Evidence Basics · 9 min read
How Long Do Carriers Keep Text Messages?
What phone companies actually retain, why message content is almost never among it, and why a civil subpoena to a carrier rarely produces the conversation you want.
The short answer
Phone carriers keep two very different things, and the distinction decides what you can obtain. They retain transactional records — which number messaged which number, at what time, and roughly how large the message was — usually for somewhere between several months and several years, because those records support billing and network operations. They generally do not retain the content of text messages, or retain it for only a few days at most, and several major carriers state they do not store content at all. So the answer to "how long does my carrier keep my texts" is usually that the metadata outlives the messages by years and the messages themselves were never kept. On top of that, the Stored Communications Act sharply limits what a provider may disclose, and it generally prevents a civil litigant from obtaining message content by subpoena even where content happens to exist. In practice the conversation has to come from a device or an account, not from the phone company. That pushes the entire problem back onto preservation. If the messages matter, the copy on someone’s phone is very likely the only copy that will ever exist, and every day it stays unpreserved is a day it can be deleted, overwritten by a new device, or lost with a broken screen. Metadata: numbers, timestamps, direction, and message size — retained on the order of months to years, and reachable by subpoena in many circumstances. Content: the words in the message — usually not retained at all, and generally not obtainable by civil subpoena even when it is. iMessage, WhatsApp, Signal, and RCS: not carrier SMS, frequently end-to-end encrypted, and not sitting in a carrier database waiting to be requested. Preservation: a request under 18 U.S.C. § 2703(f) can require a provider to hold what it currently has for 90 days while process is prepared.
What is the difference between message metadata and message content?
Metadata is the record that a message happened. It names the sending and receiving numbers, the date and time, the direction, and often the size of the message or whether it carried an attachment. Carriers generate it as a by-product of delivering and billing for the traffic, which is why it survives: it is operational data the business needs. Content is what the message said. Delivering a text does not require storing it afterwards, so once an SMS has reached the handset the carrier has no operational reason to keep a copy, and storing billions of private messages would create an expensive and legally hazardous archive. That is why the industry position has converged on not retaining content, and why the useful question is almost never how long content is kept but whether it was ever kept at all. The practical consequence is that carrier records can corroborate that a conversation occurred at a particular time between particular numbers, which is genuinely useful for authentication and for rebutting a claim that no contact took place. They will not tell anyone what was said.
Can you subpoena text messages from a phone company?
For metadata, often yes, subject to the usual rules about relevance, scope, and notice. Call and message detail records are routinely obtained in both criminal and civil matters, and they are frequently the cleanest way to establish that two numbers were in contact across a period. For content, generally no — and this is where expectations most often break down. The Stored Communications Act restricts when a provider may divulge the contents of a communication, and courts have consistently read it to prevent civil litigants from compelling content from a provider by subpoena. Content is typically reachable by law enforcement through a warrant, not by a party to a lawsuit through discovery. The route that does work in civil litigation is discovery directed at the other party, requesting the messages from the device or account they control, with the usual consequences available if they fail to preserve or produce them. None of this is legal advice about your matter, and the rules have wrinkles that depend on the forum, the provider, and what is being sought. Ask counsel before building a strategy around a subpoena to a carrier.
How long do the records last?
Long enough to be worth requesting, and not long enough to wait. Retention periods for transactional records differ by carrier and by record type, and they change as policies and systems change, so any specific figure published in an article ages badly — a widely circulated federal comparison chart from 2010 is still quoted today despite describing systems that have since been replaced. Treat published numbers as an indication that records exist rather than as a promise about your case. The reliable move is to act as though the window is short. Send a preservation request early, because a provider that has been asked to preserve records under 18 U.S.C. § 2703(f) must hold what it has for 90 days, extendable on request, which stops normal deletion cycles from running while process is prepared. Confirm what is being preserved rather than assuming, since a preservation request only reaches what the provider actually holds at that moment.
Why do iMessage, WhatsApp, and RCS behave differently?
