American League East

Baltimore Orioles
Boston Red Sox
New York Yankees
Tampa Bay Rays
Toronto Blue Jays

American League Central

Chicago White Sox
Cleveland Indians
Detroit Tigers
Kansas City Royals
Minnesota Twins

American League West

Houston Astros
Los Angeles Angels
Oakland Athletics
Seattle Mariners
Texas Rangers

National League East 

Atlanta Braves
Miami Marlins
New York Mets
Philadelphia Phillies
Washington Nationals

National League Central

Chicago Cubs
Cincinnati Reds
Milwaukee Brewers
Pittsburgh Pirates
St. Louis Cardinals

National League West

Arizona Diamondbacks
Colorado Rockies
Los Angeles Dodgers
San Diego Padres
San Francisco Giants

Baltimore Orioles 

Franchise Founded: 1901
City: Baltimore, Maryland
League: American League East
Other Names: Milwaukee Cream Citys (1901), St. Louis Browns (1902 – 1953)
Former Stadiums: Lloyd Street Grounds, Sportsman Stadium, Memorial Stadium 
Current Stadium: Camden Yards
Pennants: 1944, 1966, 1969, 1970, 1971, 1979, 1983
World Series Titles: 1966, 1970, 1983
Retired Numbers: 4, 5, 8, 20, 22, 33, 42

Boston Red Sox

Franchise Founded: 1901
City: Boston, Massachusetts
League: American League East
Other Names: Boston Americans/Pilgrims (1901 – 1907) 
Former Stadiums: Huntington Avenue Grounds
Current Stadium: Fenway Park
Pennants: 1903, 1904, 1912, 1915, 1916, 1918, 1946, 1967, 1975, 1986, 2004, 2007, 2013, 2018
World Series Titles: 1903, 1912, 1915, 1916, 1918, 2004, 2007, 2013, 2018
Retired Numbers: 1, 4, 6, 8, 9, 14, 26, 27, 34, 45, 42

New York Yankees

Franchise Founded: 1901
City: New York City, New York
League: American League East
Other Names: Baltimore Orioles (1901 – 1902), New York Highlanders (1903 – 1912) 
Former Stadium: Oriole Park, Hilltop Park, Polo Grounds, Yankee Stadium, Shea Stadium
Current Stadium: Yankee Stadium II
Pennants: 1921, 1922, 1923, 1926, 1927, 1928, 1932, 1936, 1937, 1938, 1939, 1941, 1942, 1943, 1947, 1949, 1950, 1951, 1952, 1953, 1956, 1957, 1958, 1960, 1961, 1962, 1964, 1976, 1977, 1978, 1981, 1996, 1998, 1999, 2000, 2001, 2003, 2009
World Series Titles: 1923, 1927, 1928, 1932, 1936, 1937, 1938, 1939, 1941, 1942, 1943, 1947, 1949, 1950, 1951, 1952, 1953, 1955, 1956, 1957, 1958, 1960, 1961, 1962, 1963, 1964, 1976, 1977, 1978, 1981, 1996, 1998, 1999, 2000, 2009
Retired Numbers: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 15, 16, 20, 23, 32, 37, 42, 44, 46, 49, 51

Tampa Bay Rays

Franchise Founded: 1998
City: Tampa Bay, Floridia 
League: American League East
Other Names: Tampa Bay Devil Rays (1998 – 2007) 
Former Stadiums: None
Current Stadium: Tropicana Field
Pennants: 2008, 2020
World Series Titles: None
Retired Numbers: 12, 66, 42

Toronto Blue Jays

Franchise Founded: 1977
City: Toronto, Ontario, Canada
League: American League East
Other Names: None
Former Stadiums: Exhibition Stadium, TD Ballpark, Sahlen Field
Current Stadium: Rogers Centre
Pennants: 1992, 1993
World Series Titles: 1992, 1993
Retired Numbers: 12, 32, 42

Chicago White Sox

Franchise Founded: 1900
City: Chicago, Illinois 
League: American League Central
Other Names: Chicago White Stockings (1900- 1903)
Former Stadiums: South Side Park, Comiskey Park
Current Stadium: Guaranteed Rate Field
Pennants: 1901, 1906, 1917, 1919, 1959, 2005
World Series: 1906, 1917, 2005
Retired Numbers: 2, 3, 4, 9, 11, 14, 16, 19, 35, 56, 72, 42

