Notes. The complete table is published in its entirety at the CDS. A portion is shown here for guidance regarding its form and content. In the first part, we list the X-ray detected AGN; in the second part, we report basic data for the 11 sources in the parent sample undetected in the X-ray (see text).Column (1): unique source identification number in the 2XMMi catalogue; for the X-ray undetected sources, arbitrary ID number (as in Table 3). Column (2): monochromatic optical continuum flux at 2500 Å, recovered as described in Sects. 3 and 4 (in units of mJy). Column (3): X-ray-to-optical spectral index, α_ox ≡ log (F_{2 kev}/F_{2500 Å})/log (ν_{2 kev}/ν_{2500 Å}). Column (4): monochromatic optical continuum flux at 4400 Å, recovered as described in Sects. 3 and 4.2 (in units of mJy); “–”: source without Hβ line in their spectra. Column (5): monochromatic radio flux at 5 GHz (rest frame; in units of mJy), recovered from the integrated flux density at 1.5 GHz assuming a power-law spectrum F_ν ∝ ν^−α with index α = 0.5, as described in Sect. 4; undet.: source not detected by FIRST. Column (6): for sources not detected by FIRST, monochromatic radio flux limit at 5 GHz (rest frame; in units of mJy), calculated from the flux limit at 1.5 GHz of the FIRST survey, F_1.5 GHz = 1 mJy, assuming the same spectral shape (F_ν ∝ ν^−α with index α = 0.5). Column (7): radio-UV radioloudness parameter, defined as the ratio between the radio flux at 5 GHz and the optical flux at 2500 Å, both rest frame; undet.: source not detected by FIRST. Column (8): for sources not detected by FIRST, limit to the radio-UV radioloudness parameter, calculated from the limit to the radio flux at 5 GHz and the optical flux at 2500 Å, both rest frame. Column (9): radio classification: RL = radioloud; dRI = detected radiointermediate; ndRI = nondetected with 1 < ℛ^up.lim ≤ 10; RQ = radioquiet; NC = nonclassified. Column (10): radio-optical radioloudness parameter, defined as the ratio between the radio flux at 5 GHz and the optical flux at 4400 Å, both rest frame; undet.: source with Hβ line in its spectrum but not detected by FIRST; “–”: source (detected or not detected by FIRST) without Hβ line in its spectrum. Column (11): for sources not detected by FIRST, limit to the radio-optical radioloudness parameter, calculated from the limit to the radio flux at 5 GHz and the optical flux at 4400 Å, both rest frame; “–”: source without Hβ line in its spectrum. Column (12): radio-X-ray radioloudness parameter, defined as the ratio between the radio luminosity at 5 GHz and the X-ray luminosity in the 2−10 keV energy range; undet.: source not detected by FIRST. Column (13): limit to the radio-X-ray radioloudness parameter, calculated from the limit to the radio luminosity at 5 GHz and the X-ray luminosity in the 2−10 keV energy range. Note that for the X-ray detected AGN not detected by FIRST (first part), it is an upper limit, while for sources in the second part, radio-detected and X-ray undetected, it is a lower limit.