| Code | Name | Region |
|---|---|---|
| PGTOI | Tolokiwa Island | |
| PGTON | Tonu | |
| PGTCJ | Torembi | |
| PGTOK | Torokina | |
| PGTSW | Tsewi | |
| PGTSI | Tsili Tsili | |
| PGTFI | Tufi | |
| PGTLP | Tumolbil | |
| PGULA | Ulamona | WBK |
| PGUMC | Umba | |
| PGUPR | Upiara | |
| PGSKC | Suki | |
| PGULE | Sule | |
| PGSUZ | Suria | |
| PGTBA | Tabibuga | |
| PGTBG | Tabubil | |
| PGTGL | Tagula | |
| PGTLW | Talasea | |
| PGTAM | Tambanum | ESW |
| PGTAI | Tambutyo Island | |
| PGTMI | Tami Island | MPL |
| PGTPI | Tapini | |
| PGTBQ | Tarabo | |
| PGTRJ | Tarakbits | |
| PGTIZ | Tari | |
| PGTSK | Taskul | |
| PGTAU | Taugu Island | |
| PGTUT | Tauta | |
| PGTWY | Tawa | |
| PGTKB | Tekadu | |
| PGTKW | Tekin | |
| PGSXW | Sauren | |
| PGSCH | Schauten | |
| PGSXH | Sehulea | |
| PGSBC | Selbang | |
| PGSPV | Sepik Plains | |
| PGSXA | Sialum | |
| PGSSS | Siassi | |
| PGSIL | Sila | |
| PGSWR | Silur | |
| PGSMJ | Sim | |
| PGSIM | Simbai | |
| PGNIS | Simberi Island | |
| PGSGB | Singaua | |
| PGSPL | Sipul | |
| PGSIZ | Sissano | |
| PGSWE | Siwea | |
| PGSOI | Sokar Island | |
| PGSPH | Sopu | |
| PGSMP | Stockholm |