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We analyze all the available Atacama Large Millimeter / submillimeter Arrayarchival data of the nearby Type-II Seyfert galaxy NGC 1068, including new 100GHz data with the angular resolution of 0\farcs05, which was not included inprevious continuum spectral analysis. By combining with the literature databased on the Very Large Array, we investigate the broadband radio continuumspectrum of the central $\lesssim7$ pc region of NGC 1068. We found that theflux density is between $\approx$10-20 mJy at 5-700 GHz. Due to the inabilityof the model in previous studies to account for the newly added 100 GHz datapoint, we proceeded to update the models and make the necessary adjustments tothe parameters. One possible interpretation of this broadband radio spectrum isa combination of emission from the jet base, the dusty torus, and the compactX-raying corona with the magnetic field strength of $\approx20$ G on scales of$\approx30$ Schwarzschild radii from the central black hole. In order to firmlyidentify the compact corona by omitting any other possible extended components(e.g., free-free emission from ionized gas around), high-resolution/sensitivityobservations achieved by next-generation interferometers will be necessary.

The Centimeter to Submillimeter Broad Band Radio Spectrum of the Central Compact Component in A Nearby Type-II Seyfert Galaxy NGC 1068