| 10101 | CMIM | CAMIONNAGE MARCOLT INC/MARCOLT TRUC | | | SCAC4 |
| 10102 | CMIN | CAMLEN INC | | | SCAC4 |
| 10103 | CMIO | C M I FREIGHT-TRANS INC | | | SCAC3 |
| 10104 | CMIP | CARROLL MILL COMPANY INC | | | SCAC3 |
| 10105 | CMIP | CMG INTERMODAL INC | | | SCAC4 |
| 10106 | CMIQ | COLUMBIA CARTAGE CO INC | | | SCAC3 |
| 10107 | CMIQ | C & M INDUSTRIES INCORPORATED | | | SCAC4 |
| 10108 | CMIR | COMAIR INC | | | SCAC4 |
| 10109 | CMIS | CARPIO MUNGUIA, ISMAEL | | | SCAC4 |
| 10110 | CMIT | C MILE TRANSPORT LTD | | | SCAC3 |
| 10111 | CMIT | CMC TRANSPORTATION INC | | | SCAC4 |
| 10112 | CMIU | Intermobile Container LLC | | | RSRV |
| 10113 | CMIU | COMI CONSTRUCTIONS METALLIQUES INDU | | | SCAC3 |
| 10114 | CMIU | COMI CONSTRUCTIONS METALLIQUES INDU | | | SCAC4 |
| 10115 | CMIV | C & M TRUCKING INC | | | SCAC3 |
| 10116 | CMIW | C & M INTERNATIONAL INC | | | SCAC3 |
| 10117 | CMIX | Central Power & Lime, Inc. | added 10/2006 | | NAKINA |
| 10118 | CMIX | Consolidated Minerals, Inc. | added 1/1990; 1/1994; eliminated 1/1996; 7/2000-7/2005 (not listed) | | NAKINA |
| 10119 | CMIX | Consolidated Minerals, Inc. | added 1/90; 1/94; eliminated 1/96; 7/2000 | | NRHS |
| 10120 | CMIX | *CONSOLIDATED MINERALS, INC. | | | PWRC |
| 10121 | CMIX | +CENTRAL POWER & LIME, INC. | | | PWRC |
| 10122 | CMIX | Consolidated Minerals | | | RSRV |
| 10123 | CMIX | CENTRAL POWER & LIME INC | | | SCAC4 |
| 10124 | CMIY | CMI PERMANENT MOLD INC | | | SCAC3 |
| 10125 | CMIY | C M I TRANSPORTATION INC | | | SCAC4 |
| 10126 | CMIZ | CHAMPION MILL | | | PWRC |
| 10127 | CMJ | Mudanjiang General Aviation Co. | Callsign: Mudanjiang, | PRC | AVCODES |
| 10128 | CMJ | Comfort Jet Services | Callsign: Comfort Jet, A Subsidiary of Comfort Jet Aviation. Ceased operations. | TG | AVCODES |
| 10129 | CMJ | Mudanjiang General Aviation | | | ICAO1 |
| 10130 | CMJC | C & M TRUCKING | | | SCAC4 |
| 10131 | CMJD | COMMERCIA | | | SCAC4 |
| 10132 | CMJE | CABRAS MARINE CORPORATION | | | SCAC4 |
| 10133 | CMJF | CRATE MASTERS | | | SCAC3 |
| 10134 | CMJG | CRUZ MADERA, JOSE MIGUEL | | | SCAC4 |
| 10135 | CMJH | CORD MOVING MEMPHIS | | | SCAC4 |
| 10136 | CMJI | COLLINS, MICHAEL J INC | | | SCAC3 |
| 10137 | CMJK | CARDENAS, MIJA TRUCKING INC | | | SCAC4 |
| 10138 | CMJM | CAL-MAINE FOODS INC | | | SCAC3 |
| 10139 | CMJN | CMJ INC | | | SCAC4 |
| 10140 | CMJO | CHINOOK MOVING SERVICES INC | | | SCAC4 |
| 10141 | CMJQ | COMACT | | | SCAC4 |
| 10142 | CMJR | CONTRERAS , M J TRUCKING | | | SCAC4 |
| 10143 | CMJT | CHISM, JIM TRUCKING CO | | | SCAC3 |
| 10144 | CMJV | CSAD MANUFACTURING INDUSTRIES | | | SCAC4 |
| 10145 | CMJW | CORIGLIANO, M J TOWING INC | | | SCAC4 |
| 10146 | CMJY | COMERCIALIZADORA MAD DE JUAREZ SA D | | | SCAC4 |
| 10147 | CMK | Chernomor-Avia | Callsign: Cheravia, | RUS | AVCODES |
| 10148 | CMK | Cosmos Aviation Services (Private) Ltd. | IATA: MO, Callsign: Comos Lanka, | CL | AVCODES |
