How many digits are in a passport number?


Most U.S. passport numbers are nine digits long. They can be as short as six digits and many contain alphanumeric characters rather than just being a series of numbers.

The passport number is generally located in the upper right-hand corner of the inside front cover of the passport. The number appears in black ink, printed below a label that says "Passport No./No. Du Passeport." The U.S. Department of State has a database linking each passport number with the individual for whom the passport was issued. A traveler should write down and store the passport number in a safe location that stays separate from the passport itself; if the passport is lost or stolen while the traveler is abroad, the traveler should contact the U.S. Department of State or the U.S. Embassy.

Q&A Related to "How many digits are in a passport number?"
It depends upon the country.
The serial number on passports has been changed from ten to nine digits.
A number is not digits. You could ask how many digits are needed to represent a certain number in base ten, but the question "How many digits is this number?" does not make
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