ZIP code - Revision history

Aschlafly at 14:53, June 30, 2013

2013-06-30T14:53:10Z

Aschlafly: 50-year anniversary!

2013-06-30T14:49:09Z

50-year anniversary!

DavidE: corrected capitalization and rewrote one confusing part; also, they haven't been limited to 5 digits since 1981

2009-11-17T16:34:46Z

corrected capitalization and rewrote one confusing part; also, they haven't been limited to 5 digits since 1981

EvanW: Add code scheme

2009-11-16T23:29:47Z

Add code scheme

NathanG: re-wikify

2008-08-06T13:19:06Z

re-wikify

DavidE: started article

2007-10-23T19:34:42Z

started article

New page

A '''ZIP code''' is a five-[[digit]] [[number|numeric]] [[code]] used by the [[United States Postal Service]] in sorting [[mail]]. The first digit indicates a group of [[state]]s; the second and third, a region of a state or a large [[city]]; and the fourth and fifth, a small [[town]], a delivery area in a larger town or city, a particular postal facility, or a particular large mail recipient. Extensions of the ZIP code include the nine-digit ZIP+4 code and the 11-digit ABC (Advanced Bar Coding) code.
[[Category:United States Government]]

@@ Line 1: / Line 1: @@
 A '''ZIP code''' is a five-[[digit]] [[numeric]] [[code]] used by the [[United States Postal Service]] in sorting [[mail]]. The first digit indicates a group of [[state]]s; the second and third, a region of a state or a large [[city]]; and the fourth and fifth, a small [[town]], a delivery area in a larger town or city, a particular postal facility, or a particular large mail recipient.  Extensions of the ZIP code include the nine-digit ZIP+4 code and the 11-digit ABC (Advanced Bar Coding) code.
-Zip codes were introduced by the Postal Service in 1963, with a massive advertising campaign feature "Mr. Zip," which encouraged Americans to use the numbers.<ref>http://www.thesmartset.com/article/article06121301.aspx</ref>  "ZIP" is an acronym for "Zone Improvement Plan."
+ZIP codes were introduced by the Postal Service in 1963, with a massive advertising campaign feature "Mr. Zip," which encouraged Americans to use the numbers.<ref>http://www.thesmartset.com/article/article06121301.aspx</ref>  "ZIP" is an acronym for "Zone Improvement Plan."
 ZIP codes are encoded into barcodes, using a redundant binary code with tall lines to represent the bit "1" and short lines to represent the bit "0," and printed on mail.  A "1" (tall line) starts and ends the ZIP code, and immediately before the final "1" comes a [[checksum]] digit which, when added to all of the digits of the ZIP code, adds to a multiple of 10.  The code scheme is chosen so that each digit's binary equivalent has exactly two "1"'s.  Digits are encoded as follows:

@@ Line 1: / Line 1: @@
 A '''ZIP code''' is a five-[[digit]] [[numeric]] [[code]] used by the [[United States Postal Service]] in sorting [[mail]]. The first digit indicates a group of [[state]]s; the second and third, a region of a state or a large [[city]]; and the fourth and fifth, a small [[town]], a delivery area in a larger town or city, a particular postal facility, or a particular large mail recipient.  Extensions of the ZIP code include the nine-digit ZIP+4 code and the 11-digit ABC (Advanced Bar Coding) code.
 ZIP codes are encoded into barcodes, using a redundant binary code with tall lines to represent the bit "1" and short lines to represent the bit "0," and printed on mail.  A "1" (tall line) starts and ends the ZIP code, and immediately before the final "1" comes a [[checksum]] digit which, when added to all of the digits of the ZIP code, adds to a multiple of 10.  The code scheme is chosen so that each digit's binary equivalent has exactly two "1"'s.  Digits are encoded as follows:
@@ Line 36: / Line 38: @@
 |11000
 |}
 [[Category:United States Government]]

