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DATAPAC was Canada's packet switched X.25-equivalent data network. Operated first by Trans-Canada Telephone System,[1] then Telecom Canada, then the Stentor Alliance, it finally reverted to Bell Canada when the Stentor Alliance was dissolved.[2]


One of the uses of DATAPAC network was to transmit debit card transactions between retailers and the financial institutions (banks) through the Interac Direct Payment EFTPOS network. Some automatic teller machines also used the DATAPAC network.[3]

It was also used to transmit lottery ticket numbers that are purchased by customers.

Types of connections[edit]

  • DATAPAC 3101 Teletype (ASCII) connections, both dial and leased.
  • DATAPAC 3201 connections were made by using leased line connections in a speciality financial industry code.
  • DATAPAC 3000 X.25 connections

Future use[edit]

With the advent of lower-cost WAN technologies like IP/MPLS, the importance of DATAPAC diminished in the marketplace. Bell phased out support for DATAPAC, discontinuing the service at the end of 2009.[4]

See also[edit]


  1. ^ Planning an Evolution: The Story of the Canadian Payments Association, 1980-2002 Archived October 29, 2008, at the Wayback Machine.
  2. ^ "Bell acquiring" (PDF). Retrieved 23 July 2018.
  3. ^ "Calypso Canada speeds ahead with INETCO CashGate". INETCO. 2006. Archived from the original on 2007-09-29.
  4. ^ "Phasing out" (PDF). Retrieved 23 July 2018.

External links[edit]