The Seven Sisters of the Telephone

The "Baby Bells"

Officially, the Regional Bell Operating Companies (RBOCs)

Formed January 1, 1984

• Bell Atlantic (acquired GTE 2002 and changed name to Verizon)
  • The Bell Tel. Co. of Penna.
  • New Jersey Bell Tel. Co.
  • The Diamond State Tel. Co. (DE)
  • Chesapeake & Potomac Telephone Co (DC)
  • C & P Tel Co of MD
  • C & P Tel Co of VA
  • C & P Tel Co of WV
• NYNEX (merged the two subsidiaries January 1, 1994; merged by Bell Atlantic 1997)
  • The New York Tel. Co.
  • New England T & T Co. (CT, ME, MA, NH, RI, VT)
• Bell South
  • Southern Bell T & T Co. (GA, NC, SC, FL)
  • South Central Bell Tel. Co. (AL, MS, LA, KY, AR, TN)
• USWest (merged by Qwest in 2000)
  • Northwestern Bell Tel. Co. (NE, SD, ND, MN, IA)
  • Pacific Northwest Bell Tel. Co. (WA, OR, ID)
  • The Mountain States T & T Co. (CO, UT, WY, MT, AZ, NM)
• Southwestern Bell (now SBC)
  • Southwestern Bell Tel. Co. (MO, OK, TX, KS)
• AmeriTech (acquired by SBC 1997; merged 2002)
  • The Ohio Bell Tel. Co.
  • Indiana Bell Tel. Co.
  • Illinois Bell Tel. Co.
  • Michigan Bell Tel. Co.
  • Wisconsin Tel. Co.
• Pacific Telesis (acquired by SBC 1997; merged 2002)
  • Bell Tel. Co. of Nevada
  • Pacific T & T Co. (CA)