There are now almost 509 million broadband deal subscriptions worldwide, according to latest figures from Point Topic.
The analyst firm reported that 508,761,837 households were registered as paying broadband customers in the third quarter of 2010.
Some 14.3 million lines were added over the three-month period, as the global subscriber base increased by 2.88 per cent on Q2 2010.
Robin Mersh, Chief Executive Officer of the Broadband Forum, which analysed the Point Topic data, said patterns of growth are shifting as some markets reach saturation.
He commented that emerging markets have shown remarkable growth rates over this year.
"In more and more countries we are seeing more than 80 per cent availability and huge take up of broadband," Mr Marsh stated, describing the figure as "a major achievement".
Last year, ABI Research reported there were 271 million mobile broadband subscribers using dongle services around the world.