| Acronym | Meaning |
| FTP | File Transfer Protocol |
| PABX | Private Automated Branch EXchange (company Phone System) |
| MID | Midway Islands (ISO 3166 Trigram; Obsolete 1986) |
| IVIS | Inter-Vehicle Information System |
| PZ | Panama Canal Zone (ISO 3166 Digram; Obsolete 1980) -Pickup Zone |
| MLSR | Missing |
| MTF | Medical Treatment Facility - Message Text Format |
| KMF | Comoro Franc (ISO 4217 Currency Code) |
| JZ | Joint Zone |
| MGA | Malagasy Ariary (ISO 4217 Currency Code) |