21762
" Area codes 840 and 909 " are California telephone area codes that cover far eastern Los Angeles County and southwestern San Bernardino County .
 California, Los Angeles County, San Bernardino County
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 California, Los Angeles County, San Bernardino County