Its exact location is unknown.
It appears when listing the foreign peoples who filed a petition opposing Zerubbabel when he tried to rebuild the temple.
Ezra 4:9Rehum the commander, Shimshai the scribe, and the rest of their associates—the people of Dina, the people of Apharsath, the people of Tarpel, the people of Apharsath, the people of Erech, the people of Babylon, the people of Susa, the people of Deha, the people of Elam,