Search Cisco Serial Number
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- We have recently purchased 8 Fiber SFP modules (Model # GLC-LH-SMD) from a Cisco partner, but 2 of them observed faulty. Vendor provide us the replacement but both replace SFPs were again observered faulty. I want to verify the serial numbers of SFPs from Cisco because I don't think so that Genuine box packed SFPs can be observed on first plug in.
- Cisco ASA 5505 Power-On Failure Serial Number Validation Tool: Please enter the serial number(s) of your Cisco ASA 5505(s) below to verify whether any unit is affected. To enter multiple units, separate each serial number by a comma or space, or you can simply copy and paste a list of serial numbers from Excel.
- This video is unavailable. Watch Queue Queue. Watch Queue Queue. Find Cisco Serial Number CiscoSkills. Unsubscribe from CiscoSkills?
- Yes, but only if you already have your equipment associated with your account. The 'Cisco Service Contract Center' will let you look up support status by serial number.
- Cisco support status lookup by serial number. Ask Question. Many vendors allow you to look at the support status of a device with no information besides a serial number. Does this exist for Cisco products? Cisco licensing warranty. Share improve this question. Edited Mar 9 '12 at 15:33.

Search Cisco Serial Number Lookup
Choose one of the following options to submit your device serial number or numbers: To check up to 20 Cisco devices, enter a comma-delimited or space-delimited list of serial numbers in the field provided, and click the Check button. To check more than 20 Cisco devices, complete these steps to. Cisco Coverage Checker.
Cisco devices have a standard serial number, from the serial number you can work out it's age and the location it was built.
To decipher the serial number, here's how it is composed.
Cisco S/N format is LLLYYWWXXXX.
LLL = Location code (i.e. FOC = FoxConn China)
YY = Year code (08 = 2004..09=2005..etc..)
WW = Week code (weeks 01 to 52)
XXXX = Base-34 Alpha Numeric Unique identifier (Includes 0 to 9 & entire alphabet except I & O).
Location codes:
CTH --- Celestica - Thailand
FOC --- Foxconn - Shenzhen, China
JAB --- Jabil - Florida
JPE --- Jabil - Malaysia
JSH --- Jabil - Shanghai , China
TAU --- Solectron - Texas
PEN --- Solectron - Malaysia
Year codes:
01 = 1997
02 = 1998
03 = 1999
04 = 2000
05 = 2001
06 = 2002
07 = 2003
08 = 2004
09 = 2005
10 = 2006
11 = 2007
12 = 2008
13 = 2009
14 = 2010
15 = 2011
16 = 2012
17 = 2013
18 = 2014
2 Steps total
Step 1: Get a Cisco serial number.
We'll use FOC0849N1BD.
The serial number can be obtained by looking at the rear of the device and it will be a white sticker with black printed letter, alternatively enter the command 'show version' onto the command line and look for the serial number in the output.

Step 2: Deciper!
FOC0849N1BD
Built in Foxconn, China in 2004 in week 49 of production and it's unique code is N1BD.
Knowing the actual age, not the purchase age, of you Cisco equipment can aid in forward planning for techical refreshing of you equipment. Download toad for oracle freeware 64 bit.
5 Comments
Cisco Prime Search Serial Number
- Thai PepperBloodHoundGang Oct 18, 2014 at 02:14pm
I think if you explained hot to pull the serial number from the device along with this it would have been more informative. But good information thanks for sharing.
- Macebrianwhelton Oct 18, 2014 at 05:13pm
Fair one, should have thought of that, I've added it!
- JalapenoMitch9775 Oct 24, 2014 at 05:50pm
Nice work! I didn't realize that's how the SNs were comprised. Cool :)
- Pimientodirtdigger Feb 19, 2019 at 10:38am
Hi, and this serial, it's a SFP. Same rule?
FNS18431JBW
what can you tell about this one - Macebrianwhelton Feb 19, 2019 at 09:32pm
No, this only checks Cisco switches and Routers, you could try https://cway.cisco.com/sncheck/ is you have a Cisco support contract.