H1B RFE response review to initial review with the below status your Alien Registration Number was changed relating to your I129, PETITION FOR A NONIMMIGRANT WORKER . I haven’t travelled outside US during the processing …Did anyone get approvals after you got this message ?
It means that your petition is currently being processed now by USCIS and they are working on adjudicating the case by verifying the RFE response. The information mentioned in the status section is self explanatory.
You may read this : [H1B Visa Statuses and their meaning ](http://redbus2us.com/how-to-check-h1b-visa-petition-filing-status-screenshots-approvalrfedenial/)