Updated: 10/11/2017 by Computer Hope

401 definition401 may refer to any of the following:

1. 401 is an HTTP status code for unauthorized access, incorrect credentials, or the HTTP location is not setup properly.

Related pages

  • See our HTTP definition for a listing of other HTTP error codes.

2. 401 is a US area code, see our 401 area code listing for further information.

Error, HTTP, Web design terms