AT&T and 7 RBOCs

Study/- 2009 2009.11.05 21:20
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Who are the Regional Bell Operating Companies (RBOCs)?

There were originally 7 RBOCs.  Today there are only 3:

Qwest - created by the merger of US West and Qwest Communications International, Inc.
at&t - created by the merger of SBC, Ameritech, and Pacific Telesis, AT&T, and Bell South..
Verizon - created by the merger of Bell Atlantic, Nynex, and GTE.


The original 7 RBOCs were formed from the 1984 breakup of AT&T.  AT&T originally consisted of 22 Bell Operating Companies (BOCs).  The 1984 Divestiture merged the 22 BOCs into 7 RBOCs:

Ameritech
 - Illinois Bell Telephone Company
 - Indiana Bell Telephone Company
 - Michigan Bell Telephone Company
 - Ohio Bell Telephone Company
 - Wisconsin Bell Telephone Company

Bell Atlantic
 - Bell Telephone Company of Pennsylvania
 - Chesapeake and Potomac State Telephone Company of Virginia
 - Diamond State Telephone Company
 - New Jersey Bell Telephone Company
 - Potomac State Telephone Company of Maryland
 - Potomac State Telephone Company of Washington, D.C.
 - Potomac State Telephone Company of West Virginia

Bell South
 - South Central Bell Telephone Company
 - Southern Bell Telephone Company

Nynex
 - New England Telephone Company
 - New York Telephone Company

Pacific Telesis
 - Nevada Bell Telephone Company
 - Pacific Bell Telephone Company

Southwestern Bell Communications (SBC Communications)
 - Southwestern Bell Telephone Company

US West
 - Mountain Bell Telephone Company
 - Northwestern Bell Telephone Company
 - Pacific Northwest Bell Telephone Company


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