My H1B case status is changed to
Notice Explaining USCIS’ Actions Was Mailed
On July XX, 2016, we began reviewing your Form I-129, Petition for a Nonimmigrant Worker, Receipt Number WACXXXXXXXXXX. We mailed you a notice informing you of the action we intend to take on your case. Please follow the instructions in the notice and submit any requested materials. If you do not receive your notice by August XX , 2016, please call Customer Service at 1-800-375-5283. If you move, go to www.uscis.gov/addresschange to give us your new mailing address.
Could this be RFE ? Please help me out understanding the meaning.
Please note ,‘Case Was Received’ was earlier case status .