| 1 | MFR | Midline Air Freight | Callsign: Midline Freight, | USA | AVCODES |
| 2 | MFR | Midline Air Freight | | | ICAO1 |
| 3 | MFRB | MDS FREIGHT | | | SCAC4 |
| 4 | MFRD | MOUNTAIRE FARMS OF DELAWARE INC | | | SCAC4 |
| 5 | MFRF | MILFORD TRANS CO INC | | | SCAC4 |
| 6 | MFRG | MARSHALL FREIGHT INC | | | SCAC4 |
| 7 | MFRL | MERCHANTS FREIGHT LINE, INC | | | SCAC1 |
| 8 | MFRL | MERCHANTS FREIGHT LINE INC | | | SCAC4 |
| 9 | MFRN | M & F TRANSPORTATION INC | | | SCAC4 |
| 10 | MFRO | MORRIS TRANSFER | | | SCAC4 |
| 11 | MFRQ | METZ FIRE & RESCUE SUPPLY | | | SCAC4 |
| 12 | MFRT | MERCURY FREIGHT, INC | | | SCAC1 |
| 13 | MFRT | MARFRUT | | | SCAC4 |
| 14 | MFRU | MARFRET S.A. | | F | BIC |
| 15 | MFRU | MARFRET S A | | | SCAC4 |
