The U.S. Postal Service (USPS) has restored access to its online tracking system after an outage on Sunday left customers unable to check the status of deliveries on the agency's website.

Individuals looking for more specific tracking information should send the package's tracking number to 28777 in addition to one of the USPS' keywords.

USPS also asks customers to forward the smishing text message to 7726 to assist with reporting the scam phone number. The Postal Inspection Service will contact you if more information is needed.