FourOneOne is a small application that allows you to look up airport codes, area codes, country codes and ZIP codes. It was inspired by the (now discontinued) Code Finder application by Andrew Zamler-Carhart. The data comes from freely available files published by the OpenBSD and NetBSD projects. What's New
Version 1.0.1:
- Now uses an internal copy of the data by default (this can be changed in Preferences). This should fix problems that some users had when running with older data files. Requirements
PPC / Intel, Mac OS X 10.4 or later
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