Apple’s ubiquitous iPhone is now outselling all other smartphones combined, including prominent Android devices, on AT&T and Sprint, according to new data from Canaccord Genuity.

“We believe iPhones are outselling all other smartphones combined at Sprint and AT&T and selling at roughly equal volume to all Android smartphones at Verizon,” Canaccord Genuity analyst told AllThingsD today.

That’s quite the achievement for Apple’s popularity. The iPhone came out on top even with strong Android challengers like Samsung’s Galaxy S II and Galaxy Nexus phones and other Android devices. Sprint sold 1.8 million iPhone 4S devices last quarter while AT&T activated 7.6 million iPhone units in its last quarter.

The iPhone has been successful around the world, but the U.S. is its biggest stronghold. Canaccord Genuity said that Apple’s biggest threat for market share in the near term for Europe and Asia would be Samsung, which posted strong gains in the “seasonally weak” March quarter.

Click the table below for a more detailed look at the carrier smartphone share data: