The phone kiosks generate $62 million in advertising revenue annually — and last year the city got $13.7 million of the take, triple what it pulled in from calls.

Over all, the number of pay phones in New York is falling, as it is throughout the country. But in a phenomenon unique to New York, the phones are more valuable than ever, thanks to the intense competition among advertisers for attention in a city of eight million.

Phone companies say the pay phones are still necessary, noting that during 9/11 and the 2003 blackout, people lined up to use them. But it is the phone kiosks’ desirability to advertisers, who love them because they are inexpensive and plentiful, that appears to be driving pressure on the city for permission to install new phones in choice locations.

Since 2003, every new phone the city has authorized has been put at the curb, the only spot where city regulations permit advertising. It has approved moving 465 pay phones from alongside buildings to the curb.