This is what Moses had given to the clans of the tribe of Gad:

Joshua 13:23
And the border of the Reubenites was the bank of the Jordan. This was the inheritance of the clans of the Reubenites, including the cities and villages.

Joshua 13:25
The territory of Jazer, all the cities of Gilead, and half the land of the Ammonites as far as Aroer, near Rabbah;

Ezekiel 48:27
And Gad will have one portion bordering the territory of Zebulun from east to west.

And Moses gave inheritance to the tribe of Gad, even to the children of Gad according to their families.