<Table> <Tr> <Th_colspan="2"> Seattle Seahawks </Th> </Tr> <Tr> <Td_colspan="2"> Current season </Td> </Tr> <Tr> <Td_colspan="2"> Established June 4, 1974; 43 years ago (1974 - 06 - 04) First season: 1976 Play in CenturyLink Field Seattle, Washington Headquartered in the Virginia Mason Athletic Center Renton, Washington </Td> </Tr> <Tr> <Th_colspan="2"> </Th> </Tr> <Tr> <Td_colspan="2"> <Table> <Tr> <Td> </Td> <Td> </Td> </Tr> <Tr> <Td> Logo </Td> <Td> Wordmark </Td> </Tr> </Table> </Td> </Tr> <Tr> <Th_colspan="2"> League / conference affiliations </Th> </Tr> <Tr> <Td_colspan="2"> <P> National Football League (1976--present) </P> <Ul> <Li> American Football Conference (1977--2001) <Ul> <Li> AFC West (1977--2001) </Li> </Ul> </Li> <Li> National Football Conference (1976, 2002--present) <Ul> <Li> NFC West (1976, 2002--present) </Li> </Ul> </Li> </Ul> </Td> </Tr> <Tr> <Td_colspan="2"> Current uniform </Td> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Th> Team colors </Th> <Td> <P> College Navy, Action Green, Wolf Grey </P> </Td> </Tr> <Tr> <Th> Mascot </Th> <Td> Blitz, Boom, Taima the Hawk (live Augur hawk) </Td> </Tr> <Tr> <Th_colspan="2"> Personnel </Th> </Tr> <Tr> <Th> Owner (s) </Th> <Td> Paul Allen </Td> </Tr> <Tr> <Th> Chairman </Th> <Td> Paul Allen </Td> </Tr> <Tr> <Th> CEO </Th> <Td> Peter McLoughlin </Td> </Tr> <Tr> <Th> President </Th> <Td> Peter McLoughlin </Td> </Tr> <Tr> <Th> General manager </Th> <Td> John Schneider </Td> </Tr> <Tr> <Th> Head coach </Th> <Td> Pete Carroll </Td> </Tr> <Tr> <Th_colspan="2"> Team history </Th> </Tr> <Tr> <Td_colspan="2"> <Ul> <Li> Seattle Seahawks (1976--present) </Li> </Ul> </Td> </Tr> <Tr> <Th_colspan="2"> Team nicknames </Th> </Tr> <Tr> <Td_colspan="2"> <Ul> <Li> The' Hawks </Li> <Li> The Blue Wave (1984--1986) </Li> <Li> The Legion of Boom (secondary, 2011--present) </Li> </Ul> </Td> </Tr> <Tr> <Th_colspan="2"> Championships </Th> </Tr> <Tr> <Td_colspan="2"> <P> League championships (1) </P> <Ul> <Li> Super Bowl championships (1) 2013 (XLVIII) </Li> </Ul> </Td> </Tr> <Tr> <Td_colspan="2"> <P> Conference championships (3) </P> <Ul> <Li> NFC: 2005, 2013, 2014 </Li> </Ul> </Td> </Tr> <Tr> <Td_colspan="2"> <P> Division championships (10) </P> <Ul> <Li> AFC West: 1988, 1999 </Li> <Li> NFC West: 2004, 2005, 2006, 2007, 2010, 2013, 2014, 2016 </Li> </Ul> </Td> </Tr> <Tr> <Th_colspan="2"> Playoff appearances (16) </Th> </Tr> <Tr> <Td_colspan="2"> <Ul> <Li> NFL: 1983, 1984, 1987, 1988, 1999, 2003, 2004, 2005, 2006, 2007, 2010, 2012, 2013, 2014, 2015, 2016 </Li> </Ul> </Td> </Tr> <Tr> <Th_colspan="2"> Home fields </Th> </Tr> <Tr> <Td_colspan="2"> <Ul> <Li> Kingdome (1976--1999) </Li> <Li> Husky Stadium (2000--2001) </Li> <Li> CenturyLink Field (2002--present) </Li> </Ul> </Td> </Tr> </Table> <Tr> <Th_colspan="2"> Seattle Seahawks </Th> </Tr>

How many superbowl rings does the seahawks have