He said this was because 200,000 households were signing up to the Telephone Preference Service each month. The total number of households registered with the database of individuals who do not want to receive marketing calls is currently 14.5 million.
Lloyd was speaking at this week's Institute of Fundraising national convention in London. He also admitted it was impossible to regulate online fundraising. "If an international charity were to fundraise from abroad, there would be no way of regulating that," he said.
John Grain, director of supporter care at charity marketing agency Cascaid, told delegates they should learn from the pornography industry about the internet.
Grain said: "It's because of the porn industry that we have passwords, multiple access to content, pay-to-view content, live streaming and movie downloads."