According to Westermann these five are all personal names. At least it cannot be proved that they are place names.

Chesed (kesed in Hebrew) is thought to be the name from which the Chaldeans (Hebrew kasdim) got their name.

Hazo is a name that was found on an inscription.

Pildash and Jidlaph are unknown.

Bethuel: see next verse.

Quoted with permission from Reyburn, William D. and Fry, Euan McG. A Handbook on Genesis. (UBS Helps for Translators). New York: UBS, 1997. For this and other handbooks for translators see here .