According to findings by comparison site uSwitch.com, there are massive speed discrepancies between locations that are, in many cases, just a few miles apart, and in close proximity to major UK cities.

In the worst case there is a difference of up to 89% between the fastest and slowest speeds.

The consumer speed test data, which was collected across the 30 biggest UK post towns, showed that the Birmingham area has the biggest discrepancy between slowest and fastest broadband speeds.

In postcode district B42, which covers the areas of Perry Barr, Great Barr and Hamstead, broadband download speeds over the past six months have averaged an impressive 20.9Mbps but, just a mile and a half away in B35 (Castle Vale), average speeds are a massive 89% slower, at just 2.2Mbps.

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At this speed it would take 11 excruciating hours to download a BluRay film.

Those living in Glasgow, Bristol and Northampton areas also experience massive discrepancies between areas.

Marie-Louise Abretti, telecoms expert at uSwitch.com, said: “Despite the Government’s intense focus on super-fast speeds, this data reveals massive inconsistencies, with speeds fluctuating dramatically between areas located just a few miles apart.

“Although a recent Ofcom report revealed that the UK’s average broadband speed has increased by a third in the last year, our data suggests that this isn’t the whole picture.”

Even Londoners have to mind the gap. Average speeds in the capital’s slowest postcode district EC2Y, which covers Barbican, are as little as 5.3Mbps.

By contrast, those in SE7, Charlton in Greenwich, enjoy the fastest online surfing, with speeds of 22.46Mbps – a difference of 76%.

 

Contrary to expectation, the most central postcode districts are not usually the fastest for broadband speeds, with the exception of the Reading area – where RG1 is the fastest postcode district with speeds of 22.87Mbps – as well as the post towns of Coventry, Portsmouth and Dudley.

Abretti added: “If you suffer from sluggish broadband, it could be because of the device you’re using to get online with or your router. You could also try boosting your speed by plugging in instead of surfing wirelessly.

“Even where your router is located can make a difference – try to keep it off the floor and away from TV monitors, stereo speakers and halogen lights.

“If you’re still stuck suffering from slow or inconsistent speeds, check to see what service you could be getting with another provider. Signing up to a fibre service is a sure fire way of speeding up your broadband – and almost two thirds of the country now has this option.

“However, many consumers either don’t know about it or are put off by the price. It may cost you more, but could be worth it, especially as several providers have great introductory offers at the moment.”