In the supplements from the FAA, does it list what the frequencies are for the specific ARTCC's? I know its on RR.com but I was just curious. I can't find them at all!
In the Airport/Facility Directory or A/FD there is a section for Air Route Traffic Control Centers/Flight Service Station Communications Frequencies. If your looking for an online resource check out http://www.milaircomms.com/artcc_frequencies.html .
Edit - To answer your question though, yeah they are listed in the supplements but it's a DoD product rather than being from the FAA - You can get a free copy here - http://164.214.2.62/products/usfif/enroute.cfm
Thanks guys. I found the ARTCC's in the IFR Supplement in alphabetical order mixed with the airports. I figured that they would group all the ARTCC's together but I guess not. Thanks for your helo!