They offer upto 24mb, however to get upto these speeds you have to pay extra for their ‘boost’ add-on. They aim give you the fastest broadband they can provide, which depends on how close you live to the exchange, what your wiring is like and how good your line is.
In a study carried out by UK telecoms regulator Ofcom in 2009, TalkTalk was found to have the lowest speed of any major broadband ISP in Britain.
They do offer their own Talk Talk broadband speed test service to see how it relates to both the maximum potential speed and the advertised ‘up to’ broadband speeds.
Alternatively, you may wish to try alternative broadband speed test services: