Area Codes in Houaphanh Province
| Area Code▲ | City↕ | Administrative Region↕ | City Population↕ | Country/Region | Timezone |
|---|---|---|---|---|---|
| 64 | — | Houaphanh Province | 286,383 | Laos | Asia/Vientiane |
| Area Code▲ | City↕ | Administrative Region↕ | City Population↕ | Country/Region | Timezone |
|---|---|---|---|---|---|
| 64 | — | Houaphanh Province | 286,383 | Laos | Asia/Vientiane |