US Postal Service Customer Service Number

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To convey grievances with the representatives of USPS, US Postal Service, or United States Postal Services customer may refer to given customer service details to avail hassle free assistance.
  • US Postal Service Customer Service Number: 1-800-275-8777
  • TTY Access for Federal Relay Services -  TTY/ASCII: 1-800-877-8339 | Spanish: 1-800-845-6136 | Voice: 1-866-377-8642
  • Hours of Operation: Monday - Friday 8 AM - 8:30 PM ET | Saturday 8 AM - 6 PM ET
  • USPS Technical Support Customer Service Number: 1-800-344-7779 | Monday - Friday 8 AM - 8:30 PM ET | Saturday 8 AM - 6 PM ET
  • Customer Service Number for USPS Domestic & International Tracking: 1-800-222-1811 | Hours of Operation: Monday - Friday 8 AM - 8:30 PM ET | Saturday 8 AM - 6 PM ET
  • For Stamps & Postal Store Orders: 1-800-782-6724
  • Free Shipping Supplies: 1-800-610-8734

Additional US Postal Service Customer Service Numbers