What does Mexico's REPEP stop, and what does it not?
REPEP is PROFECO's free list to stop advertising calls and texts in Mexico. How to join, how long it takes, and why banks and scam calls are not covered.
Read the guideGuides to scam and spam calls
Short guides for people in Mexico and the United States. Each one names its sources and says when we checked them.
Mexico
Registries, bank calls and line registration, as the Mexican authorities describe them.
Got a call from your "bank" in Mexico? What to do
CONDUSEF explains how fake bank calls work in Mexico, what banks never ask by phone, how to check a number on its tool, and what to do if you shared data.
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Mexico's mobile line registration: what it is and is not
Mexico's CRT says prepaid mobile lines must be linked to a CURP. See the official deadlines by last digit and why this registration is not a spam filter.
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United States
The Do Not Call Registry and what the FTC’s numbers say.
What the US Do Not Call Registry stops, and what it can't
The US Do Not Call Registry stops sales calls from honest companies, not scammers. How to register, how long it takes, which calls still come through.
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Imposter scams in the US: what the FTC's 2025 numbers say
The FTC received over 1 million imposter-scam reports in 2025 with over $3.5 billion lost. What the numbers cover, what they leave out, and how to read them.
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For everyone
What to do after a bad call, how to help family, and how Realcaller scores numbers.
You answered a scam call. What now? A checklist for the US and Mexico
Answered a scam call? Separate checklists for the US (FTC advice) and Mexico (CONDUSEF and official lines), depending on whether you shared data or paid.
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How to help your older parents avoid phone scams
A kind, practical way to talk with older parents about scam calls, using FTC advice for the US and CONDUSEF and CRT guidance for Mexico. Simple rules, no fear.
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How does Realcaller decide a number looks like spam?
Realcaller turns a number's reports into a 0 to 1 score and shows the reason. How the score is built, where the data comes from, and what we do not have yet.
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Realcaller shows why a number was flagged
It is an Android caller ID app in development and not on Google Play yet. Join the waitlist to hear about it. Today its data is US only (FTC and FCC complaints, as of October 7, 2026); in Mexico it can only grow from user reports.