RBOC
Regional Bell Operating Company. To dismantle the nationwide monopoly of local and long-distance telephone service, the 1984 breakup of American Telephone & Telegraph Co. spawned seven regional Bell holding companies, known as the Baby Bells: Ameritech, Bell Atlantic, BellSouth, NYNEX, Pacific Telesis, Southwestern Bell and US West. Those seven holding companies subsumed all of the original 22 Bell "operating" companies. Due to mergers and acquisitions, the RBOC's are now comprised of Bell South, Qwest, SBC, and Verizon.
Resale
The ability of an entity that has not constructed a network of its own to offer to end users services located on a network built by another.
