<Table> <Tr> <Th_colspan="2"> Big 12 Championship Game </Th> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Th> Sport </Th> <Td> Football </Td> </Tr> <Tr> <Th> Conference </Th> <Td> Big 12 Conference </Td> </Tr> <Tr> <Th> Current stadium </Th> <Td> AT&T Stadium </Td> </Tr> <Tr> <Th> Current location </Th> <Td> Arlington, Texas </Td> </Tr> <Tr> <Th> Played </Th> <Td> 1996--2010; 2017--present </Td> </Tr> <Tr> <Th> Last contest </Th> <Td> 2017 </Td> </Tr> <Tr> <Th> Current champion </Th> <Td> Oklahoma Sooners </Td> </Tr> <Tr> <Th> Most championships </Th> <Td> Oklahoma Sooners (11) </Td> </Tr> <Tr> <Th> TV partner (s) </Th> <Td> FOX </Td> </Tr> <Tr> <Th> Official website </Th> <Td> Big12Sports.com Football </Td> </Tr> <Tr> <Th_colspan="2"> Sponsors </Th> </Tr> <Tr> <Td_colspan="2"> Dr. Pepper </Td> </Tr> <Tr> <Th_colspan="2"> Host stadiums </Th> </Tr> <Tr> <Td_colspan="2"> <Ul> <Li> Trans World Dome (1996, 1998) </Li> <Li> Alamodome (1997, 1999, 2007) </Li> <Li> Arrowhead Stadium (2000, 2003, 2004, 2006, 2008) </Li> <Li> Texas Stadium (2001) </Li> <Li> Reliant Stadium (2002, 2005) </Li> <Li> AT&T Stadium (2009--2010, 2017--2021) </Li> </Ul> </Td> </Tr> <Tr> <Th_colspan="2"> Host locations </Th> </Tr> <Tr> <Td_colspan="2"> <Ul> <Li> St. Louis, Missouri (1996, 1998) </Li> <Li> San Antonio (1997, 1999, 2007) </Li> <Li> Kansas City, Missouri (2000, 2003, 2004, 2006, 2008) </Li> <Li> Irving, Texas (2001) </Li> <Li> Houston, Texas (2002, 2005) </Li> <Li> Arlington, Texas (2009, 2010, 2017--2021) </Li> </Ul> </Td> </Tr> </Table> <Tr> <Th_colspan="2"> Big 12 Championship Game </Th> </Tr>

Where is the big 12 championship being played
find me the text answering this question