home *** CD-ROM | disk | FTP | other *** search
- Path: sparky!uunet!cis.ohio-state.edu!zaphod.mps.ohio-state.edu!news.acns.nwu.edu!telecom-request
- Date: Thu, 31 Dec 92 18:39:08 GMT
- From: ssay@prefect.cc.bellcore.com (say,halim s)
- Newsgroups: comp.dcom.telecom
- Subject: Format of ZIP Code Bars on Envelopes
- Message-ID: <telecom12.928.7@eecs.nwu.edu>
- Organization: Bellcore, Livingston, NJ
- Sender: Telecom@eecs.nwu.edu
- Approved: Telecom@eecs.nwu.edu
- X-Submissions-To: telecom@eecs.nwu.edu
- X-Administrivia-To: telecom-request@eecs.nwu.edu
- X-Telecom-Digest: Volume 12, Issue 928, Message 7 of 13
- Lines: 27
-
- Hi there,
-
- I would like to find out the encoding for the ZIP code bars on USPS
- mail envelopes.
-
- I could figure out this much:
-
- Ones are long bars, zeros are short bars. Start and end with a one.
- Each digit has five characters. I could figure out what zero through
- nine correspond to.
-
- The only remaining part is the check digit at the end. Only one check
- digit is used both for five digit regular ZIP code and nine digit
- extended code.
-
- Now my question is: What is the encoding/decoding rule for this single
- check digit?
-
- Does anyone know or could you tell me a reference for this "standard"?
- I am sure some address generator software would have this algorithm.
-
- Thanks and my best wishes for a Happy New Year!
-
-
- SABiT ssay@cc.bellcore.com
-
-