Below is a listing of the data services (data feeds) that Investor/RT currently supports, along with contact information and Internet addresses.
  

Data Service	Transmission Method(s)	Timeliness of Quotes	Phone Number	Additional Information
eSignal Windows	Internet	real-time, delayed, or end-of-day	800.815.8256	More about eSignal
DTN IQFeed Windows	Internet	real-time, delayed, or end-of-day	800.475.4755	More About DTN IQFeed
DTN.IQ Windows or Macintosh	Internet	real-time, delayed, or end-of-day	800.475.4755	More About DTN.IQ
New! DTN Market Access Windows Only	Internet	non-streaming intra-day or end-of day	800.475.4755	More About DTN Market Acess
New! opentick Windows	Internet	real-time	800.open.tick	More about opentick
Interactive Brokers Windows or Macintosh	Internet	real-time	877.442.2757	More about Interactive Brokers
New! Yahoo! Finance Windows or Macintosh	Internet	end-of-day	NA	More About Yahoo! Finance
myTrack Windows or Macintosh	Internet	real-time or  delayed	800.698.7225	More about myTrack
Dial/Data Windows or Macintosh	Internet	end-of-day; can request delayed quotes throughout day	800.275.5544	More about Dial/Data
DTN Windows or *Macintosh	Satellite	real-time, delayed, or end-of-day	800.485.4000	More about DTN
*DTN Mac support is only with a DTN 8080 satellite receiver unit, with an Ethernet connection.