catflap.org Online Dictionary Query

  inter-exchange carrier
       
           (IXC) A company allowed to handle
          long-distance calls following the break-up of the Bell system
          in the US by anti-trust regulators.
       
          Local Exchange Carriers (LEC) are not allowed to handle
          long-distance traffic and Inter Exchange carriers are not
          allowed to handle local calls.
       
          (2002-08-28)
       
       

  inter-exchange carrier /ˌɪntəɹɛkstʃˈeɪndʒ kˈaɹiˌə/
  operator međumjesnih veza

  interexchange carrier /ˌɪntəɹɛkstʃˈeɪndʒ kˈaɹiˌə/
  operator međugradskih veza, tvrtka koja nudi međunarodne veze