25 selected
- Not filled in
- IBM
- ICG
- Ijshockey
- IND-TAM
- Industry
- Informatica
- Insurance
- Int'l Comm
- Intercall Chip 1792
- Intercall Chip 1793
- Intercall Database
- International Telecommunications Union
- Internattional calling card
- InTouch Card
- IO
- IOC President's cup
- Iran Telecom chip
- ISQ
- IT-EUR
- IT-LC
- ITC
- Itineris 2200
- ITJ chip
- ITU Plenipotentiary Conference
- Izicard