ONB operates with more than 120 branches which are mostly located in countryside Mindanao. All branches of the Bank bear the image of a bigger, better and BDO-powered ONB.

This branch network is complemented by over 220 ATMs. With the system interconnection between ONB and BDO ATMs, ONB cardholders can now transact at BDO ATMs nationwide without inter-network charges, and is likewise for BDO cardholders at ONB ATMs.