(credit: Aurich Lawson)

The New York state attorney general’s office has sent letters to Verizon, Time Warner Cable, and Cablevision suggesting that the Internet speeds they deliver to consumers don’t match what the companies are promising.

The letters, sent Friday by Senior Enforcement Counsel Tim Wu, say the AG‘s office “is concerned that, for reasons substantially within [the ISP’s] control, consumers may not be experiencing the speeds advertised.” Here are links to the letters to VerizonCablevision, and Time Warner Cable.

The letters claim that interconnection disputes may be causing slowdowns, but they do not point to any specific disputes or offer any evidence that the ISPs’ speeds aren’t as advertised. When we asked AG Eric Schneiderman’s office for more specifics, we were told that the investigation was spurred by “complaints from customers,” internal analysis, and a one-year-old report from the Measurement Lab Consortium. We wrote about that report at the time it came out, but the situation has changed significantly since then because of new federal rules.

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