O Brien, Oregon Area Code

O Brien, OR is officially utilizing an area code overlay in which area codes 458 and 541 serve the same geographic area. Ten digit dialing (area code + seven digit number) is necessary.

In addition to O Brien, OR area code information read more about area codes 458 and 541 details and Oregon area codes.

O Brien, OR is located in Josephine County and observes the Pacific Time Zone. View our Times by Area Code tool.