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Cognomen Promfang (Promfang ) , throughout the world, is a very rare last name. The family name Promfang is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Promfang | Thailand |
Sukanya, Pantila, Pimpisa, Wichayen, and Nanthaphak