The USPS customer service number is 1-800-ASK-USPS (1-800-275-8777), answered Monday to Friday 8 a.m. to 8:30 p.m. ET and Saturday 8 a.m. to 6 p.m. ET. For package tracking questions, USPS has a separate line at 1-800-222-1811 with the same hours, and website or account problems go to technical support at 1-800-344-7779.
Below are every official USPS phone line, what each one handles, the online alternatives and what to have ready before you call. For a broader look at contacting USPS, see our complete guide to USPS customer service.
What Is the USPS Customer Service Number?
The main USPS Customer Care Center number is 1-800-275-8777, which spells 1-800-ASK-USPS. It’s toll-free and covers general questions about mail, packages, Post Office services and delivery problems. All hours are Eastern Time, and the lines are closed on Sundays.
| USPS line | Number | What it handles | Hours (ET) |
|---|---|---|---|
| Customer Care Center | 1-800-275-8777 (1-800-ASK-USPS) | General questions, delivery problems, Post Office services | Mon-Fri 8 a.m.-8:30 p.m.; Sat 8 a.m.-6 p.m. |
| Domestic and international tracking | 1-800-222-1811 | Package tracking questions | Mon-Fri 8 a.m.-8:30 p.m.; Sat 8 a.m.-6 p.m. |
| Technical support | 1-800-344-7779 | Click-N-Ship, claims, PO Boxes, The Postal Store, USPS.com accounts | Mon-Fri 8 a.m.-8:30 p.m.; Sat 8 a.m.-6 p.m. |
| Stamps and Postal Store orders | 1-844-737-7826 | Orders placed on The Postal Store | Mon-Fri 8 a.m.-4:30 p.m.; closed weekends and postal holidays |
| Free shipping supplies | 1-800-610-8734 | Ordering free supplies and problems with supply orders | Mon-Fri 7 a.m.-11 p.m.; Sat 7 a.m.-6 p.m. |
USPS doesn’t list a TTY number. Callers who are deaf, hard of hearing, deaf-blind or speech-impaired can dial 7-1-1 for a relay service, and USPS notes that relay operators aren’t USPS employees.
Which USPS Number Should You Call?
Choosing the right line saves a transfer. Match your problem to the number below.
- A package hasn’t moved or seems lost: call the tracking line, 1-800-222-1811. Our guide to USPS tracking not updating covers what to check first, and our page on USPS tracking support lists the online options.
- You can’t log in, a Click-N-Ship label failed or you’re filing a claim online: call technical support, 1-800-344-7779.
- A Postal Store order is wrong or late: call 1-844-737-7826.
- Free Priority Mail boxes didn’t arrive: call the supplies line, 1-800-610-8734.
- Anything else, including delivery complaints and Post Office questions: call 1-800-ASK-USPS.
If you’ve lost the tracking number itself, a call won’t recover it. Our guide to finding a USPS tracking number from a receipt shows where else to look.
How Can You Contact USPS Customer Service Online?
You don’t have to call. USPS offers several written channels, which leave a record and avoid hold times.
- Get Help Online (emailus.usps.com): a web form for questions and complaints. Its chat feature is for technical issues with USPS.com services.
- USPS FAQs (faq.usps.com): answers to common questions about tracking, delivery, claims and Post Office services.
- Informed Delivery support: a separate email form and FAQ page for Informed Delivery problems.
- Missing Mail search: available from 7 days after mailing for packages that haven’t arrived.
Our USPS delivery confirmation guide explains the proof-of-delivery records you can check yourself before contacting USPS.
What Should You Have Ready When You Call USPS?
The representative will ask for details about the item. Having them on hand shortens the call.
- The tracking or label number, copied from the receipt, label or shipping email.
- The mailing date and the service used, such as USPS Ground Advantage or Priority Mail.
- The sender and recipient addresses, including ZIP Codes and unit numbers.
- A description of the package and its contents.
- Your receipt and any insurance details, if you may need to file a claim.
Calls tend to go quicker when you can say exactly what you need, for example a redelivery, a status explanation or the next step for a missing package. If the item was sent by Priority Mail Express, mention its money-back guarantee if the delivery date has passed.
What Can’t USPS Customer Service Help With?
USPS can only help with mail and packages in its own network. A package shipped with another carrier needs that carrier’s line, such as the UPS customer service number or the FedEx customer service number. Our overview of customer support across carriers covers the rest.
USPS also can’t speak for another company’s account. If you bought postage through a shipping platform, questions about billing or the account go to that platform, while delivery questions go to USPS. With ParcelPath, USPS and UPS labels are free to create, with up to 89% off USPS and up to 85% off UPS, and you can compare both in the ParcelPath rate calculator. For an overview of each USPS service, see our USPS shipping overview or our roundup of shipping services and solutions.
Frequently Asked Questions
Is the USPS customer service number open on weekends?
Partly. 1-800-ASK-USPS (1-800-275-8777) is open Saturday from 8 a.m. to 6 p.m. Eastern Time, as are the tracking line (1-800-222-1811) and technical support (1-800-344-7779). All three are closed on Sundays. The Postal Store order line is closed on weekends and postal holidays.
Is 1-800-275-8777 the real USPS number?
Yes. USPS lists 1-800-275-8777 (1-800-ASK-USPS) as its Customer Care Center number on its Contact Us page. Be wary of other numbers found in unexpected texts, emails or search ads claiming a package is on hold, and check any number against the official usps.com Contact Us page before you call or share details.
What is the USPS phone number for tracking a package?
The dedicated USPS tracking line is 1-800-222-1811, covering both domestic and international packages. It’s open Monday to Friday 8 a.m. to 8:30 p.m. ET and Saturday 8 a.m. to 6 p.m. ET. Have the tracking number, mailing date and both addresses ready before you call.
Can I email USPS customer service instead of calling?
Yes. Use the Get Help Online form at emailus.usps.com to send a written question or complaint, with your tracking number and details. The form’s chat option is for technical issues with USPS.com services. For a package that hasn’t arrived after 7 days, submit a Missing Mail search instead.
Sources
- USPS: Contact Us (phone lines, hours and online help)
- USPS: Missing Mail
- USPS FAQ: USPS Tracking, The Basics
Part of our USPS Services guide. Related: Ground Advantage, USPS Priority Mail, Priority Mail Express.