Cleveland Indians

Franchise Founded: 1894
City: Cleveland, Ohio
League: American League Central
Other Names: Grand Rapids Rustlers (1894 – 1899), Cleveland Lake Shores (1900), Cleveland Bluebirds (1901), Cleveland Broncos (1902), Cleveland Naps (1903 – 1914)
Former Stadiums: League Park, Cleveland Stadium
Current Stadium: Progressive Field
Pennans: 1920, 1948, 1954, 1995, 1997, 2016
World Series: 1920, 1948
Retired Numbers: 3, 5, 14, 18, 19, 20, 21, 25, 42

Detroit Tigers 

Franchise Founded: 1901
City: Detroit, Michigan
League: American League Central
Other Names: None
Former Stadiums: Burns Park, Tiger Stadium
Current Stadium: Comerica Park
Pennants: 1907, 1908, 1909, 1934, 1935, 1940, 1945, 1968, 1984, 2006, 2012
World Series Titles: 1935, 1945, 1968, 1984
Retired Numbers: 1, 2, 3, 5, 6, 11, 16, 23, 42, 47

Kansas City Royals

Franchise Founded: 1969
City: Kansas City, Missouri
League: American League Central
Other Names: None
Former Stadiums: Municipal Stadium
Current Stadium: Kauffman Stadium
Pennants: 1980, 1985, 2014, 2015
World Series Titles: 1985, 2015
Retired Numbers: 5, 10, 20, 42

Minnesota Twins

Franchise Founded: 1901
City: Minneapolis, Minnesota
League: American League Central
Other Names: Washington Senators I (1901 – 1904; 1956 – 1960),  Washington Nationals I (1901 – 1955)
Former Stadiums: American League Park, National Park, Griffith Stadium, Metropolitan Stadium, Hubert H. Humphrey Metrodome
Current Stadium: Target Stadium
Pennants: 1924, 1925, 1933, 1965, 1987, 1991
World Series Titles: 1924, 1987, 1991
Retired Numbers: 3, 6, 7, 10, 14, 28, 29, 34, 42

Houston Astros

Franchise Founded: 1962
City: Houston, Texas
League: American League West
Other Names: Houston Colt .45s (1962 – 1964)
Former Stadiums: Colt Stadium, The Astrodome
Current Stadium: Minute Maid Park
Pennants: 2005, 2017, 2019
World Series: 2017
Retired Numbers: 5, 7, 24, 25, 32, 33, 34, 40, 49, 42

Los Angeles Angels 

Franchise Founded: 1961
City: Anaheim, California
League: American League West
Other Names: Los Angeles Angels (1961 – 1965), California Angels (1965 – 1996), Anaheim Angels (1997 – 2004)
Former Stadiums: Los Angeles Wrigley Field, Dodger Stadium (shared with Los Angeles Dodgers)
Current Stadium: Angel Stadium
Pennants: 2002
World Series Titles: 2002
Retired Numbers: 11, 26, 29, 30, 50, 42

Oakland Athletics

Franchise Founded: 1901
City: Oakland, California
League: American League West
Other Names: Philadelphia Athletics (1901 – 1954), Kansas City Athletics (1955 – 1967)
Former Stadiums: Columbia Avenue Grounds, Shibe Park, Kansas City Municipal Stadium
Current Stadium: RingCentral Coliseum 
Pennants: 1902, 1905, 1910, 1911, 1913, 1914, 1929, 1930, 1931, 1972, 1973, 1974, 1988, 1989, 1990
World Series Titles: 1910, 1911, 1913, 1929, 1930, 1972, 1973, 1974, 1989
Retired Numbers: 9, 24, 27, 34, 43, 42

Seattle Mariners 

Franchise Founded: 1977
City: Seattle, Washington
League: American League West
Other Names: None
Former Stadiums: The Kingdome
Current Stadium: T-Mobile Park
Pennants: None
World Series Titles: None
Retired Numbers: 11, 24, 42

Texas Rangers

Franchise Founded: 1961
City: Arlington, Texas
League: American League 
Other Names: Washington Senators II (1961 – 1971)
Former Stadiums: Griffith Stadium, RFK Stadium, Arlington Stadium, Globe Life Park in Arlington
Current Stadium: Globe Life Field
Pennants: 2010, 2011
World Series Titles: None
Retired Numbers: 7, 10, 26, 29, 34, 42