Because they are not carrier SMS. An iMessage between two Apple devices travels over Apple’s service rather than the carrier network, so it does not appear in carrier message records at all — which is why a phone bill can show a gap during a period when two people were messaging constantly. WhatsApp and Signal are end-to-end encrypted, meaning the provider cannot read the content even in principle. RCS is carried differently again and, where encryption applies, is likewise not readable by the carrier. That leaves subpoenas to those providers reaching account-level information — registration details, and for some services the timing of activity — rather than conversations. For anything said in the thread, the device or an account export remains the source, which is the same conclusion the carrier route arrives at from the other direction.
What should you do instead?
Preserve the copy that exists. Whatever the messages are worth, the version on the phone is almost certainly the only complete one, and it is under the control of a person rather than an institution with retention obligations. Export it, keep the export untouched, record a checksum, and do the reviewing on a working copy. Then use carrier records for what they are good at. Metadata corroborates: it can confirm that contact happened on the dates the messages claim, establish a pattern of repeated contact, and undercut an assertion that two people were not in touch. Pairing a preserved export with carrier records is considerably stronger than either alone, because the records support the authenticity of the thread without anyone needing the carrier to have kept the thread itself. Preserve the device or an export before anything else, and before a phone is replaced, reset, or repaired. Send a preservation request to the provider early if carrier records may matter, rather than waiting for process to be ready. Request metadata for the periods in dispute, and expect it to corroborate timing rather than reveal content. Direct requests for the messages themselves at the party who holds them, not at the carrier. Record which numbers, accounts, and services each conversation used, since that determines which provider holds anything at all.
How long do phone carriers keep text messages?
Carriers keep transactional records — which numbers messaged each other and when — for periods that generally run from several months to a few years, because those records support billing and network operations. They usually do not keep the content of the messages at all, and where any content retention exists it has historically been measured in days. Published retention figures age quickly, so treat them as an indication that records exist rather than a guarantee about your matter.
Can text messages be subpoenaed from Verizon, AT&T, or T-Mobile?
Transactional records often can be, subject to the usual rules on relevance and scope. Message content generally cannot be obtained from a carrier by a civil subpoena: the Stored Communications Act restricts when a provider may divulge the contents of a communication, and courts have read it to bar civil litigants from compelling content from providers. Content is typically reached by law enforcement through a warrant rather than by a party through discovery.
Do carriers store the actual words in a text message?
Generally not. Delivering an SMS does not require keeping a copy once it reaches the handset, and retaining billions of private messages would create a costly and legally exposed archive, so the industry position has converged on not storing content. Several major carriers state plainly that they do not retain it. That is why the more useful question is rarely how long content is kept, but whether it was ever kept at all.
Will iMessages show up in carrier records?
No. An iMessage between Apple devices travels over Apple’s service rather than the carrier network, so it does not appear in carrier message records — which is why a phone bill can show no activity during a period when two people were messaging constantly. The same applies to WhatsApp and Signal. A gap in carrier records is therefore not evidence that no conversation happened.
What is a preservation letter and when should I send one?
It is a request that asks a provider to hold the records it currently has rather than letting normal deletion run. Under 18 U.S.C. § 2703(f) a provider that receives one must preserve what it has for 90 days, extendable on request, which buys time while legal process is prepared. Send it as early as possible, because it only reaches what the provider still holds when it arrives.
If the carrier does not have my texts, where do I get them?
From the device or the account. In practice the copy on someone’s phone is the only complete one that will ever exist, which makes preservation urgent rather than routine — a replaced handset, a factory reset, or a deletion removes it permanently. Export the conversation, keep that first export unmodified, record a checksum, and do all reviewing and redacting on a separate working copy.
Published by
Textimony. Editorial status: Source-linked informational guide. Updated: 2026-07-27.
Sources
18 U.S.C. § 2702: Voluntary disclosure of customer communications or records; 18 U.S.C. § 2703: Required disclosure of customer communications or records; Federal Rule of Evidence 901: Authenticating or Identifying Evidence; NIST IR 8387: Digital Evidence Preservation Guidelines