Mexico Warns of Rising Vishing Scams Using Domestic and Overseas Phone Prefixes

Federal agencies and cybersecurity specialists confirm an uptick in calls that impersonate banks or companies and aim to extract personal and financial data. Experts highlight frequent use of Monterrey (+52 81) and Mexico City (+52 56) numbers, with reports also pointing to Estado de México ranges such as 71/717. International prefixes repeatedly flagged include +44 (UK), +355 (Albania), +212 (Morocco), +216 (Tunisia), +234 (Nigeria), +233 (Ghana), +225 (Côte d'Ivoire), +27 (South Africa), +91 (India), +855 (Cambodia), +62 (Indonesia) and +251 (Ethiopia). Scammers exploit SIM swapping, short voice recordings of simple replies to authorize actions, and cloned automated phone systems that reuse genuine-sounding bank audio. Guidance emphasizes enabling spam-call blocking, never sharing passwords or NIP by phone, hanging up and contacting institutions via official numbers, and filing reports with the Guardia Nacional at 088.

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