Related Clues:
- Green card issuer
- Co. called 'Big Blue'
- Bar assn. member
- ThinkPad producer
- Sprint alternative
- DOS popularizer
- Fortran language developer
- Justice Dept. employee
- Visa competitor
- Telecom giant
- Part of an 800 collect call number
- Legal rep.
- Brief writer: Abbr.
- Part of a collect call number, perhaps
- NASDAQ alternative