Per "Appendix K: Copyright Information for Sample Data" in the "User's 
Guide" for version 5.0 the US Zip Code Boundaries are copyrighted by 
Geographic Data Technology, Inc. 1997.   I am sure it is different for each 
version of MapInfo Professional.  Check your manual for copyright date. 
 Also; just because the data is copyrighted in a specific year, you can not 
assume that the data was collected and compiled during that year.

I can only expect that the data provider G.D.T. Inc. will provide the 
information you seek.

Patrick J. Phillips
GIS Tech Senior / Programmer I
City of Orlando, Fl


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