Passport book number definition

The passport book number is a unique set of numerals and letters that distinguishes one passport book from another. If you own a passport, it does have an identification passport number. Sometimes, the passport identifier is only numerals, and other times, it is a combination of numerals and letters.

It is usually eight or nine digits long and it is designed to make sure that the person using it is actually the person identified in the passport. Each one of the digits on this document provides information both, about you and about the passport book itself, for instance, the first two numbers indicate which passport office issued the document.

Where is the passport book number?

To locate your passport book number, check the upper right-hand corner on the second page of your passport book. Below the United States of America title, you will find a black number labeled “Passport No./No. du Passeport/No. de Pasaporte."" That is your passport book number.

If you lose your passport and want to replace it, you will need to provide your passport number. This is one of the reasons why it is a good idea to memorize it or to keep a record of it. Your lost passport book will have to be deactivated or returned in order for you to get a new one, and therefore the old number is necessary. If you do not know your passport number, you can make a request that will be answered free of charge.

This request must be notarized and sent to: Department of State Passport Services, Research and Liaison Section Room 500, 1111 19th Street N.W. Washington D.C., 20524-1705.

You must include the following information when sending your request for a new passport book:

  • Full name at birth as well as any other names (such as your married name)
  • Date and place of birth
  • Mailing address
  • Phone number
  • Email address
  • Reason for the request
  • Estimated dates of the lost passport
  • Photocopy of a valid ID
  • Additional information that may help locate the record