Unfortunately we have no idea who may have called you.  This site is not meant to be a reverse directory but is a place for people to share their experiences about calls from numbers they don't recognize.  If this number continues to call and harass you then you may wish to file a report with your local police department.  You may also want to consider getting a call blocker if you don't have one already.  Keep in mind that a call blocker is not a one size fits all solution though it will help reduce the amount of junk calls.  While it is possible for anyone to do a reverse search the information presented may not be accurate.  Records may not have been updated, they can be outdated or someone is giving false information.  I know this is not the answer you are looking for but I hope it helps you.  You can share your experience here but do not include any sensitive personal information in your post.