Post Offices
Post Offices in & near Altamont, California. Operating hours, locations, phone/fax number, services information.
Livermore Annex Post Office
Livermore Annex Post Office in Livermore, California on Las Positas Ct. Operating hours, phone number, services information, and other locations.
Address: 2090 Las Positas Ct, Livermore, CA 94550
Phone: 925-455-7173
Fax: 925-443-2805
Toll-Free: 1-800-Ask-USPS® (275-8777)
TTY: 877-889-2457
Retail Hours
Lobby Hours
Monday 5:00pmTuesday 5:00pm
Wednesday 5:00pm
Thursday 5:00pm
Friday 5:00pm
Saturday 5:00pm
Sunday Closed