It's no surprise that smartphone data consumption is on the rise, but to which phones do bandwidth hogs gravitate? A Wednesday study finds that Android users are "particularly data hungry," though iOS users aren't exactly slacking in that department either.

It's no surprise that smartphone data consumption is on the rise, but to which phones do bandwidth hogs gravitate? A Wednesday study finds that Android users are "particularly data hungry," though iOS users aren't exactly slacking in that department either.

The data, from network technology firm Arieso, looked at data consumption in a "post-iPhone 3G era" using the company's ariesoGEO tool and found that users have an insatiable appetite for data, one that easily eclipses voice calling.

Specifically, Arieso compared data use on newer smartphones like the BlackBerry Bold 9700, Google Nexus One, HTC Desire, Sony Ericsson Xperia, and Apple iPhone 4 against the older model iPhone 3G.

Arieso found that iPhone 4 users access 44 percent more data than iPhone 3G users; they download 41 percent more data to their phones, and spend 67 percent more time connected to the data network.

Users on Android phones, meanwhile, are particularly data hungry, Arieso said, consuming more data than iPhone 3G or iPhone 4 users in terms of data call volumes, time connected to the network, and data volume. For example, Samsung Galaxy users typically uploaded 126 percent more data than iPhone3G users, and HTC Desire users download 41 percent more data than iPhone3G users.

Not surprisingly, more time spent using data means fewer voice calls. Voice calls per subscriber remains roughly flat, Arieso said, "suggesting that the new breed of smartphone subscribers use their devices first and foremost for data consumption rather than making phone calls."

"Smartphone subscriptions are rising and so too is subscriber appetite for mobile data. Since the launch of the iPhone3G, we've seen a multitude of popular new smartphones arrive on the market, successfully driving app and service usage," Michael Flanagan, CTO of Arieso, said in a statement. "It's a trend that's set to continue. Operators must now be able to quantify the impact of the devices they support, and how subscribers use them, and prepare their networks accordingly."

Bandwidth concerns have troubled the wireless industry for years, with many asking the government to open up more spectrum for mobile use. CTIA, the wireless industry trade group, said recently that for 2011.

The a long-term plan to free up 500 MHz in the next 10 years and 300 MHz in the next five years, and last month, the Commerce Department a more specific plan for getting that accomplished. Several have also .