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Check which IP addresses are used by a given username, or which usernames are used by a given IP.

IP address or username:

Username, IP address, or CIDR range to check.

check user IP addresses

Too many results (according to query estimate), please narrow down the CIDR.
Here are the IP addresses used ($1 max, sorted by address):

Check IP addresses for [[User:Example]]

Check users' IP addresses and other information

check users' IP addresses and other information

Type of CheckUser request:
;userips:Get IP address of target user.
;edits:Get changes from target IP address or range.
;ipusers:Get users from target IP address or range.

Find common range and affected IP addresses for a list of IP addresses

Get IP addresses

This tool scans recent changes to retrieve the IP addresses used by a user or show the edit/user data for an IP address.
Users and edits by a client IP address can be retrieved via XFF headers by appending the IP address with "/xff". IPv4 (CIDR $1-32) and IPv6 (CIDR $2-128) are supported.
No more than 5,000 edits will be returned for performance reasons.
Use this in accordance with policy.

Checked user, IP address, or CIDR range.

No parameters given

Allows you to manage the list of domains, which are allowed to be used to login with Google.

Check a username against AntiSpoof's normalization checks.

$3, $1 got IP addresses for $2

Incorrect parameters ($1) given

Username of the CheckUser.

view requester's IP addresses whilst processing requested accounts

View requester's IP addresses while processing requested accounts

Block IP address <kbd>192.0.2.5</kbd> for three days with a reason.

Watch the user and talk pages of the user or IP address.

Mass delete by DPL query

Use XFF data instead of IP address.