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
DTN IQFeed Windows DTN.IQ Windows or Mac OS X	Internet	real-time, delayed, or end-of-day	800.475.4755	More About DTN IQFeed
DTN Market Access Windows or Mac OS X	Internet	non-streaming intra-day or end-of day	800.475.4755	More About DTN Market Acess
NEW! Infinity Futures Windows	Internet	real-time futures		More About Infinity
NEW! TransAct Futures Windows	Internet	real-time futures	877-872-3303	More About TransAct
eSignal Windows	Internet	real-time, delayed, or end-of-day	800.815.8256	More about eSignal
Interactive Brokers Windows or Mac OS X	Internet	real-time	877.442.2757	More about Interactive Brokers
Yahoo! Finance Windows or Mac OS X	Internet	end-of-day	NA	More About Yahoo! Finance
opentick Windows	Internet	real-time	800.open.tick	More about opentick
myTrack Windows or Mac OS X	Internet	real-time or  delayed	800.698.7225	More about myTrack
Dial/Data Windows or Mac OS X	Internet	end-of-day; can request delayed quotes throughout day	800.275.5544	More about Dial/Data
DTN Windows or *Mac OS X	Satellite	real-time, delayed, or end-of-day	800.485.4000	More about DTN
*DTN Mac requires a DTN 8080 satellite receiver unit, with an Ethernet connection.