Called, but left no message. Based on numerous other calls I have received from 313-338-XXXX, this one is also from Quicken Loans. I have received about a dozen so far this week. Sometimes they use the 313-338-XXXX, and sometimes the Caller ID says "Unknown." They also use 313-373-XXXX numbers and leave a callback number of 866-349-8543. When they leave a message, it is to inform me that they have some great loan information regarding my recent loan submittal. Since I haven't applied for a mortgage in over 20 years, this is definitely telemarketing spam.