311 may refer to:

• 311 (number) , a natural number
• AD 311 , a year of the Julian calendar, in the fourth century AD
• 311 BC , a year of the pre-Julian Roman calendar
• 311 (band) , an American band
  • 311 (album) , band 311's self-titled album
• 311 (DSM-IV) , DSM-IV code for "Depressive Disorder Not Otherwise Specified"
• 311 Boyz , a teen gang in Las Vegas, Nevada
• 311 Claudia , a main-belt asteroid
• 3-1-1 , the telephone number of local information service operated by some local governments in the United States and Canada
• 3-1-1 for Carry-Ons , a procedure enacted by the United States Transportation Security Administration
• 311 earthquake , the 2011 T?hoku earthquake and tsunami off Japan
• 311, the area code of a common fictitious telephone number (311-555-2368) used in early Bell System ads and in fiction

See also [ edit ]

Search for "311"  or "3-1-1" on Wikipedia.

• Class 311 (disambiguation)
• 3/11 (disambiguation)
• All pages with titles beginning with 311
• All pages with titles containing 311

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