Looking for technical information or how to get a subnet allocation? Be sure to visit our WIKI, and interact with us on the Portal. You may join our discussion mailing list 44net.


Since its allocation to Amateur Radio in 1981, Internet network 44 (, known as the AMPRNet™, has been used by amateur radio operators to conduct scientific research and to experiment with digital communications over radio with a goal of advancing the state of the art of Amateur Radio networking, and to educate amateur radio operators in these techniques.

Amateur Radio Digital Communications is a non-profit California corporation formed to further these goals. It does so by managing the allocation of network resources, encouraging research and experimentation with networking protocols and equipment, publishing technical articles, and other activities to promote the public good of Amateur Radio digital communications and related fields. It is our hope that we may be able to contribute funding to worthwhile projects towards these goals.

Amateur Radio is an entirely volunteer activity performed by technically knowledgeable hobbyists who have proven their ability by passing government examinations (e.g., in the USA, exams are set by the Federal Communications Commission). No remuneration is permitted. Ham radio, as it is known, has proven its value in advancements of the state of the communications arts as well as in public service during disasters and times of emergency. (For more about ham radio, visit ARRL, RSGB, IARU or any of the many national amateur radio organizations.)