Peru has decent mobile coverage in the places you sleep and almost none in the places you walk. Planning around that, rather than discovering it on day two, is the whole point of this article.

The networks

There are four operators worth knowing: Claro, Movistar, Entel and Bitel.

Claro and Movistar are the two largest and generally the safest choice for a traveller. Entel is strong in cities and competitive on price. Bitel has a reputation for reaching further into rural areas, which some trekkers rate highly.

In Lima, Cusco and Arequipa all four work fine. The differences only start to matter once you leave the towns, and there the honest answer is that no operator gives you reliable coverage on a mountain pass.

eSIM or physical SIM

If your phone supports eSIM, that is the easiest route. You buy it before you fly, activate it on landing and skip the shop entirely. The trade-off is price: travel eSIMs are usually dearer per gigabyte than a local SIM, and many are data-only with no Peruvian number.

A physical local SIM is cheaper and gives you a Peruvian number, which is genuinely useful for calling a hotel, a driver or an agency. The trade-off is the errand and the paperwork.

A practical middle path: an eSIM for the first day or two so you land connected, then a local SIM if you are staying more than a week.

What you need to register a SIM

Peru requires SIM cards to be registered to a person, so you cannot simply buy one from a street stall and walk off.

Take your passport. The shop assistant registers the line against it, and the process takes a few minutes.

Buy in an official operator store or a recognised phone shop rather than from an informal vendor. An unregistered SIM can be cut off without warning.

The airport has operator counters, which is convenient but usually more expensive than a store in town. If you land late and tired, convenience may well be worth it.

Wi-Fi in hotels and cafés

Almost every hotel and hostel in Cusco offers Wi-Fi, and it is generally fine for messaging and email.

Video calls are a different matter. In older buildings in the historic centre, and in the Sacred Valley, connections are often slow and drop frequently. Do not schedule an important call from a colonial hotel without a backup plan.

Cafés and restaurants in the tourist centre normally have Wi-Fi and will give you the password with your order.

Signal on the treks, honestly

On the Inca Trail there are spots with signal, usually on high passes, and long stretches with nothing at all. Treat it as no coverage and consider anything you get a bonus.

The Salkantay and Lares routes are similar: patchy at best, absent for most of the day.

Around Ausangate, at over 4,000 metres and far from any town, assume you are offline for the whole circuit.

This matters more than it sounds. Download your maps, your accommodation details, your insurance number and your boarding passes before you leave Cusco. And tell whoever is waiting for your messages at home that they will not hear from you for several days, so silence does not get mistaken for a problem.

Small practical notes

Roaming from your home operator works but is usually the most expensive option by a wide margin. Check the rate before you land rather than after.

Data recharges are sold everywhere: pharmacies, corner shops and supermarkets all top up the main networks.

Download an offline map of Cusco and the Sacred Valley. It costs nothing and solves the most common problem, which is looking for a restaurant in a city where your data has just run out.

Reviewed September 2026. Operators, prices and registration rules change; confirm current terms when you buy.