How do you get a mobile phone plan in Argentina in 2026?

Claro, Personal, and Movistar dominate consumer SIMs. Airport kiosks at Ezeiza and city stores sell prepaid chips against a passport. Ask for a starter data pack large enough for maps, translation, and WhatsApp before you ride into town. eSIM options appear in carrier apps and travel eSIM brands; confirm the handset is unlocked and supports the local bands.

Keep the packaging and activation SMS. You will reuse the same number for ANSES, bank apps, and prepaga call-backs. Coverage is strong in Buenos Aires, Córdoba, Rosario, and Mendoza cores, then thinner in some Patagonia and northwest stretches: Utilities, internet, and transport.

Postpaid and multi-line family plans usually want stronger ID: DNI progress, CUIL, and a domicilio pack: Get a DNI, Get a CUIL, and Register your address. Banks that send OTPs expect the number to stay stable, so avoid swapping SIMs every week once bank account setup starts.

Top up with official carrier apps or authorised kiosks. Screenshot payment confirmations when peso amounts move quickly. If Migraciones or RENAPER turnos (appointments) SMS your phone, treat that number as part of the residence file: Apply for a residence permit.