The Angels recalled Wantz from Triple-A Salt Lake on Wednesday, J.P. Hoornstra of the Los Angeles Daily News reports.
The righty has appeared in four games for the Angels this season, posting a 5.06 ERA in 5.1 innings while striking out nine and walking three. Wantz hasn't pitched for Triple-A Salt Lake since Thursday, so he should be fresh and ready for low-leverage relief work in the big leagues.