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Infrared-Faint Radio Sources (IFRSs) are a class of radio objects found inthe Australia Telescope Large Area Survey (ATLAS) which have no observablemid-infrared counterpart in the Spitzer Wide-area Infrared Extragalactic(SWIRE) survey. The extended Chandra Deep Field South now has even deeperSpitzer imaging (3.6 to 70 micron) from a number of Legacy surveys. We reportthe detections of two IFRS sources in IRAC images. The non-detection of twoother IFRSs allows us to constrain the source type. Detailed modeling of theSED of these objects shows that they are consistent with high redshift (z > 1)AGN.

Evidence for Infrared-Faint Radio Sources as z > 1 Radio-Loud AGN