@@ Line 1: / Line 1: @@
 A '''ZIP code''' is a five-[[digit]] [[numeric]] [[code]] used by the [[United States Postal Service]] in sorting [[mail]]. The first digit indicates a group of [[state]]s; the second and third, a region of a state or a large [[city]]; and the fourth and fifth, a small [[town]], a delivery area in a larger town or city, a particular postal facility, or a particular large mail recipient.  Extensions of the ZIP code include the nine-digit ZIP+4 code and the 11-digit ABC (Advanced Bar Coding) code.
-Zip codes are encoded into barcodes using a redundant binary code and stamped on letters.  A "1" (tall line) starts and ends the zip code, and immediately before the final "1" comes a [[checksum]] digit which, when added to all five digits of the zip code, adds to a multiple of 10.  The code scheme is chosen so that each digit's binary equivalent has exactly two "1"'s.  Digits are encoded as follows:
+ZIP codes are encoded into barcodes, using a redundant binary code with tall lines to represent the bit "1" and short lines to represent the bit "0," and printed on mail.  A "1" (tall line) starts and ends the ZIP code, and immediately before the final "1" comes a [[checksum]] digit which, when added to all of the digits of the ZIP code, adds to a multiple of 10.  The code scheme is chosen so that each digit's binary equivalent has exactly two "1"'s.  Digits are encoded as follows:
 {| class="wikitable"

← Older revision		Revision as of 23:29, November 16, 2009
Line 1:		Line 1:
	A '''ZIP code''' is a five-[[digit]] [[numeric]] [[code]] used by the [[United States Postal Service]] in sorting [[mail]]. The first digit indicates a group of [[state]]s; the second and third, a region of a state or a large [[city]]; and the fourth and fifth, a small [[town]], a delivery area in a larger town or city, a particular postal facility, or a particular large mail recipient. Extensions of the ZIP code include the nine-digit ZIP+4 code and the 11-digit ABC (Advanced Bar Coding) code.		A '''ZIP code''' is a five-[[digit]] [[numeric]] [[code]] used by the [[United States Postal Service]] in sorting [[mail]]. The first digit indicates a group of [[state]]s; the second and third, a region of a state or a large [[city]]; and the fourth and fifth, a small [[town]], a delivery area in a larger town or city, a particular postal facility, or a particular large mail recipient. Extensions of the ZIP code include the nine-digit ZIP+4 code and the 11-digit ABC (Advanced Bar Coding) code.
		+
		+	Zip codes are encoded into barcodes using a redundant binary code and stamped on letters. A "1" (tall line) starts and ends the zip code, and immediately before the final "1" comes a [[checksum]] digit which, when added to all five digits of the zip code, adds to a multiple of 10. The code scheme is chosen so that each digit's binary equivalent has exactly two "1"'s. Digits are encoded as follows:
		+
		+	{\| class="wikitable"
		+	\|-
		+	\|+ '''Numeric values in ZIP code'''
		+	!Digit
		+	!Binary encoding
		+	!Digit
		+	!Binary encoding
		+	\|-
		+	\|1
		+	\|00011
		+	\|6
		+	\|01100
		+	\|-
		+	\|2
		+	\|00101
		+	\|7
		+	\|10001
		+	\|-
		+	\|3
		+	\|00110
		+	\|8
		+	\|10010
		+	\|-
		+	\|4
		+	\|01001
		+	\|9
		+	\|10100
		+	\|-
		+	\|5
		+	\|01010
		+	\|0
		+	\|11000
		+	\|}
		+
	[[Category:United States Government]]		[[Category:United States Government]]

← Older revision		Revision as of 13:19, August 6, 2008
Line 1:		Line 1:
−	A '''ZIP code''' is a five-[[digit]] [[~~number\|~~numeric]] [[code]] used by the [[United States Postal Service]] in sorting [[mail]]. The first digit indicates a group of [[state]]s; the second and third, a region of a state or a large [[city]]; and the fourth and fifth, a small [[town]], a delivery area in a larger town or city, a particular postal facility, or a particular large mail recipient. Extensions of the ZIP code include the nine-digit ZIP+4 code and the 11-digit ABC (Advanced Bar Coding) code.	+	A '''ZIP code''' is a five-[[digit]] [[numeric]] [[code]] used by the [[United States Postal Service]] in sorting [[mail]]. The first digit indicates a group of [[state]]s; the second and third, a region of a state or a large [[city]]; and the fourth and fifth, a small [[town]], a delivery area in a larger town or city, a particular postal facility, or a particular large mail recipient. Extensions of the ZIP code include the nine-digit ZIP+4 code and the 11-digit ABC (Advanced Bar Coding) code.
	[[Category:United States Government]]		[[Category:United States Government]]