Amateur Radio
682 sites
http://csgnetwork.com/hamfreqtable.html
CSGNetwork's Amateur Radio Frequency Table is a comprehensive reference listing all US ham radio band allocations, including mode restrictions, calling frequencies, and licensing class privileges across bands from 160 meters to microwave. Part of a larger calculator and reference site, it also links out to related frequency tables for CB, FRS, marine VHF, cellular, and cordless phone bands.
https://www.qsl.net/fcarc
Hosted on QSL.net, this appears to be the web presence for FCARC, likely a local amateur radio club or organization. The site is indexed on the QSL.net network, a well-known hosting platform dedicated to ham radio groups and operators worldwide.