It is known to show intense gamma ray activity observed by Fermi Large Area Telescope on October 3, 2011.

[8][9][10] Between 16 January 2013 and 13 March 2020, four strong gamma ray flares were observed by Fermi LAT, during the Interferometric Monitoring of Gamma-ray Bright Active Galactic Nuclei (iMOGABA) program.

[14] According to radio band observations by Very Long Baseline Interferometry (VLBI), the jet of 4C +28.07 is described having a one-sided structure on parsec scales.

[15] When observed by Chandra X-ray observatory, the jet shows a sharp bend at a -90° position angle which subsequently terminates at a bright component within 3 mas.

[16] The supermassive black hole in 4C +28.07 is estimated to be 1.65+1.66-0.82 x 109 Mʘ based on an optical spectroscopy conducted on flat-spectrum radio quasars.