The Dell service tag is a seven character identifier that is unique to your product. In addition to the service tag, there is an Express Service Code which is a 10-digit numeric version of the service tag which can be typed into a telephone for call routing. While most Dell products have a service tag, some accessories and peripherals do not. As a general rule, desktop and notebook computers, servers and storage devices, printers, and mobile devices (such as phones or tablets) will have a service tag.
Notebook computer systems include these model names: Latitude, Inspiron, XPS, Precision, Vostro, and Alienware.
The service tag label will be found on the bottom of the notebook computer.