N4JRI's Radio Pages: Air Traffic Control
ARTCC Radio Frequencies
Fields listed are Sector #, Sector Name, VHF freq, UHF freq, and description. Within this field, I will list VORs which are contained in the sector. In the meantime, you can learn much just by plotting the frequencies on a sectional chart over the VORs for which the sectors are named.
Washington Center (KZDC)