The plan entails connecting Apple's data centers in California, Nevada, North Carolina and Oregon, and others to get content closer to Internet hubs in some densely populated markets, Bloomberg reported.
While Apple hasn't disclosed total costs, investments will run into the billions, Bloomberg reported.
Apple will stick with most of its existing vendors, and is mainly seeking to bolster its current infrastructure, according to the report.
Apple declined to comment on the report.
The iPhone maker said in February it would spend 1.7 billion euros ($1.9 billion) to build two data centers in Europe.
Apple said the centers, in Ireland and Denmark, would power Apple's online services, including the iTunes Store, App Store, iMessage, Maps and Siri for customers in Europe.
© Thomson Reuters 2015