No matter where you file your I-765, Application for Employment Authorization (also known as the Work Permit or EAD), all cards are created and mailed from the USCIS card production facility in Kentucky. In 2011, USCIS initiated the secure mail initiative in partnership with the United States Post Office (USPS). This partnership enables USCIS to confirm delivery of EAD cards. It also provides tracking information for all cards mailed from the card production facility. Once you receive your Notice of Approval you can contact USCIS's National Customer Service Center at 1-800-375-5283 and obtain your tracking number and current delivery status.
You should wait two weeks before calling as delivery can take that long. Once customers have that tracking number they can track their card on the USPS website. It should be noted that any inquires regarding lost cards will be processed using the information on the USPS website.