The picture is similar in the US, said AdMob, where the market is strongly influenced by the Apple iPhone.
Worldwide requests from iPhones grew 52% month over month to 359 million in November, giving the iPhone 6.3% of total advertising requests. In the US, the iPhone is the leading Wi-Fi-enabled handset, with 9.9% of requests.
In the US, 42% of iPhone requests are made from Wi-Fi, notably higher than most other Wi-Fi-capable phones which average between 10% and 20%.
AdMob collects and analyses handset and operator data from every advertising request in its network.