# USPS Customer Service Number: 1-800-275-8777, Hours, and Who to Call > Call USPS customer care at 1-800-275-8777 Monday through Friday from 8 AM to 8:30 PM ET or Saturday from 8 AM to 6 PM ET to talk with a representative. - **Author**: Charles Helms - **Published**: 2026-10-29 - **Category**: usps - **URL**: https://trackingadvice.com/usps-customer-service/ --- The primary USPS customer service phone number is 1-800-ASK-USPS (1-800-275-8777), available Monday through Friday from 8 AM to 8:30 PM ET and Saturday from 8 AM to 6 PM ET. USPS runs separate lines for tracking, website problems, and stamp orders, and theft goes to a different agency, so pick the channel from the table below before you call. If a parcel is still moving, you can redirect it online with Package Intercept before you call. Live tracking for any USPS number is on our [USPS tracking page](https://trackingadvice.com/carriers/usps/). ## USPS customer service numbers and hours **For most problems, call 1-800-ASK-USPS; use the tracking or technical line only when your question is about a tracking number or a USPS.com tool.** | Line | Number | Hours (ET) | Use it for | | :------------------------------------- | :------------------------------------------------------------------------------------- | :-------------------------------------------------------- | :----------------------------------------------------------------------------------------------- | | Customer Care Center | 1-800-ASK-USPS (1-800-275-8777) | Mon-Fri 8 AM-8:30 PM; Sat 8 AM-6 PM | Service and delivery questions; the agent can refer your issue to your local Post Office manager | | Domestic & International USPS Tracking | 1-800-222-1811 | Mon-Fri 8 AM-8:30 PM | Questions about a domestic or international tracking number | | Technical Support | 1-800-344-7779 | Mon-Fri 8 AM-8:30 PM; Sat 8 AM-6 PM | When Click-N-Ship, File a Claim, PO Boxes, The Postal Store, or a USPS account does not work | | Stamps & Postal Store orders | 1-844-737-7826 | Mon-Fri 8 AM-4:30 PM; closed weekends and postal holidays | Stamps and orders placed on The Postal Store | | Free shipping supplies orders | 1-800-610-8734 | Mon-Fri 7 AM-11 PM; Sat 7 AM-6 PM | Ordering free boxes, envelopes, and postal forms, or a problem with that order | | Informed Delivery help | [Informed Delivery inquiry form](https://emailus.usps.com/s/informed-delivery-inquiry) | Email form only | Questions about the Informed Delivery service | | Telecommunications Relay Service (TRS) | 7-1-1 | Through your state relay service | Assistance for deaf, hard of hearing, deaf-blind, or speech-impaired callers | _Verified on the carrier's website._ If you are deaf, hard of hearing, deaf-blind, or speech impaired, dial 7-1-1 to access your state telecommunications relay service (TRS); the TRS contact is not a USPS representative. For general online inquiries, you can use the [USPS online contact form](https://emailus.usps.com/s/). (Yes, the Postal Store line closes at 4:30 PM ET on weekdays, hours before the other lines.) ## Which USPS channel fits your problem **Pick the channel before you call, because USPS phone agents see the same tracking scans you see online.** | Problem | Go here first | Why | | :----------------------------------------- | :------------------------------------------------------------------ | :------------------------------------------------------------------------------------------------------------------------------------- | | Tracking not updating | USPS Tracking online | Calling adds no new data (see our guide to [USPS tracking not updating](https://trackingadvice.com/usps-tracking-not-updating/)). | | Package not delivered after 7+ days | [Missing Mail search](https://missingmail.usps.com) | USPS starts a search and sends you a confirmation email and periodic updates. | | Delivered to the wrong address | Local Post Office, then 1-800-ASK-USPS | Start local: the postmaster can investigate a local delivery problem. | | Damaged or missing contents with insurance | [File a claim](https://www.usps.com/help/claims.htm) | A claim needs proof of insurance, proof of value, and proof of damage (learn how to [file a shipping claim](https://trackingadvice.com/file-a-shipping-claim/)). | | Stolen package or mail theft | [U.S. Postal Inspection Service](https://www.uspis.gov/report/) | USPS tells you to report mail theft and mail fraud to the Postal Inspection Service. | | Website or Click-N-Ship problem | Technical Support (1-800-344-7779) | This team handles website applications and forms that do not work. | | Rude or dishonest employee | [USPS Office of Inspector General](https://www.uspsoig.gov/hotline) | The OIG investigates suspected misconduct by postal employees. | | Local delivery problem | Local Post Office, then 1-800-ASK-USPS | Same rule: start with the local postmaster. | Same screen, same scans. ## How to talk to a real person at USPS **Call 1-800-ASK-USPS during its hours, state the problem in a few words, and ask the agent to refer your issue to your local Post Office manager.