Mobile broadband provider Three continued on its growth curve during the first six months of 2014, adding customers and boosting revenues.
The firm delivered an operating profit of £123 million between January and June, compared to £86 million in the equivalent period a year earlier.
During the second six months of 2013, Three delivered an operating profit of £121 million.
"The improved profit was driven by both growth in customer numbers and growth in data usage per customer," the broadband provider claimed.
It said average data usage per customer - 2.6GB per month - remained "significantly higher" than the industry average.
This was up from 1.8GB in June last year and 2.2GB in December.
Three claimed it has introduced "a differentiated range of benefits" to improve the customer experience.
Dave Dyson, Chief Executive Officer at Three, said the company "has delivered a huge amount in a short space of time".
He said he is proud of the "positive improvements" Three has made, such as the launch of new contract handset and SIM-only plans, and new tools to help people manage their spending.
Three has also extended its roaming initiative to include France and four other new countries, meaning customers can now use their UK allowance for data, calls and text at no extra cost.
"We have recently won awards for our 3G and 4G network coverage and speed," Mr Dyson stated.
"And our Three inTouch App extends our network to areas where conventional mobile phone networks cannot reach, like in the London Underground."
Richard Woodward, Chief Financial Officer at the firm, said Three has achieved "sustained and profitable growth" while introducing new tools and plans to help make mobile better for customers.
He claimed the steps taken by the company over the last six months have helped Three attract and retain engaged and profitable customers, while maintaining an efficient cost structure.