The documents leaked by former National Security Agency contractor Edward Snowden had also indicated that India was fifth among the countries that were under constant surveillance -- its nuclear, space and political discussions possibly being spied on.
Apple, along with other technology companies, is allowed only to report such numbers in increments of 1,000
The White House has not spelt out regulatory or legislative steps.
Intelligence whistleblower Edward Snowden has said that he has already "accomplished" his mission by leaking details of global electronic surveillance by America that have embarrassed the Obama administration and forced a review of the United States spying policies.
Germany's foreign ministry has called in British Ambassador Simon MacDonald to demand an explanation over allegations that his mission in Berlin is operating a "secret listening post" to spy on the German government.
United States intelligence whistleblower Edward Snowden has offered help to Germany to probe the National Security Agency's alleged spying on Chancellor Angela Merkel and other covert surveillance operations.
United States President Barack Obama may cancel his scheduled visit to Moscow to meet his Russian counterpart Vladimir Putin, as tension builds up between the two countries over fugitive intelligence leaker Edward Snowden, according to media reports.
The documents shed new light on how the government dealt with US Internet companies that were reluctant to comply with orders from the secretive US Foreign Intelligence Surveillance Court, which rules on government requests to conduct surveillance for national security issues.
Apple and Google adopted strong default encryption in late 2014.
The United States has named former tennis star Billie Jean King, one of the first prominent athletes to publicly acknowledge her homosexuality, to be in the U.S. delegation to the Winter Olympics in Sochi, where Russia's anti-gay policies have stirred controversy.
In defiance of the United States, two Latin American countries -- Venezuela and Nicaragua -- offered asylum to Edward Snowden, leaker of the United States secretive surveillance programme.
The United States, which spends billions monitoring adversaries like Al Qaeda, North Korea and Iran, pays an equal amount of attention on ally Pakistan and has ramped up surveillance of its nuclear arms, according to a report.