Larry Chiang CEO Duck9 at San Francisco International Airport (SFO)

San Francisco, United States|October 31, 2014 via Foursquare for iOS

U new to SF? This is how we "cab"

+16

Coins

This place is swarming! 122 people are checked in here!

1505 miles since last check-in.

More check-ins than his friends at San Francisco International Airport.

First International Airport check-in in one month!

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