1963.
1963: ZIP Codes are introduced. ZIP Codes are five-digit numbers that enable mail to be sorted faster. Use of the code was not mandatory on any mail at first.
http://www.zip-codes.com/united_states_zip_codes_timeline.asp
Before that we had "zones," two-digit numbers that pertained to a given area:
1943: The United States Post Office Department divides cities into zones. This was a precursor to the Zoning Improvement Plan Codes, or ZIP Codes.
In some if not all areas, the zones wound up as the last two digits of the new ZIP codes.
1820
In our company we have been using the Usps zip code lookup tool for a long time now. Up to now, we never had any problems nor incorrect data from the product.
A zip code is a five digit mumber used by the US Postal Service (USPS) that identifies every Post Office in the US. It is followed by a four digit number that Identifies the individual residence serviced by that Post Office. It has allowed the USPS to employ automated services for improved and more accurate delivery of mail.
generally the four digit pin code is the last for digits of your phone number. like say my number was 203-555-4545. the pin would be 4545
Visit any of the websites listed below (Sources and Related Links section) and type in the required information. Once that is done, it will show a nine digit zip code.
About three to five business days using first class mail.
You can track a package with DHL using their website, using the 10-digit tracking code or codes for your package. It is possible to track a package without this 10-digit tracking code, under certain conditions; for more information, contact DHL directly.
if its not alphanumeric, 999999 variations
7489
134. But I am trying to register using this code on the NY DMV site, and it does not accept 134 as correct
i would like a list all possible 4 digit combination using 0-9
How do I read my six digit code for facebook