Atlanta Braves

Franchise Founded: 1871
City: Atlanta, Georgia
League: National League East
Other Names: Boston Red Stockings (1871 – 1875), Boston Red Caps (1876 – 1882), Boston Beaneaters (1883 – 1906), Boston Doves (1907 – 1910), Boston Rustlers (1911), Boston Braves (1912 – 1935; 1941 – 1952), Boston Bees (1936 – 1951), Milwaukee Braves (1953 – 1965) 
Former Stadiums: South End Grounds, Congress Street Grounds, Fenway Park, Braves Field, Milwaukee County Stadium, Atlanta-Fulton County Stadium, Turner Field
Current Stadium: Truist Park
Pennants: 1877, 1878, 1883, 1891, 1892, 1893, 1897, 1898, 1914, 1948, 1957, 1958, 1991, 1992, 1995, 1996, 1999
World Series Titles: 1914, 1957, 1995
Retired Numbers: 3, 6, 10, 21, 29, 31, 35, 41, 44, 47, 42

Miami Marlins

Franchise Founded: 1993
City: Miami, Florida 
League: American League East
Other Names: Florida Marlins (1993 – 2011)
Former Stadiums: Hard Rock Stadium
Current Stadium: LoanDepot Park
Pennants: 1997, 2003
World Series Titles: 1997, 2003
Retired Numbers: 42

New York Mets

Franchise Founded: 1962
City: New York City, New York
League: National League East
Other Names: None
Former Stadiums: Polo Grounds, Shea Stadium
Current Stadium: Citi Field
Pennants: 1969, 1973, 1986, 2000, 2015
World Series Titles: 1969, 1986
Retired Numbers: 14, 31, 37, 41, 42 

Philadelphia Phillies

Franchise Founded: 1883
City: Philadelphia, Pennsylvania
League: National League East
Other Names: Philadelphia Quakers (1883 – 1889), Philadelphia Blue Jays (1944 – 1949)
Former Stadiums: Recreation Park, Baker Bowl, Shibe Park, Veterans Stadium
Current Stadium: Citizens Bank Park
Pennants: 1915, 1950, 1980, 1983, 1993, 2008, 2009
World Series Titles: 1980, 200
Retired Numbers: 1, 14, 15, 20, 32, 36, 42

Washington Nationals 

Franchise Founded: 1969
City: Washington, District of Columbia
League: National League East
Other Names: Montreal Expos (1969 – 2004)
Former Stadiums: Jarry Park Stadium, Olympic Stadium, RFK Stadium
Current Stadium: Nationals Park
Pennants: 2019
World Series Titles: 2019
Retired Numbers: 8, 10, 30, 42

Chicago Cubs

Franchise Founded: 1876
City: Chicago Illinois 
League: National League Central
Other Names: Chicago White Stockings (1876 – 1889), Chicago Colts (1890 – 1897), Chicago Orphans (1898 – 1902)
Former Stadiums: 23rd Street Grounds, Lakefront Park I, Lakefront Park II, West Side Park I, South Side Park, West Side Park II
Current Stadium: Wrigley Field
Pennants: 1876, 1880, 1881, 1882, 1885, 1886, 1906, 1907, 1908, 1910, 1918, 1929, 1932, 1935, 1938, 1945, 2016
World Series Titles: 1907, 1908, 2016
Retired Numbers: 10, 14, 23, 26, 31, 42

Cincinnati Reds

Franchise Founded: 1882
City: Cincinnati, Ohio
League: National League Central
Other Names: Cincinnati Red Stockings (1882 – 1889), Cincinnati Redlegs (1954 – 1958)
Former Stadiums: Bank Street Grounds, League Park I, League Park II, Palace of the Fans, Crosley Field, Riverfront Stadium
Current Stadium: Great American Ball Park
Pennants: 1919, 1939, 1940, 1961, 1970, 1972, 1975, 1976, 1990
World Series Titles: 1919, 1940, 1975, 1976, 1990
Retired Numbers: 1, 5, 8, 10, 11, 13, 14, 18, 20, 24, 42

Milwaukee Brewers

Franchise Founded: 1969
City: Milwaukee, Wisconsin
League: National League Central
Other Names: Seattle Pilots (1969)
Former Stadiums: Sick’s Seattle Stadium, Milwaukee County Stadium
Current Stadium: American Family Field
Pennants: 1982
World Series Titles: None
Retired Numbers: 1, 4, 19, 34, 44, 42

