Phone Phreak

Definition

(Lapsley 2013)

  1. A person who is obsessively interested in learning about,
    exploring, or playing with the telephone network.
  2. A person who is interested in making free telephone calls.

References

Lapsley, Phil. 2013. Exploding the Phone; the Untold Story of the Teenagers and Outlaws Who Hacked Ma Bell. Grove Press.