
The passport number is on the physical document, but once it is stored in a drawer or lost, finding this string of characters becomes a real problem. Flight bookings, visa applications, loss declarations: several processes require this number without necessarily having the passport on hand. The options for retrieving it depend on the situation, the timing of the request, and the digital traces left during the procedure.
The ANTS pre-application number, a often overlooked option
The majority of French passports issued in recent years have undergone an online pre-application process on the ANTS website. This step generates a 10-character pre-application number that remains associated with the file in the ANTS interface.
This number does not correspond to the passport number itself. However, it allows you to retrieve the complete file: submission date, municipality entered, progress status. With this information, it becomes possible to contact the municipality or the production center to obtain the exact number of the issued document.
Access is made from the personal ANTS space, under pre-applications and appointments. Many users forget that they have this account, created during the first online procedure. If you are looking to easily find your passport number, this is probably the most direct starting point before any other steps.

Passport number: where to find it on the physical document
When the passport is accessible, locating the number is not difficult, but its exact position deserves clarification to avoid confusion with other references.
The French passport number is located at the top right of the laminated identity page. This is the page that contains the photo, last name, first name, and date of birth. This number is composed of digits and letters.
It is also reproduced at the bottom of this same page, in the automatic reading zone (the machine-readable zone, often referred to as MRZ). On French biometric passports, this number also appears on the inner pages, in laser perforation visible in transparency.
Frequent confusion with other references
Several numbers coexist in a passport file:
- The pre-application number, assigned during the online process on ANTS, which identifies the file but not the document.
- The application number, provided by the municipal agent on the deposit receipt, which allows tracking the production.
- The actual passport number, printed on the document once produced, which is used for flight bookings, visas, and border checks.
Confusing these references amounts to searching for the wrong information in the wrong place. The deposit receipt at the municipality, often kept by reflex, bears the application number, not the passport number.
Finding the number without having the passport on hand
The most common situation is when the passport is not immediately accessible: stored in a safe, entrusted to a third party, or simply lost. Several avenues allow you to trace back to the number.
Copies and photos of the passport
The first check focuses on digital copies. Many travelers photograph the identity page of their passport before a trip, sometimes at the request of a hotel or airline. These photos can be found in the phone’s gallery, in a cloud storage service, or in the attachments of an old email.
Searching for “passport” in your email inbox often yields results, especially if a copy was sent to a relative or a travel provider.
Old booking forms
International flight confirmations include the passport number provided during the booking. Airlines, booking sites, and travel agencies retain this data. A confirmation email from the last trip abroad often contains the number, sometimes partially obscured, sometimes clear.
Visa application files are another reliable source. Consulates and online visa platforms (VFS Global, TLScontact) archive the information submitted, accessible via the applicant’s personal space.
Contacting the municipality of deposit
The municipality where the passport was submitted and collected keeps a record of the file. By presenting an identification document, it is possible to request the references of the issued document. Response times vary by municipality, and some municipalities only accept this request in person, not by phone.

Loss of passport and loss of number: two distinct situations
Forgetting the number of your passport while the document still exists is an information retrieval problem. Losing the passport itself triggers a different administrative procedure, with implications for the number.
A loss declaration to the authorities (police station, gendarmerie, or consulate abroad) invalidates the concerned passport. The number associated with the lost passport becomes unusable for any future procedures, including crossing borders. Renewal generates a new document with a new number.
If only the number is missing (the passport is somewhere, but not immediately found), no declaration is necessary. The process consists solely of retrieving the information through one of the avenues described above.
Abroad, the consulate as a recourse
A traveler who has lost their passport outside of France should turn to the consulate or embassy. These services can issue a travel document or an emergency passport. The number of the old passport is not required for this process: consular authorities access the national passport database using the applicant’s identity.
Keeping a copy of the identity page of the passport in a secure online storage space remains the simplest precaution. It avoids relying on a third party, a municipality, or an old email to retrieve information that fits on one line.