I had Silencer Shop do all the paperwork.Yeah, call the atf and have your serial number or permit control number ready.
If you call, it will likely be in a pending status, meaning unassigned to an examiner yet and they won't have a time frame for you. It basically lives in this state for 95% of the time.
If you filed a form 1, check the eforms website. If a dealer filed a form 4 it won't show up on your eforms log in.