Term of the Moment
content-addressable memory
Definition: IXC
(1) (IntereXchange Carrier) An organization that provides interstate (long distance) communications services within the U.S., which includes AT&T, MCI, T-Mobile and more than 700 others. See LATA.
(2) (IXC Communications Inc., Austin, TX) A wholesale telecommunications provider that offers private line, long-distance, frame relay and ATM services over its nationwide fiber-optic network. IXC is an IXC. In 1999, the company merged with Cincinnati Bell Inc. and renamed itself BroadWing, Inc.
IXCs and LATAs
(2) (IXC Communications Inc., Austin, TX) A wholesale telecommunications provider that offers private line, long-distance, frame relay and ATM services over its nationwide fiber-optic network. IXC is an IXC. In 1999, the company merged with Cincinnati Bell Inc. and renamed itself BroadWing, Inc.
If an IXC does not have a point of presence (POP) in sending and receiving LATAs, it has to hand off the call to another IXC. For example, in the illustration above, if IXC 1 receives a call from LEC 2 destined for LEC 3, it has to hand off the call to IXC 2.