United States Postal Service | United States Postal Service
475 L Enfant Plaza SW, Washington, DC 20260-0004
Eligibility
No restrictions
Hours
Mon-Fri 8am-8:30pm, Sat 8am-6pm Eastern Time customer service by phone
24-hours website
800-275-8777
Voice·
Toll-Free: 800-ASK-USPS
Websitehttps://www.usps.com
Application process
Call, visit local post office, or visit website
Fees
Vary
Service area
AZ
Provides mail delivery service locally, nationally, and internationally. Information on locations, hours, services, and answers to frequently asked questions are available by phone and online. Also investigates postal fraud and mail theft. Offers free notification service of mail which is scheduled to arrive soon through the Informed Delivery Daily program. Those who sign up receive emails that allow them to digitally preview letters and packages.
Last Assured
10/01/2025
Providing organization
United States Postal Service
Provides mail delivery service locally, nationally, and internationally. Information on locations, hours, services, and answers to frequently asked questions are available by phone and online. Also investigates postal fraud and mail theft. Offers free notification service of mail which is scheduled to arrive soon through the Informed Delivery Daily program. Those who sign up receive emails that allow them to digitally preview letters and packages.