The GlobalBlocking extension can block an IP address or range (maximum of /16 in IPv4, maximum of /19 in IPv6) from editing all Wikimedia projects except Meta, and is only available to Stewards and selected WMF staff in special groups like WMF Trust and Safety. These are logged in the Global block log.
Globally blocked IP addresses that cause disruption on Meta may additionally be blocked on this project.
While exceptions exist, these are the guidelines:
The GlobalBlocking extension can block accounts from editing all Wikimedia projects except Meta, and is only available to Stewards and selected WMF staff in special groups like WMF Trust and Safety. These global account blocks are logged in the Global block log.
Globally blocked accounts that cause disruption on Meta may additionally be locally blocked.
Global blocks are globally-set actions that prevent a user from editing and making most logged actions across all Wikimedia wikis, but permit local projects to exempt globally blocked users on their wiki. These are preferred over global locks in cases where:
Below is a list of common reasons for global blocks of accounts:
Autoblocks can be created on the IP addresses used by accounts blocked by a global account block. These blocks are created automatically when a user tries to edit while globally blocked or when a Steward creates a global block. They are only created if the global account block enables autoblocking.
Accounts which are "global IP block exempt" are exempted from global blocks applying to a range of IP addresses or an IP address. This exemption has no affect on local IP and IP range blocks made locally on individual wikis, or on a global block of the account.
To apply for global IP block exemption, see Steward requests/Global permissions or use the Unblock Ticket Request System.
A local IP block exemption (Special:UserRights), granted by a local sysop, will exempt a user from a global IP block on that wiki.
All types of global blocks can be locally unblocked on specific wikis by a local sysop of that wiki (Special:GlobalBlockWhitelist).
Requests or appeals should be made on the Global [un]block and [un]lock requests page or the Unblock Ticket Request System.