Thursday, 26 June 2014

Cisco Serial Number date encoding

Just heard from a colleague that Cisco have a date of manufacture encoded in the Router/Switch serial number...... details below....

The serial number will be in the format: ‘LLLYYWWSSSS’; where ‘YY’ is the year of manufacture and ‘WW’ is the week of manufacture.  The date code can be found in the 4 middle digits of the serial number.  In the case of serial number SAD08300D4W, ‘08’ is the year code and ‘30’ is the week code. You can then decode the date use the following:

Here are the Manufacturing Year Codes:
    01 = 1997                           06 = 2002                           11 = 2007                            16 = 2012
    02 = 1998                           07 = 2003                           12 = 2008                            17 = 2013
    03 = 1999                           08 = 2004                           13 = 2009                            18 = 2014
    04 = 2000                           09 = 2005                           14 = 2010                            19 = 2015
    05 = 2001                           10 = 2006                           15 = 2011                            20 = 2016

And here are the Manufacturing Week Codes:
    1-5 : January                 15-18 : April                      28-31 : July                       41-44 : October
    6-9 : February               19-22 : May                      32-35 : August                   45-48 : November
10-14 : March                   23-27 : June                      36-40 : September             49-52 : December



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