This is my quick and dirty solution.. I am sure some of the experts on here can put together something much more elegant. I inserted another worksheet and basically created a list of your zip codes from the top section and the tech name next to each one. Then I named the entire range "techzip". This formula is in cell I17 and can be copied down the column.
=IF(ISNA(VLOOKUP(F17,techzip,2,FALSE)),"",(VLOOKUP(F17,techzip,2,FALSE)))
However, your zip codes in your customer lists and the zip codes in the tech zone tables do not match which confused me at first.
Hope this help!
Clayton Grove
Bookmarks