Charles Ellicott Commentary Joshua 19:34

"and the border turned westward to Aznoth-tabor, and went out from thence to Hukkok; and it reached to Zebulun on the south, and reached to Asher on the west, and to Judah at the Jordan toward the sunrising." — Joshua 19:34 (ASV)

Hukkok (Yakûk, sheet 6), in the same region as the above, but a little further north, near the northeast boundary of Zebulun. Of Judah by the Jordan, we can say nothing with certainty.