Most trips to Mexico begin at one of two airports: Cancún, for the beaches and cenotes of the Riviera Maya, or Mexico City, for museums, food and day trips to the pyramids. In both, the first thing you need on landing is a safe ride to your hotel, and that is easier with data. Mexico is not part of the EU's Roam Like at Home area, and European plans usually charge for roaming by the day or by the megabyte.
This guide covers where you will need a connection, where it fades, and how to stay reachable.
Key facts for Mexico
- EU roaming: not covered by Roam Like at Home
- Local networks: Telcel (depending on the plan)
- Emergency numbers: 911; anonymous reports 089
- Embassies: in Mexico City, with consulates in Cancún, Guadalajara, Monterrey and other cities
Areas to avoid
The UK advises against all but essential travel to parts of Mexico affected by cartel violence: all of Zacatecas; most of Chihuahua, Sinaloa, Tamaulipas, Michoacán, Colima and Guerrero; parts of Baja California around Tijuana and Tecate, of Guanajuato and of Jalisco; and the area within 40 km of the Guatemalan border in Chiapas. The exceptions include Mazatlán, Los Mochis, Morelia, Pátzcuaro, Manzanillo and Ixtapa-Zihuatanejo reached by air, while Cancún, the Riviera Maya, Mexico City, Oaxaca and Yucatán are not on the list. Check the travel-safety page before planning a road trip.
Arriving: get a safe ride first
At the airport, use the authorised taxi counters inside the terminal or a ride-hailing app rather than accepting offers in the arrivals hall. Uber and DiDi operate in Mexico City, Guadalajara, Monterrey and many other cities, showing the driver and the fare before you get in. Share your trip with someone from the app, and keep your hotel address saved on the phone.
Mexico City and the big cities
Coverage in Mexico City is strong, and data does most of the work: metro routes, restaurant reservations, museum tickets and ride-hailing. Payment by card is common in restaurants and shops, while markets and street food stalls often prefer cash.
The Riviera Maya, cenotes and the road
Cancún, Playa del Carmen and Tulum are well covered, and so are the main highways between them. Coverage gets patchy in the jungle around some cenotes and archaeological sites, on the roads into the Yucatán interior, in parts of Oaxaca and Chiapas, and across long desert stretches in Baja California. Download offline maps before a day trip and tell someone where you are going.
Heading on to Guatemala, Belize or north to the United States? The Mexico plan stops at the border. A multi-country plan for the Americas avoids buying a second eSIM; the plan page lists every country it includes.
Getting connected
With a travel eSIM, set up in a couple of minutes before departure, the phone is online as soon as the plane lands, which is exactly when you need to book the ride to your hotel. The days only start counting from that first connection. Your usual number still gets SMS, WhatsApp voice works over the eSIM's data, and you can normally share it with a laptop as a hotspot (if a plan limits this, its details say so before you pay).
Prefer a Mexican number? Operator shops and many convenience stores sell local SIM cards. Since 2026, a Mexican SIM or eSIM only works for emergency calls until it is registered to its owner: visitors register with their passport, at the operator's shop or online with a photo of the passport and a face check.
Consular protection: who to call in Mexico
- 911 is the national emergency number for police, ambulance and fire.
- 089 takes anonymous reports of crimes.
- Embassies are in Mexico City and many countries have consulates in Cancún and other cities. The Telcomia app shows yours, with address and phone, and the travel-safety page summarises the current advice by state.
- If you are an EU citizen and your country has no embassy or consulate in Mexico, the embassy of any other EU country must help you on the same terms as its own nationals (Article 23 of the Treaty on the Functioning of the EU).
- Emergency phrases in Spanish are ready to show on screen in the app.
Questions travellers ask about Mexico
How do I get a safe taxi from the airport?
Use the authorised taxi counters inside the terminal or a ride-hailing app, and share your trip from the app.
Which network does a Telcomia eSIM use in Mexico?
Telcel, depending on the plan, with 4G and 5G where available.
Do I need to register my eSIM in Mexico?
No. Mexico's registration applies to Mexican SIMs and eSIMs, which visitors register with their passport. A travel eSIM connects through roaming, so there is nothing to register when you land. Mexico's regulator has said it will later decide how roaming lines are registered; if that changes anything for visitors, we will update this guide.
Will I have signal at the cenotes?
Around the main towns, yes. In the jungle and at more remote cenotes it can drop, so plan with offline maps.
Can I use the same eSIM in Guatemala or the United States?
Only with a multi-country plan for the Americas. The Mexico plan covers Mexico alone.
The short version
Install the eSIM before you fly, switch it on when you land, book your ride from the app or an authorised counter, and download offline maps before heading into the jungle or the desert.
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