Groups: Member
Posts: 1
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Is there a good source that can be checked regularly that will tell you of zip code changes. Specifically when new zip codes are created and when they become effective.
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Groups: Member
Posts: 2
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Every issue of the Postal Bulletin has a section, "Organization Information>Address Management>Post Office Changes". Here is a link to the section in the most recent one: http://www.usps.com/cpim/ftp/bulletin/2008/html/pb22248/info1_001.html#ep1331675
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