• Y2ktel.Com Systems
  3615 Lincoln Ave
• Unified Tel Data
  1611 Telegraph Ave
• Tucker Technology Inc
  436 14th St # 723
• Telemedia Communication Syst
  351 Embarcadero
• Mastec North America Inc
  515 23rd Ave
• Oakland Telecom Access Center One
  720 2nd St
• Mci
  1587 Franklin St
• Mass-Tel Communications
  
• G Solutionz Inc
  
• Executive Phone Svc
  
• Destiny 2000
  4707 Telegraph Ave
• Deluxe Telephone Svc
  
• Bay Telephone Co
  944 Market St
• Apex Telecom
  113 10th St
• Ane Communication
  2934 Telegraph Ave