OHAYU eSIM
AT&T, Movistar, Telcel & Altan Mexico 5G · nationwide

eSIM for Mexico City

Install before you fly - Mexican lines now need biometric registration. Covers all of Mexico.

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Product info

Mexico City eSIM plans

You can install your eSIM before the trip and activate it when you arrive in Mexico. Validity starts after eSIM activation.

Plan details

Operators
Phone number / SMSData-only · no local number or SMS. VoIP calls work fine with your home number.
ActivationInstall now, activate anytime within 30 days. Validity starts on the first connection to a Mexico network.
Reinstallation5 reinstalls on the same device
Speed
Hotspot / tetheringYes · share your connection with other devices
Top-upAdd data anytime in-app · same eSIM

How much mobile data you need

What's the best eSIM for Mexico City?

  • A few days – 3 GB

    Maps, ride-hailing, museums.

  • Central Mexico for a week – 10 GB

    Puebla, Oaxaca, Teotihuacan.

  • Across Mexico – 20 GB

    Capital plus the coasts.

  • Working from Roma or Condesa – 50 GB

    A common base - tethering all day.

Coverage and network

Coverage across the valley

Mexico mobile networks

Mexico averages about 40 Mbps and sits 86th, and Mexico City comes in near 36 - below the national figure, which is unusual for a capital and comes down to how many people share each cell. Telcel has by far the widest reach. Expect workable rather than fast.

AT&TMovistarTelcelAltan Mexico

Speedtest Global Index · Mobile · Mexico City · June 2026

Download

35.9 Mbps

Upload

8.42 Mbps

Latency

24 ms

Global rank

#134 of 98

Mexico City, specifically

  • Roma, Condesa, Polanco, Centro: Reliable 4G with 5G in patches. These are the best-served parts of the city and where most visitors stay.
  • The Metro: Coverage in the tunnels is inconsistent line by line - some stretches carry a signal and some do not. It is also extremely busy, and pickpocketing is common enough that having your phone out on a packed carriage is the bigger risk.
  • Altitude and the sprawl: The city sits at 2,240 m in a basin ringed by mountains, and it is vast. Coverage holds across the built-up area; the further out towards the edges you go, the more it varies.
  • Teotihuacan and the day trips: The pyramids site is covered, as are the roads out. Some of the smaller pueblos mágicos in the surrounding states have thinner service.
  • Xochimilco: The trajinera canals have coverage along the main routes. Further into the quieter channels it drops.

All of Mexico

One plan covers the whole country - the capital, the Yucatán, the Pacific coast, Baja - on the same terms.

Mexico CityPueblaOaxacaGuadalajaraCancúnMonterrey+ all of Mexico

How to install eSIM

Connected in 3 steps

  1. 01

    Buy before you fly

    Choose your data plan before your trip.

    ohayu app buy before you fly for Mexico City eSIM
  2. 02

    Download & install

    Log in to your account, tap your eSIM, and follow the on-screen instructions.

    ohayu app download & install for Mexico City eSIM
  3. 03

    Land & activate

    Activate when you arrive in Mexico. Turn on roaming for the eSIM and it connects to a local network.

    ohayu app land & activate for Mexico City eSIM

Before you buy, make sure your phone supports eSIM — see Ohayu compatible devices list or dial *#06#. It's a free request to your phone's settings. If you see the EID number — your phone is eSIM-compatible.

Arriving in Mexico City

Airport Wi-Fi at MEX and AIFA

Benito Juárez runs a free public network in the terminals. The city now has a second airport, Felipe Ángeles, about 45 km north - a long way out, and a transfer you want to have sorted before you land.

Mexico City Benito Juárez (MEX)
Gratis_CDMX_Aeropuerto - free public Wi-Fi in the terminals
Felipe Ángeles (NLU)
The newer airport 45 km north - free terminal Wi-Fi, long transfer into the city

Side by side

Mexico City eSIM Comparison

OhayuHolaflySailyAiralo
Unlimited optionYesYesCapped dailyNo
Hotspot / tetheringAll plansDaily capYesYes
Support24/7 web & app24/7 web & app24/7 app only24/7 web & app
Device compatibility checkAutoManualManualManual
eSIM re-installationUp to 5xUp to 3xLimitedNot allowed

Indicative comparison based on publicly listed Mexico plans as of August 2026. Competitor pricing and policies change - check their sites for current terms.

Frequently asked questions

Coverage

Do I need to register a SIM in Mexico? The 2026 rules explained

For a Mexican line, yes - and this changed recently. Mexico spent years trying to build a biometric mobile registry; the first attempt, PANAUT, was struck down as unconstitutional by the Supreme Court in 2022 by a 9-2 majority. A new framework took effect in January 2026 that requires every Mexican line - prepaid, postpaid, physical SIM or eSIM - to be linked to an identity record tied to the biometric CURP system. Deadlines for existing numbers have already been extended once and are staggered by the last digit of the number, so the detail is still moving.

The practical point for a visitor: this applies to lines contracted in Mexico. A foreign-issued roaming plan like Ohayu is a roaming service rather than a Mexican line, so it sits outside the framework - and a visitor has no realistic route to a CURP anyway. Correct as of August 2026; worth a check if you are reading this much later.

Where to buy a SIM card in Mexico City?

Telcel has shops everywhere and the widest coverage by a distance; OXXO stores sell top-ups. Between the registration requirements above and the queue, it is the slowest way to get online here.

Is the capital's data fast?

Not especially. Mexico City measures around 36 Mbps against a national 40, which puts it well down the international city rankings. It is fine for maps, ride-hailing and calls. If you are working, the fixed Wi-Fi in a Condesa café will beat it.

Troubleshooting

eSIM not working in Mexico City?

On some Metro stretches there is genuinely no coverage between stations. Above ground, the usual cause is the phone using the wrong line: set Ohayu for mobile data, allow roaming, then toggle Airplane mode. Chat and support@ohayu.com are open 24/7.

From $10.49

Land in Mexico City already connected

Install now - no CURP, no biometric registration.

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