| 10149 | CMK | Chernomor-Avia | | | ICAO1 |
| 10150 | CMKA | CMS TRUCKING | | | SCAC3 |
| 10151 | CMKA | CARMONA TRUCKING | | | SCAC4 |
| 10152 | CMKB | CAMBE TRUCKING INC | | | SCAC4 |
| 10153 | CMKC | CONTRACT MARKETING RESOURCES | | | SCAC3 |
| 10154 | CMKD | CLERMONT TRUCKING INC | | | SCAC4 |
| 10155 | CMKE | CUNNINGHAM, MARK E | | | SCAC3 |
| 10156 | CMKG | CEMAK TRUCKING INC | | | SCAC3 |
| 10157 | CMKG | CUMMINGS TRUCKING | | | SCAC4 |
| 10158 | CMKH | CATES MILK HAULING INC | | | SCAC3 |
| 10159 | CMKH | CAMPANALE TRUCKING INC | | | SCAC4 |
| 10160 | CMKI | COMTRAK, INC. | | | PWRC |
| 10161 | CMKI | COMTRAK INC | | | SCAC3 |
| 10162 | CMKI | COMTRAK LOGISTICS INC | | | SCAC4 |
| 10163 | CMKJ | CLARK, MIKE & SONS INC | | | SCAC3 |
| 10164 | CMKK | CAROLINA MILK CARRIERS INC | | | SCAC3 |
| 10165 | CMKK | CEMAK TRUCKING | | | SCAC4 |
| 10166 | CMKM | CARMACK MOVING INC | | | SCAC3 |
| 10167 | CMKN | COMSTOCK, ROGER D & SONS | | | SCAC3 |
| 10168 | CMKO | CARLSON MARKING CO | | | SCAC3 |
| 10169 | CMKP | COMMERCIAL PRODUCTS | | | SCAC3 |
| 10170 | CMKP | C & M TRUCKING LLC | | | SCAC4 |
| 10171 | CMKQ | CONSOLIDATED MILK LINES | | | SCAC3 |
| 10172 | CMKR | COMSTOCK TRANSPORTATION INC | | | SCAC3 |
| 10173 | CMKR | COMSTOCK TRANSPORTATION INC | | | SCAC4 |
| 10174 | CMKS | CHEMICAL MARKETING SERVICES INC | | | SCAC3 |
| 10175 | CMKS | ČMKS - Jihlavská lokomotivní společnost s.r.o. | | CZ | VKM |
| 10176 | CMKT | COMSTOCK TRUCKING | | | SCAC3 |
| 10177 | CMKT | CENTRAL MARKETING TRANSPORT LLC | | | SCAC4 |
| 10178 | CMKV | COLONIAL MINUTEMAN | | | SCAC3 |
| 10179 | CMKV | CAMPBELL TRUCKING INC | | | SCAC4 |
| 10180 | CMKW | CMT | | | SCAC4 |
| 10181 | CMKX | Countrymark Cooperative, Inc. | added 1/1993; 1/1994; eliminated 4/1995 | | NAKINA |
| 10182 | CMKX | Countrymark Cooperative, Inc. | added 1/93; 1/94; eliminated 4/95 | | NRHS |
| 10183 | CMKX | COUNTRYMARK COOPERATIVE, INC. | | | PWRC |
| 10184 | CMKX | COUNTRYMARK COOPERATIVE, INC. | | | SCAC4 |
| 10185 | CMKY | CUMMINS TRUCKING | | | SCAC3 |
| 10186 | CMKY | CAMERON TRUCKING COMPANY INC | | | SCAC4 |
| 10187 | CML | Commander Air Charter Limited | Callsign: Commandair, | CDN | AVCODES |
| 10188 | CML | Community Airlines | Callsign: Community, | EAT | AVCODES |
| 10189 | CML | Commander Air Charter | | | ICAO1 |
| 10190 | CML | CAPITAL TRAILWAYS | | | SCAC4 |
| 10191 | CMLA | COOPER MOTOR LINES, INC | | | SCAC3 |
| 10192 | CMLA | CREAMLAND DAIRIES INC | | | SCAC4 |
| 10193 | CMLB | C M L FREIGHT SYSTEMS INC | | | SCAC3 |
| 10194 | CMLB | CAMPOS ALVARADO, ABRAHAM | | | SCAC4 |
| 10195 | CMLC | CONE MILLS CORPORATION | | | SCAC3 |
| 10196 | CMLF | CHEMOIL CORPORATION | | | SCAC3 |
| 10197 | CMLG | COMMERCIAL LEASING SERVICES | | | SCAC3 |
| 10198 | CMLH | CARGO MASTERS LLC | | | SCAC4 |
| 10199 | CMLI | CAMBRIDGE-LEE INDUSTRIES INC | | | SCAC3 |
| 10200 | CMLI | CIOT MONTREAL INC | | | SCAC4 |
