Last updated: October 22, 2026. Rexxfield is a cyber-investigations firm, not a law firm. This is general information, not legal advice.
Short answer: a civil litigant can subpoena X (formerly Twitter) for non-public account information, such as the email address used to sign up and IP login records. X does not accept legal process by email, and it will usually notify the account holder before it responds. Message and post contents are treated differently, and generally need a search warrant or equivalent rather than a civil subpoena.
What a civil subpoena can get from X
X says that obtaining non-public information, such as the email address used to sign up for an account or IP login information, requires valid legal process like a subpoena, a court order or other local legal process, depending on the country issuing the request. For harassment, defamation and impersonation cases, that registration and login data is usually what an attorney wants, because it is what leads from an anonymous account to a person.
Requests for the contents of communications, such as posts, direct messages and media, require a valid search warrant or equivalent, served on the correct X corporate entity. Civil litigants should plan on not getting contents through a subpoena alone.
How to serve a subpoena on X
According to X’s help center, legal requests from non-government parties can be sent by mail or served on X Corp.’s registered agent, CT Corporation. X lists these mailing addresses:
- X Corp., Attn: Safety — Legal Policy, 865 FM 1209, Building 2, Bastrop, TX 78602
- X Internet Unlimited Company, Attn: Safety — Legal Policy, One Cumberland Place, Fenian Street, Dublin 2, D02 AX07, Ireland
X states that accepting legal process by these means is for convenience only and does not waive any objection, including lack of jurisdiction or proper service. It does not accept legal process by email. Its Legal Request Submissions site is for government agencies only, so private litigants cannot use it.
What happens after you serve it
- Review. An X agent checks that the request meets the statutory requirements. X may ask for more context, or object if the request is defective, overbroad or appears to burden free expression.
- User notice. By default, X tries to notify the account holder through the app and by email, unless it is prohibited from doing so, for example by a non-disclosure order. The account holder then has a chance to object in court or delete content.
- Response. For a valid, properly scoped request with no successful objection, X produces the records electronically.
Because the user is usually told, expect the account to change or disappear once the notice goes out. Preserve screenshots, URLs and archives of the account before you serve anything.
Tips for a stronger subpoena
- Identify the account precisely, with the handle, the numeric account ID if you have it, and the URLs of the relevant posts.
- Ask only for what you need, such as sign-up details and IP logs for a defined date range. Narrow requests are less likely to draw objections.
- Check the current X pages before you serve. Addresses and procedures change, and older guidance online is out of date.
- Expect the IP address to lead to an internet provider, who is a second subpoena target, and sometimes to a VPN or other service that hides the user.
Where an investigator helps
A subpoena works best when the evidence is already organized. Rexxfield identifies and documents the accounts involved, preserves perishable evidence, and drafts subpoenas for your attorney to review, sign and issue. We also provide expert testimony where a case needs it. See our litigation support for attorneys or contact us for a free consultation.
Sources: X Help Center, Legal request FAQs and How to access your X data.
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