1. PostalAnnex 603 E University Dr Ste B, Carson, CA 90746 Coordinate: 33.85851,-118.26566 Phone: (310) 538-8285
2. United States Postal Service 21350 Avalon Blvd, Carson, CA 90745 Coordinate: 33.83501,-118.26287 Phone: (800) 275-8777