Deuteronomy 3:4

“And we took all his cities at that time, etc.] Not only Edrei where the battle was fought, and Ashteroth his capital city, but all the rest in his kingdom: there was not a city which we took not from them; not one stood out, but all surrendered on summons; the number of which follows: three score cities; which was a large number for so small a country, and shows it to be well inhabited: all the region of Argob; which was a small province of the kingdom of Og in Bashan: Aben Ezra and Jarchi observe, that it was called after a man, i.e. whose name was Argob; the Targum of Onkelos names it Tracona, and the Targum of Jonathan Targona, the same with Trachonitis in Josephus and other authors; (see…”

“Threescore cities - Probably the cities of Jair in Bashan described in Deuteronomy 3:14 as Bashan-havoth-jair. All the region of Argob - The Hebrew word here rendered “region,” means literally “rope” or “cable”; and though undoubtedly used elsewhere in a general topographical sense for portion or district (e. g. Joshua 17:5), has a special propriety in reference to Argob (mod. Lejah). The name Argob means “stone-heap,” and is paraphrased by the Targums, Trachonitis Luke 3:1, or “the rough country;” titles designating the more striking features of the district. Its borders are compared to a rugged shore-line; hence, its description in the text as “the girdle of the stony country,” would seem…”

“3:4 Argob might be synonymous with Bashan or might refer to a heavily populated part of Bashan.”

“all his cities: Num 32:33-42; Jos 12:4, Jos 13:30, Jos 13:31 all the region: Kg1 4:13 Deuteronomy 3:5”