United States · Consumer Law · Banking & Finance Law
How to stop robocalls and how to stop spam texts: what will replying STOP do?
Replying STOP to a genuine company's text can withdraw your permission, but it is not a cure for scam messages. An FCC rule published October 26 changes how companies can handle opt-outs from November 25.
At a glance
The practical result
- Agency
- Federal Communications Commission
- Outcome
- Final changes to consent revocation
- Law
- Telephone Consumer Protection Act (TCPA)
- Still proposed
- Shorter processing deadline; seven days not adopted
In this article
- What changes on November 25
- Why STOP may end one kind of message
- How to stop spam texts safely
- How to reduce robocalls on your phone
- Does the Do Not Call Registry work?
- How long does a company have after an opt-out?
- The dates that change the answer
- What to check if the messages keep coming
- Questions about unwanted calls and texts
Short answer: Call blocking can reduce scam calls now; withdrawing consent tells a genuine company to stop covered calls or texts you previously allowed. The FCC's final rule published October 26 lets callers specify an allowed opt-out method and treat some informational opt-outs by category, starting November 25, 2026. STOP remains a recognized reply, but an unexpected message from an untrusted sender calls for blocking and reporting, not a reply.

What changes on November 25
Companies will be able to require a specified, clearly disclosed way to withdraw consent, chosen from the FCC's approved methods. Until the amendments take effect, the existing rule allows revocation by any reasonable means. The FCC order changes that choice of method, not whether consumers can withdraw permission at all.
A caller can designate one or more of these methods, and must clearly disclose the chosen method on the call or in each text:
- An automated voice or keypress opt-out during a call.
- A standard reply word, such as STOP, to an incoming text.
- A website or telephone number the caller provides for opt-outs.
A company that properly designates an exclusive method won't have to process requests through other channels. Without that designation, it must still accept reasonable methods. Existing rules that require particular opt-out mechanisms, including for certain prerecorded marketing calls, remain in place; a caller cannot use this change to remove those protections.
Latham & Watkins describes the changes as compliance relief for callers. For you, the practical consequence is narrower: a request sent to an unrelated customer-service inbox may no longer do the job when a valid exclusive method has been disclosed. A consumer lawyer can assess a dispute over a request the company says it did not have to honor.
Why STOP may end one kind of message
An informational opt-out may cover only the category of messages that prompted it under the November rule. A marketing opt-out still withdraws consent to that caller's future marketing robocalls and robotexts. Informational messages, in this rule, contain no advertising or telemarketing.
Suppose you opt out of a bank's payment reminders but still want fraud alerts. The FCC's change allows those categories to be treated separately. That can preserve a useful warning, but someone who wants every category stopped may need to make more than one request. The FCC is still considering whether to require a one-step way to revoke all consent.
The earlier broad 'revoke all' provision had been delayed until January 31, 2027. Paragraph 24 of the new order says the replacement supersedes that delayed date when it takes effect. January is not the start date for this replacement rule. Nor does the change give a marketer permission to divide its sales pitches into categories and keep sending the others after a marketing opt-out.
How to stop spam texts safely
Use a genuine company's opt-out for messages you recognize; don't reply to an unexpected scam text or follow its unsubscribe link. The FTC's guidance on spam texts says to contact a company through a number or website you know is real if you are unsure whether the message came from it.
Under the November rule, a sender that designates reply texts may advertise just one standard word, such as STOP, but must recognize all seven FCC-standardized replies. UNSUBSCRIBE is another accepted word. A sender using a protocol that cannot receive replies must disclose that technical limitation in each text and provide reasonable alternative ways to revoke consent. A requirement for all covered senders to support two-way texting is still only a proposal.
A plain confirmation of your opt-out is allowed if it contains no marketing. A confirmation sent within five minutes is presumed to fall within the earlier consent; a longer delay needs a reasonable explanation. A new promotion is not an opt-out confirmation.
For suspected scam messages, your messaging app's junk-reporting option and forwarding the message to 7726, which spells SPAM, give you reporting routes without replying to the sender. Reporting helps identify unwanted traffic; it is not a promise that the next message will be blocked.
How to reduce robocalls on your phone
Phone and carrier filters can reduce interruptions now, while the legal opt-out rules govern what the sender may do. The useful distinction is between blocking a number, labeling a likely scam and silencing callers you don't know. Silencing every unfamiliar number can also hide a call you wanted.
