At his home in the
Barracks, Benjamin Linus had a number of passports from various countries under different aliases. Amongst the passports were ones for Brazil, Japan, New Zealand, Sweden, and Switzerland. Sayid discovered the passports in a drawer in a hidden closet. (" Ben used a Swiss passport to check into a hotel in Tunisia. ") The Economist ("
") The Shape of Things to Come
Ben's Swiss passport
The name on the passport was "Dean Moriarty"
The passport number was 012153
The birth date was listed as March 03, 1962
Place of birth was listed as Zurich
The date of issue was listed as April 02, 2003
The expiration date was listed as April 01, 2013
There were a few errors on the passport:
It was not the design of a real Swiss passport
Swiss passports are printed in 5 languages (de,fe,it,rm,en)
There was a typo on the date of issue, it should say 02 AVR/APR 03 and not AVR/PR
The international code for Switzerland is CHE and not SWI
Instead of "Place of birth" it should read "Place of origin"
Ben's Canadian passport
Ben used a Canadian passport to check into the hotel in Tunisia.
This passport also used the name "Dean Moriarty".
Ben's Brazilian passport
Ben's Brazilian passport had two spelling errors: first, the country name should read BRASIL instead of BRAZIL, and PASSPORT should read PASSAPORTE.
Dean Moriarty was a character in Jack Kerouac's novel On the Road.
Dean Moriarty is the name of Alex Russo's boyfriend in Disney's Wizards of Waverly Place 
Professor Moriarty was the evil genius villain of Sir Arthur Conan Doyle's series of Sherlock Holmes novels.
Arvin Sloane, the main antagonist in J.J. Abrams's Alias, based most of his work out of Zurich.
Ben's passport ID number is HNSO12153. The same passport ID number is found on Michael's passport.
For fan theories about these unanswered questions, see:
Why does Ben need so many different passports?
What has Ben used these passports for in the past?
Why does the passport say Dean Moriarty, not Benjamin Linus?
Which passports are real?
Where did he get them?