I've been tasked to seek out a 16 digit number starting with a 4 that does not contain a state code on the same line to be entered into an application using the perl engine. I have come up with: 
(4[0-9]{3}(([ -]?)[0-9]{4}){3})((?!WI|MN).)*$

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However, the application automatically throws a /i at the end of the statement which causes this thing to error off. Is there another way to rewrite this? Thanks!

Code tags added by GrandFather

In reply to Finding a string not containing a string by Anonymous Monk

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