• A T & T Cits
  575 Burnett Ave
• Telespree
  525 Brannan St
• Telecon Ltd Inc
  55 Hawthorne St
• Tel Save Inc
  303 2nd St
• Tcg Sales
  1 Bush St
• T-Systems Inc
  425 Market St # 22
• Sympel Communications
  300 Brannan St
• Sbc
  666 Folsom St # 1126
• S F Telephone
  41 Wood St
• Real Telephone
  
• Mci
  375 Newhall St
• Mbr Phone
  
• Lilly Erin Architecture
  2442 California St
• Inc 21 Communications
  
• I P Networks Inc
  365 Main St
• I P Global Voice Inc
  1 Pier
• I P Deliver
  900 N Point St
• I P Deliver
  300 California St
• United Telcom
  880 Dubuque Ave
• United Telcom
  1305 Grandview Dr
• X O Communications Inc
  1 Front St
• X O Communications Inc
  505 Sansome St