In Australia it has traditionally been bundled into a catch-all "Monthly (or whatever) Service Charge" listed with the call costs.
Since true land-line competition began here, this charge had gone steadily up and and up (and up!) even though the actual cost of providing dial tone to the vast majority has plummeted in the same period. Call costs (where there is true competition) have dived in the same period.
It's a little hard to reconcile how the fixed cost keeps going up when almost all local exchanges are now fully digital/automated, and maintenance of external plant has been cut way back in the name of "efficiency". There used to be a lot more people employed keeping the service up than in the past, but it costs everyone a lot more.
Most people used to just grumble and accept it, a lot now go VoIP and let Telstra know where they can insert their expensive dial-tone......
-- Regards, David.
David Clayton Melbourne, Victoria, Australia. Knowledge is a measure of how many answers you have, intelligence is a measure of how many questions you have.