Service alerts

Last update: April 17, 2026, 2 p.m. ET

USPS service alerts have information for consumers, small businesses and business mailers about postal facility service disruptions caused by weather-related and other natural disasters, special events, or other changes impacting service.

Visit www.ready.gov or www.listo.gov to prepare for hurricanes and severe weather.

Severe weather conditions impacting delivery

Impacts from severe weather in the Midwest region of the U.S. (Oklahoma, Kansas, and Missouri) may impact the processing, transportation, and delivery of mail and packages.

Flooding conditions impacting delivery

Impacts from flooding in the Great Lakes region of the U.S. (Wisconsin, Illinois, and Michigan) may impact the processing, transportation, and delivery of mail and packages..

Diplomatic Post Office (DPO) suspensions

The following Diplomatic Post Office (DPO) ZIP Codes will be suspended from all mailing services until further notice:

  • 09291
  • 09292
  • 09294
  • 09295
  • 09301
  • 09310
  • 09312
  • 09809
  • 09825
  • 09830
  • 09844
  • 09847
  • 09870
  • 09873
  • 09874
  • 09880

Military Post Offices temporarily suspended

The following military ZIP Codes are suspended temporarily for all mailing services until further notice:

  • 09303
  • 09305
  • 09306
  • 09307
  • 09315
  • 09316
  • 09330
  • 09343
  • 09357
  • 09365
  • 09366
  • 09801
  • 09803
  • 09807
  • 09811
  • 09815
  • 09819
  • 09829
  • 09832
  • 09835
  • 09853
  • 09855
  • 09858
  • 09877
  • 09898
  • 09903
  • 09904

Service disruptions

Residential customers and small businesses can find out if mail is being delivered, or if their Post Offices are open. Business mailers get more detailed information about USPS mail processing facilities, and the operating status of delivery units, as well as any impacts on mail delivery overseas.

Residential customers

Business mailers

International

Contact us

Residential customers

Residential customers should check this Mail Service Disruptions website first for current, frequently-updated information about whether mail is being delivered to your neighborhood or if your local Post Office is open. Or you can call our customer service center at 1-800-ASK-USPS (800-275-8777).

Business mailers

Need more support? Have questions? Need to report a service disruption? Contact your local Business Service Network Representative or visit PostalPro for additional information.