The serial number can be located on the bottom panel of the unit and in the GUI (Graphical User Interface) of the SB6183.  This document includes the following sections:
The serial number is located on the bottom white sticker of the device as S/N.Â
NOTE: If the SB6183 is connected to a router, it is recommended to disconnect the router and connect the SB6183 directly to a computer with an Ethernet cable.
- Launch a web browser, such as Internet Explorer, Firefox, or Safari. Enter http://192.168.100.1 into the address box, and press the Enter key. Â The Status page will appear.
 - Click the Addresses link on the left-hand menu. The Addresses page appears. The serial number will be displayed (as shown below).