Apharsachites in the Bible

Ezra 5:6 The copy of the letter that Tatnai, governor on this side the river, and Shetharboznai, and his companions the Apharsachites, which were on this side the river, sent unto Darius the king:
Ezra 6:6 Now therefore, Tatnai, governor beyond the river, Shetharboznai, and your companions the Apharsachites, which are beyond the river, be ye far from thence:
2 Kings 17 In the twelfth year of Ahaz king of Judah began Hoshea the son of Elah to reign in Samaria over Israel nine years. 2 And he did that which was evil in the sight of the LORD, but not as the kings of Israel that were before him. 3 Against him came up Shalmaneser king of Assyria; and Hoshea became his servant, and gave him presents. 4 And the king of Assyria found conspiracy in Hoshea: for he had sent messengers to So king of Egypt, and brought no present to the king of Assyria, as he had done year by year: therefore the king of Assyria shut him up, and bound him in prison. ...