11.   Just last week, Illinois approved an application by MFS to become a full-service telephone carrier.

12.   Long-distance telephone carriers and credit card companies have been big players in the frequent flier marketing game.

13.   Not so Ameritech, which after its Tele Danmark deal would own pieces of at least five overseas telephone carriers, mostly in Europe.

14.   SBC is not the first regional telephone carrier to move to shore up its struggling pay phone business.

15.   Sprint and WorldCom took top marks among long-distance telephone carriers serving Southland households in a J.D. Power and Associates survey.

16.   Telephone carriers have rapidly been acquiring Internet companies as they seek to offer a full bundle of voice and data services to their customers.

17.   Telstra, which formerly held a monopoly on phone calls in Australia, is the largest of the two Australian telephone carriers.

18.   That depends mainly on the card issuer and, to a lesser degree, the telephone carrier over whose lines the calls are transmitted.

19.   Telephone carriers now must make do with the prefixes they currently hold and any unused numbers in those prefixes.

20.   The company makes failure-proof computer systems that run non-stop for such customers as telephone carriers, banks, and airlines.