Gemini on Question 17, Sep 25

Based on the original Ian Fleming novels, James Bond's passport number is never actually stated.

While Fleming was famous for the "Fleming Sweep"—grounding his spy fiction in meticulous, real-world details such as the specific brands of Bond's cigarettes (Morland of Grosvenor Street), his address (a flat off King's Road in Chelsea), and the exact specifications of his firearms—a specific passport number was omitted from the books.

Here is how Bond's passports are handled in the novels:

• •The Real Name: For the vast majority of his travels, Bond travels on a standard British passport under his real name, listing his profession as a representative of "Universal Export" (the cover company for the Secret Intelligence Service).
• •The Dossiers: Even in the novels where Bond's life is detailed in highly bureaucratic ways—such as the SMERSH assassination dossier on him in From Russia, with Love (which details his height, weight, and scars) or his official obituary penned by M in You Only Live Twice—a passport number is never listed.
• •Aliases: When Bond does travel under an alias in the novels (such as "Peter Franks" in Diamonds Are Forever or "Sir Hilary Bray" in On Her Majesty's Secret Service), Fleming mentions him reviewing the forged passports provided by Q-Branch, but again, no serial numbers are given in the text.

If you are thinking of a specific passport number, you may be thinking of the film franchise. For example, in the Daniel Craig films (starting with 2006's Casino Royale), close-ups of Bond's passport props reveal his official passport number, but this was an addition by the movie's prop department, not something drawn from Fleming's text.