGLAND | | | SCAC4 |
| 6698 | TNKC | TRANSPORTATION NETWORK CARRIERS LLC | | | SCAC4 |
| 6699 | TNKE | TRIPLE A TRANSPORTATION INC | | | SCAC4 |
| 6700 | TNKG | TNE TRUCKING INC | | | SCAC4 |