** 1. Have your tracking number (USPS numbers are 13 to 34 characters), the delivery address, and the mailing receipt ready. 2. Dial 1-800-ASK-USPS (1-800-275-8777) during support hours, or call 1-800-222-1811 if you have a domestic or international tracking issue. 3. Describe the problem in a few words. 4. Ask the agent to refer your issue to your local Post Office manager. 5. Write down any case or reference number the agent gives you. To skip the phone, use the [USPS online contact form](https://emailus.usps.com/s/). For technical issues with USPS.com services, the form also offers a chat. ## If USPS customer service does not fix it **If the call does not fix it, go to your local postmaster first, then the district Consumer and Industry Affairs office, and use the Postal Regulatory Commission only as the last step.** 1. Local postmaster: Ask for the postmaster or station manager at your Post Office. Local postmasters are in the best position to investigate local problems. 2. District Consumer and Industry Affairs: If the local office does not fix it, contact your district office through the [USPS Consumer and Industry Affairs directory](https://postalpro.usps.com/ppro-tools/consumer-affairs). Its staff help solve local service issues. 3. Postal Regulatory Commission: Send a mail service inquiry through the [PRC contact page](https://www.prc.gov/contact). The Postal Regulatory Commission is not a faster help desk. It may forward your inquiry to USPS, which responds to you directly within 45 days ([PRC consumer assistance](https://www.prc.gov/consumer-assistance)). ## Missing mail and claims deadlines **Start a Missing Mail search 7 days after mailing, and file an insured claim no later than 60 days after the mailing date.** | Action | Earliest | Latest | | :----------------------------------------- | :------------------------- | :-------------------------- | | Missing Mail search request | 7 days after mailing date | 365 days after mailing date | | Damaged item or missing contents (insured) | Immediately upon discovery | 60 days after mailing date | | Lost Priority Mail Express | 7 days after mailing date | 60 days after mailing date | | Lost Priority Mail | 15 days after mailing date | 60 days after mailing date | | Lost USPS Ground Advantage | 15 days after mailing date | 60 days after mailing date | | Lost Insured Mail or Registered Mail | 15 days after mailing date | 60 days after mailing date | _Verified on the carrier's website._ Once 7 days have passed since mailing, open a search on the [USPS Missing Mail portal](https://missingmail.usps.com). USPS sends a confirmation email and then periodic updates on the search. Our [USPS lost package guide](https://trackingadvice.com/usps-lost-package/) covers the form, the search statuses, and what USPS will not search for. For lost or damaged items, file a domestic indemnity claim online through [USPS Claims](https://www.usps.com/help/claims.htm). Either the sender or the recipient may file the claim. The person filing needs to provide the original mailing receipt and proof of value, such as a sales receipt, a paid invoice or bill of sale, or a credit card billing statement. USPS offices close on federal holidays. ## FAQ ### Is USPS customer service open 24/7? No. The main line answers six days a week, with the hours in the table above. Outside those hours, check USPS Tracking online. ### What is the USPS customer service number? The primary general support number is 1-800-ASK-USPS (1-800-275-8777). For domestic and international tracking questions, you can call 1-800-222-1811, and Technical Support answers at 1-800-344-7779. ### Can I email USPS customer service? Yes, through the [USPS online contact form](https://emailus.usps.com/s/) rather than a public email address. For technical issues with USPS.com services, the form also offers a chat. ### Is USPS customer service open on Sunday? No. The USPS Contact Us page lists no Sunday hours for its phone lines, so the main line answers Monday through Saturday only. ### Who do I call about mail theft? Contact the [U.S. Postal Inspection Service](https://www.uspis.gov/report/) at 1-877-876-2455 to report mail theft, stolen packages, identity theft, or mail fraud. ### Why can't USPS customer service see more tracking detail? USPS says the tracking information its representatives see is the same information you see on USPS Tracking. Call about a package only when you need help with something other than its status.