| Large government ranges | |
|---|---|
| 156.33.0.0/16 | 156.33.0.0 – 156.33.255.255 (U.S. Senate) |
| 194.60.0.0/20 | 194.60.0.0 – 194.60.63.255 (U.K. Parliament) |
| 143.231.249.141 | (U.S. House of Representatives) |
| 192.197.77.0/24, 192.197.78.0/23, 192.197.80.0/22, 192.197.84.0/23, 192.197.86.0/24 | 192.197.77.0 – 192.197.86.255 (Government of Canada) |
Use this form to block account creation or write access in accordance with the blocking policy. Remember to fill in an informative reason (especially since it will be shown to autoblocked legitimate users), and to write the length in GNU standard format. For detailed information on blocking IP addresses, see Wikipedia:Blocking IP addresses. Note that blocked users can still edit their talk page.
- Related pages: Block log, List of active blocks, Unblock form, Autoblock tool.
IP addresses
- In general: Most IP addresses should not be blocked for more than a few days, as they may be reassigned to innocent users. Do not block any IP address indefinitely unless it is an open proxy.
- Proxy servers: Blocking proxy servers can affect many innocent users. For example, see dealing with AOL vandals and the table of AOL IP addresses to the right. Please check "Block anonymous users only" when blocking in these ranges, or keep the block to 15 minutes or less. Longer blocks are often removed promptly because of the collateral damage.
- 145.97.39.143 is the Toolserver. If this IP is blocked, especially with a hard block, many important bots stop working, including AntiVandalBot.
- Blocks of governmental IP ranges: If you block any IP in the ranges listed on the right under "Large government ranges", you must notify the Wikimedia Foundation Communications Committee immediately (see contact instructions there). These ranges are allocated to major governmental organizations; blocks of these organizations have political and public relations implications that the Foundation's press relations team must be aware of. Avoid long blocks of these addresses and be especially careful in formulating your block messages because your block message will probably be seen and commented on by the press.