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This report presents data highlighting the development of switching and transmission technologies in the local telephone networks. Included in the report are data on company switches and access lines, Signaling System 7 and integrated services digital network (ISDN) capability, as well as fiber optic and copper facilities. Data are aggregated to the holding company level.

  • For data after 1999, see the Monitoring Report.
  • 1999 Report. Released 10/00. PDF | ZIP
  • 1998 Report. Released 7/99. Includes data back to 1991. PDF | ZIP
  • 1991-1995. Released 3/97. PDF | ZIP
  • 1989-1993. Released 4/95. PDF | ZIP
Wednesday, November 6, 2013