• Local Exchange Service
• 1-800-Reconex d/b/a USTel
• Access Point
• ACN
• ATX
• Broadview Networks, Inc.*
• Budget Phone (prepaid)
• Cavalier Telephone Mid-Atlantic, LLC
• Comtel Telcom d/b/a Excel Telecommunications
• Comtel Telcom d/b/a VarTec
• Lightwave
• Matrix d/b/a Trinsic*
• MetTel*
• MCImetro Access Transmission Services LLC d/b/a Verizon Access Transmission Services
• NationsLine
• RNK, Inc.*
• SBC Long Distance d/b/a AT&T Long Distance
• Starpower d/b/a RCN
• Verizon Washington, DC
• Prepaid Local Service
• Budget Phone
• Wireless or Cellular (Bundles local and long distance) (Not tariffed at the DCPSC)
• Pay Telephones
• Phone cards
• Voice over IP (Internet Protocol) Telephony (Not tariffed at DCPSC)
• AT&T, Verizon, Vonage
• Voice Over Cable (Not tariffed at DCPSC)
• Comcast

*Did not have residential customers as of December 31, 2006