| 1 | CHT | CHATTANOOGA TRACTION COMPANY | | | PWRC |
| 2 | CHTA | CHUTAUGUQ STORAGE & TRANSFER COMPAN | | | SCAC3 |
| 3 | CHTC | CHATHAM TERMINAL COMPANY | | | PWRC |
| 4 | CHTC | CHALLIS TRANSPORTATION CO INC | | | SCAC3 |
| 5 | CHTC | CHAMPION TARGET COMPANY | | | SCAC4 |
| 6 | CHTD | CHENEY TRUCKING COMPANY | | | SCAC3 |
| 7 | CHTD | CHARTERAD ENTERPRISES LTD | | | SCAC4 |
| 8 | CHTE | CHASSILORS TERMINAL TRUCKING INC | | | SCAC3 |
| 9 | CHTE | CHASSILORS TERMINAL TUCKING INC | | | SCAC4 |
| 10 | CHTF | CHATFIELD TRUCKING INC | | | SCAC3 |
| 11 | CHTG | CHRISTISON TRUCKING | | | SCAC3 |
| 12 | CHTG | CHURCHILL TRANSPORT GROUP INC | | | SCAC4 |
| 13 | CHTH | CHATTAHOOCHEE INDUSTRIAL RAILROAD | | | SCAC3 |
| 14 | CHTH | CHALIA TRANSPORT | | | SCAC4 |
| 15 | CHTK | CHETS TRANSPORT, INC | | | SCAC3 |
| 16 | CHTL | CHURCHILL TRUCK LINES INC | | | SCAC3 |
| 17 | CHTL | CHTL LOGISTICS LLC (DIV CLAY HYDER | | | SCAC4 |
| 18 | CHTLT | Chládek & Tintěra, a.s. | | CZ | VKM |
| 19 | CHTM | CHATHAM EXPRESS | | | SCAC3 |
| 20 | CHTM | CHEMTOOL INC | | | SCAC4 |
| 21 | CHTN | CHATTERTON-TRUDEL EXPRESS CO | | | SCAC3 |
| 22 | CHTO | CHAPARRAL TRANSPORTATION COMPANY | | | SCAC3 |
| 23 | CHTO | CATRACHO TRANSPORT INC | | | SCAC4 |
| 24 | CHTP | CHASE TRANSPORTATION INC | | | SCAC3 |
| 25 | CHTP | CHICAGOTRANS ENTERPRISES INC | | | SCAC4 |
| 26 | CHTQ | CHAPMAN TRUCK LINE | | | SCAC3 |
| 27 | CHTR | CHARLESTON TRANSFER | | | SCAC3 |
| 28 | CHTR | CHASE TRANSPORT BROKERAGE LLC | | | SCAC4 |
| 29 | CHTS | East Penn Railroad LLC | added 10/2007 | | NAKINA |
| 30 | CHTS | Penn Eastern Rail Lines Inc. | added 4/1998; 7/2000-7/2005; eliminated 10/2007 | | NAKINA |
| 31 | CHTS | Penn Eastern Rail Lines Inc. | added 4/98; 7/2000 | | NRHS |
| 32 | CHTS | EAST PENN RAILROAD (PENN EASTERN RAIL LINES INC.) [CHESTER VALLEY RAILROAD] | | | PWRC |
| 33 | CHTS | Chester Valley Railroad (Penn Eastern Rail Lines) | | | RSRV |
| 34 | CHTSTU | Chernivtsi Trolleybus Managemen | City: Chernivtsi | UA | TRAFFIC |
| 35 | CHTT | Union Pacific Ry. Co. | added 4/1997; 7/2000-7/2005 | | NAKINA |
| 36 | CHTT | Missouri Pacific System | added 4/1981; 1/1994; eliminated 4/1997 | | NAKINA |
| 37 | CHTT | Chicago Heights Terminal Transfer R.R. Co. | 1/1975-1/1980 | | NAKINA |
| 38 | CHTT | Chicago Heights Terminal Transfer R.R. Co. | 1/75-1/80 | | NRHS |
| 39 | CHTT | Missouri Pacific System | added 4/81; 1/94; eliminated 4/97 | | NRHS |
| 40 | CHTT | Union Pacific Ry. Co. | added 4/97; 7/2000 | | NRHS |
| 41 | CHTT | UP [MISSOURI PACIFIC] [CHICAGO HEIGHTS TERMINAL TRANSFER RR] | | | PWRC |
| 42 | CHTT | Chicago Heights Terminal Transfer Railroad (Union Pacific Railroad) | | | RSRV |
| 43 | CHTT | CHICAGO HEIGHTS TERMINAL TRANSFER R | | | SCAC3 |
| 44 | CHTT | Chicago Heights Transfer Terminal | | USA | TRAFFIC |
| 45 | CHTU | COHERENT BOX INDUSTRY CO., LTD | | HK | BIC |
| 46 | CHTU | CHT GMBH | | | SCAC4 |
| 47 | CHTV | CHARLSEN TRUCKING SERVICE INC | | | SCAC3 |
| 48 | CHTV | CHTL TRUCKING LLC | | | SCAC4 |
| 49 | CHTW | CHETS TOW SERVICE INC | | | SCAC3 |
| 50 | CHTX | Conshohocken Rail LLC | eliminated 4/2008 | | NAKINA |
| 51 | CHTX | Charlotte Refining Co. | 1/1952 | | NAKINA |
| 52 | CHTX | Charlotte Refining Co. | Jan-52 | | NRHS |
| 53 | CHTX | CHARLOTTE REFINING CO. | | | PWRC |
| 54 | CHTY | CLARK, HERBERT TRUCKING CO | | | SCAC3 |
| 55 | CHTY | CHA TRUCKING | | | SCAC4 |
