An investigation has been launched by New York's attorney general to determine whether giant ISPs Time Warner Cable, Verizon and Cablevision have misled customers on broadband speeds.
According to reports, AG Eric Schneiderman's top enforcement counsel, Tim Wu, fired off letters to the companies on Friday, demanding – among other things – that the telcos hand over test data of their internet speeds.
The three firms have until 8 November to respond to the requests.
Schneiderman said: "New Yorkers deserve the internet speeds they pay for. But, it turns out, many of us may be paying for one thing, and getting another."
It's understood that one of the main areas of concern relate to interconnection arrangements with other networks for the exchange of data.
Cablevision and Time Warner Cable told Reuters that they would work with the AG, but Verizon was yet to say anything in public about the probe.
The Register sought comment from New York's AG office, but we hadn't heard back at time of publication. ®