401 (disambiguation)

From Wikipedia, the free encyclopedia

401 may refer to:

  • 401 (number), the natural number following 400 and preceding 402
  • A year: 401 BC or AD 401
  • The area code for Rhode Island
  • Highway 401 (Ontario), a highway that extends across Southern Ontario, Canada.
  • 401(k), a type of employer-sponsored retirement plan named after a section of the United States Internal Revenue Code.
  • Bristol 401, a car produced by Bristol Cars in the early 1950s
  • HTTP 401, a status in the HTTP protocol indicating authentication has failed
This disambiguation page lists articles associated with the same number. If an internal link led you here, you may wish to change the link to point directly to the intended article.
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