Where is commonwealth one fcu main office? CommonWealth One FCU Main Office hours, phone, reviews, map for 4875 Eisenhower Avenue, Alexandria, VA. Credit Union Locator Calculators Rates Blog CommonWealth One Federal Credit UnionHow do i contact commonwealth one? Please log in to Online Branch using the login box above and click on the secure Contact Us link for messages that may include personal information such as your account number, date of birth, or social security number, inquiries about specific account information, or request changes to your account record. CommonWealth One is here for you.Why choose commoncommonwealth one? CommonWealth One Federal Credit Union was chartered in 1944 as Army Air Force Annex #1 Credit Union, with only 94 members and an all volunteer staff. Since those humble beginnings, they have grown to become a full-service financial institution.Where is commoncommonwealth central credit union located? CommonWealth Central Credit Union P.O. Box 641690 San Jose, CA 95164- 1690 Convenient Access Locally, Nationwide, and Worldwide!