EAN-130000000006873   EAN-13 barcode 0000000006873
UPC-A000000006873   UPC-A barcode 000000006873
UPC-E00068703   UPC-E barcode 00068703
Product Name0000000006873
Amazon.com12-28-2018 12:19:57am
UPCChecker.com12-28-2018 12:19:58am
Upcdatabase.org12-28-2018 12:19:58am
Created09-17-2018 7:23:39am
Modified12-28-2018 12:19:57am
MD5d7e355546ff1a1468b1fa7323ef8b325
SHA2562a94394295412ccf9399b43de958b79d1f2ae478c0dc8f28beda00a0b0b452e5
Search Googleby EAN or by Title
Query Time0.0007648

Code 128 is a high-density 1D barcode symbology. This barcode set makes use of the entire 128 ASCII characters which include letter, number and symbols.

Code 128 Barcode

As with all barcodes, there are indicators to identify where the barcode starts and stops. These are marked in yellow below. Code 128 also has a check character which has been marked in green. The remainder of the barcode is the data being encoded. The text below the barcode is optional and is for human consumption in the event the barcode can't be scanned or if people also need to know what the code means.

Code 128 Barcode

Each character in the barcode symbol is composed of three bars and three spaces. Each bar or space must range from 1-4 units and the sum of all the width of all bars must work out to an even number. The stop marker is special because it adds an extra bar of 2 units at the very end (4 bars and 3 spaces). There are three different start markers to to identify which code set is being used. To represent all 128 characters, the code sets can be within a single barcode as needed by using control characters 98-101 (depending on the code set).

The check character is calculated by summing the value of each character and multiplying it by its position. The start character is also part of the sum but is added without weight (multiply by 1 just like the first encoded data character) then when you have the sum take the modulo 103 remainder. This gets a little more complex when mixing modes within a single barcode.

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