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Here is how to find out the status of the money order that was purchased from the United States Postal Service.
Search for Money Order Status
6401 Inquiry
Lost/Stolen
Enter a valid 10 or 11 digit Serial Number
Individual Serial Number
Block of Serial Numbers
Enter the first 10 or 11 digit serial number.
To search a range of money orders,
enter the 10 or 11 digit serial number
of the ending money order.
A valid range is within a 100 serial numbers.