| Carrier Code | Carrier Name |
| PRLE | PRODROMOS LINES S A |
| PRMR | PREMIER LTD |
| PRMU | PUERTO RICO MARITIME SHIPPING AUTHORITY |
| PRQL | PUERTO RICO LINE INC |
| PRQS | PRECIOUS SHIPPING |
| PRRE | PANKAR MARITIME S A |
| PRRU | P & R RENTALS BV |
| PRSG | PRISM SHIPPING LTD |
| PRSI | PRECISION SHIPPING LTD |
| PRSU | PRIME SOURCE HOLDING LTD |
| PRTU | PORTLINE-TRANSPORTES MARITIMOS |
| PRUB | PREMUDA BULK LTD |
| PRUU | MARINE VENTURES LTD |
| PRZC | PEREZ & CIA DE PUERTO RICO INC |
| PSCA | PANTHEON SHIPPING COMPANY S A |