Pittsburgh Pirates

Franchise Founded: 1882
City: Pittsburgh, Pennsylvania
League: National League Central
Other Names: Pittsburgh Alleghenys (1882 – 1890)
Former Stadiums: Exposition Park I, Exposition Park II, Recreation Park, Exposition Park III, Forbes Field, Three Rivers Stadium
Current Stadium: PNC Park
Pennants: 1901, 1902, 1903, 1909, 1925, 1927, 1960, 1971, 1979
World Series Titles: 1909, 1925, 1960, 1971, 1979
Retired Numbers: 1, 4, 8, 9, 11, 20, 21, 33, 40, 42

St. Louis Cardinals

Franchise Founded: 1882
City: St. Louis, Missouri
League: National League Central
Other Names: St. Louis Brown Stockings (1882), St Louis Browns (1883 – 1898), St. Louis Perfectos (1899)
Former Stadiums: Sportsman’s Park I, Robinson Field, Sportsman’s Park II, Busch Memorial Stadium
Current Stadium: Busch Stadium
Pennants: 1885, 1886, 1887, 1888, 1926, 1928, 1930, 1931, 1934, 1942, 1944, 1946, 1964, 1967, 1968, 1982, 1985, 1987, 2004, 2006, 2011, 2013
World Series Titles: 1926, 1931, 1934, 1942, 1944, 1946, 1964, 1967, 1982, 2006, 2011
Retired Numbers: 1, 2, 6, 9, 10, 14, 17, 20, 24, 42, 45, 85

Arizona Diamondbacks

Franchise Founded: 1998
City: Phoenix, Arizona
League: National League West
Other Names: None
Former Stadiums: None
Current Stadium: Chase Field
Pennants: 2001
World Series Titles: 2001
Retired Numbers: 20, 51, 42

Colorado Rockies

Franchise Founded: 1993
City: Denver, Colorado
League: National League West
Other Names: None
Former Stadiums: Mile High Stadium
Current Stadiums: Coors Field
Pennants: 2007
World Series Titles: None
Retired Numbers: 17, 42

Los Angeles Dodgers

Franchise Founded: 1883
City: Los Angeles, California
League: National League West
Other Names: Brooklyn Grays (1883; 1885 – 1887), Brooklyn Atlantics (1884), Brooklyn Bridegrooms (1888 – 1898), Brooklyn Superbas (1899 – 1910), Brooklyn Trolley Dodgers (1911 – 1912), Brooklyn Robins (1913 – 1931), Brooklyn Dodgers (1932 – 1957)
Former Stadiums: Washington Park I, Ridgewood Park, Eastern Park, Washington Park II, Ebbets Field, Roosevelt Stadium, Los Angeles Memorial Coliseum
Current Stadium: Dodger Stadium
Pennants: 1890, 1899, 1900, 1916, 1920, 1941, 1947, 1949, 1952, 1955, 1956, 1959, 1963, 1965, 1966, 1974, 1977, 1978, 1981, 1988, 2017, 2018, 2020
World Series Titles: 1955, 1959, 1963, 1965, 1981, 1988, 2020
Retired Numbers: 1, 2, 4, 19, 20, 24, 32, 39, 42, 53

San Diego Padres

Franchise Founded: 1969
City: San Diego, California
League: National League West
Other Names: None
Former Stadiums: Qualcomm Stadium (1969 – 2003)
Current Stadium: Petco Park
Pennants: 1984, 1998
World Series: None
Retired Numbers: 6, 19, 31, 35, 51, 42

San Francisco Giants

Franchise Founded: 1883
City: San Francisco, California
League: National League West
Other Names: New York Gothams (1883 – 1884), New York Giants (1885 – 1957)
Former Stadiums: Polo Grounds I, Oakland Park, St. George Cricket Grounds, Polo Grounds II, Polo Grounds III, Hilltop Park, Seals Stadium, Candlestick Park
Current Stadium: Oracle Park
Pennants: 1888, 1889. 1904, 1905, 1911, 1912, 1913, 1917, 1921, 1922, 1923, 1924, 1933, 1936, 1937, 1951, 1954, 1962, 1989, 2002, 2010, 2012, 2014
World Series Titles: 1905, 1921, 1922, 1933, 1954, 2010, 2012, 2014
Retired Numbers: 3, 4, 11, 20, 24, 25, 27, 30, 36, 44, 42