State Attorney General Eric Schneiderman is suing Spectrum-Time Warner Cable and Charter Communications for allegedly defrauding New Yorkers over internet speeds and performance.

Schneiderman says the company conducted a deliberate scheme to defraud and mislead New Yorkers by promising internet service that they knew they could not deliver.

The suit alleges that subscribers' internet speeds for premium plans were up to 70 percent slower than promised.

The AG says the suit seek to compensate Spectrum-Time Warner Cable subscribers for fives years of broken promises and could be worth upwards of hundreds of million of dollars.

“The allegations in today’s lawsuit confirm what millions of New Yorkers have long suspected -- Spectrum-Time Warner Cable has been ripping you off,” said Schneiderman. “Today’s action seeks to bring much-needed relief to the millions of New Yorkers we allege have been getting cheated by Spectrum-Time Warner Cable for far too long. Even now, Spectrum-Time Warner Cable continues to offer Internet speeds that we found they cannot reliably deliver.”

Spectrum-TWC has 2.5 million subscribers across New York state.