Apple's call controls and Phone by Google's spam settings offer different choices. The setting names depend on your software and phone app. Screening is worth considering when you still need calls from people outside your contacts, such as a repair technician.
| Phone or service | Option to check | Trade-off |
|---|---|---|
| iPhone with the supported controls | Settings > Apps > Phone > Screen Unknown Callers: Ask Reason for Calling or Silence | Screening asks why the person is calling; Silence sends unsaved callers to voicemail. Screening is unavailable while roaming. |
| Android using Phone by Google | Phone > More options > Settings > Caller ID and spam; Filter spam calls where available | Automatic Call Screen devices use different controls. Filtered calls can remain in history without a missed-call notification. |
| Your mobile carrier | Call labeling or network blocking; T-Mobile offers Scam Block | A warning label still lets a call through. Blocking can catch wanted calls too. |
| Internet-based home phone (VoIP) | A compatible internet call-blocking service | Compatibility and charges depend on your provider and service. |
| Traditional landline | Provider services or a compatible call-blocking device | A device may rely on a maintained list of numbers; it cannot identify every scam. |
Before adding a third-party blocking app, check its charges and whether it accesses your contacts. The FTC explains the choices for mobile and home phones. Start with the controls you already have rather than assuming another subscription is necessary. T-Mobile also warns that Scam Block can stop calls you want.
A familiar area code is not proof of a familiar caller. Scammers can fake the displayed name or number, a practice called spoofing. Blocking that displayed number may not stop the same operation from calling under a different one.
Does the Do Not Call Registry work?
Yes, for limiting sales calls from companies that follow the law. It does not technically block calls or stop scammers. The National Do Not Call Registry is free for home and mobile numbers, and the FTC says sales calls can take up to 31 days to stop after registration.
Registration and a company-specific opt-out solve different problems. The Registry is not a switch that turns off every message from a business you already use. For those communications, consent and the type of call still matter. Keeping your number on the Registry is worthwhile, but relying on it alone leaves the scam-call problem untouched.
How long does a company have after an opt-out?
A reasonable time, with a maximum of ten business days after receipt, remains the general deadline for covered consent-revocation requests. The FCC has asked about shortening that period, including a seven-business-day approach. It has not adopted seven days in this order. Ten days is a ceiling, not an automatic entitlement to keep calling for the entire period.
Some narrower rules demand faster action. Financial institutions using the specific exemption for certain fraud and security alerts must honor opt-outs immediately. The November change lets those institutions use numbers obtained from specified reliable sources, such as a family member authorized on the account, rather than only numbers customers supplied directly. Other conditions on that exemption remain.
That change does not authenticate a message that claims to be your bank. The FTC warns that scammers may already know personal details. A known bank app or the number on your card is a safer way to verify the claim. A dispute with the institution itself may need a lawyer who handles banking and finance law.
The dates that change the answer
November 25 is both the final rule's effective date and the deadline for initial comments on separate proposals. The Federal Register notice gives December 28 for replies. The proposals cover faster processing and wider opt-out choices; they do not create those new duties today.
The FCC adopts FCC 26-67.
The FCC releases the order and further proposals.
The final rule and proposed-rule notice are published in the Federal Register.
The final changes take effect. Initial comments on the separate proposals are due.
Reply comments on the proposals are due.
What to check if the messages keep coming

The request and the messages that followed are more useful than a call count alone. They help establish whether the same sender continued the same kind of contact, and which rules applied at the time.
- The sender's identity, verified separately from the displayed caller ID or text link.
- Whether the message was marketing, informational or potentially covered by an exemption.
- The date and method of the opt-out, including any instructions the sender disclosed.
- A copy of the request or confirmation, plus subsequent messages and their timestamps.
- Whether the later contact was the same category and whether the applicable processing period had passed.
The FTC accepts unwanted-call reports through DoNotCall.gov and scam reports through ReportFraud.ftc.gov. Its phone-scam guidance distinguishes a report from the separate steps needed when money or account details have been lost. A report helps enforcement; it does not decide your individual claim.
Continuing contact may warrant a case-specific assessment by a lawyer who handles civil litigation. Juricue's legal help option can help you request a connection if you do not have one. Juricue is not a law firm, this is general information rather than legal advice, and contacting Juricue does not create an attorney-client relationship.
Questions about unwanted calls and texts
Does 662 really work?
Yes, the full code #662# turns on T-Mobile's Scam Block from a T-Mobile device. It is not a universal code for every carrier, and it does not revoke consent you gave a company. It targets calls identified as likely scams and can also block wanted calls.
What happens if I answer a spam call but don't say anything?
You have answered the call, but silence does not tell you who is calling or make further interaction safe. The FTC advises hanging up on suspected illegal robocalls without pressing buttons. Do not disclose personal information or call back using a number supplied by the suspicious caller.
How do spam callers get my number?
Scammers can buy or steal personal details, including information that makes a call sound convincing. A caller knowing your name or account details does not prove they represent your bank. Contact the organization through a route you already trust instead of treating that knowledge as identification.
Can I stop spam calls permanently by blocking each number?
No single blocking method catches every unwanted call. A scammer can change or fake the number shown on caller ID, while a legitimate call from an unfamiliar number can be filtered by mistake. Blocking reduces interruptions; verifying the sender remains a separate task.
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Dealing with something like this?
Legal issues like this affect people and businesses differently. A lawyer can explain what it means for you, and we can help you find one.
Juricue is not a law firm and doesn't give legal advice. Contacting us doesn't create an attorney-client relationship.

