All Countries States Cities and Zipcodes in a Application

Question

Is there a way getting all countries, states,cities zipcodes/ in one single database.

I have been looking all over.

I discovered geonames.org, which has I guess

Answer 1

For those using the FIPS 10-4/FIPS 5-2 standard, I have been maintaining the NGA GEC (formerly FIPS 10-4/5-2) Excel spreadsheet (original format) for 1st level administrative divisions of countries. The spreadsheet is currently updated to Update 15 (March 2014): http://www.opengeocode.org/archive.php